中央樹脂化学 Product Lineup

If you are looking for a contractor for rubber dissolution or resin processing using heptane as a solvent, please consult Chuo Resin Chemical. Our company accepts orders for the production of dissolution solutions using heptane starting from a minimum of 50L. Heptane is widely used in adhesives and coatings, but insufficient cleaning during product changeovers can lead to quality defects due to residues. We maintain a system of "disassembling and cleaning the mixing tank" for each product change, thoroughly removing any residues attached to the blades and inner walls. This clean process allows us to provide high-quality heptane solutions free from foreign substances. We can also accommodate high-viscosity products up to 60,000 mPa·s. Furthermore, by combining our "rubber kneading" technology, we can offer a one-stop service from raw material formulation to dissolution. 【Features】 ■ Flexible acceptance of heptane dissolution starting from 50L ■ High-quality contamination countermeasures achieved through disassembly and cleaning ■ Comprehensive acceptance from rubber kneading to dissolution ■ We also accept inquiries for dissolution of high-viscosity and difficult-to-dissolve products *Please check the document summarizing "9 Checkpoints for Choosing a Contractor for Dissolution Processing" available for download.

• OEM
• OEM Manufacturing Services

Are you having trouble with resin dissolution or rubber solution production using hexane? At Chuo Resin Chemical, we accept contract processing with hexane as a solvent, starting from a minimum of 50L to a maximum of 3,000L. Hexane is highly volatile and requires careful handling, but thanks to our explosion-proof facilities and safety management system, we can provide stable contract manufacturing (OEM). Our greatest strength is "disassembly cleaning of mixing tanks." By physically removing residual contamination during product changeovers in various formulations using hexane, we maintain high product purity. We support customers facing challenges such as "I only want to produce 50L as a spot order" or "I am considering outsourcing due to fire safety regulations for hazardous material inventory" with our flexible system. Please try our hexane dissolution technology with a free sample test. 【Features】 ■ Small-lot contract manufacturing of hexane dissolution starting from 50L ■ Elimination of contamination during product changeovers through disassembly cleaning ■ One-stop contract service for rubber mixing and dissolution ■ Suitable for spot production considering fire safety measures and BCP *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution" available for download.

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• OEM Manufacturing Services

For dissolution processing using NMP (N-methyl-2-pyrrolidone), which is widely used in lithium-ion battery manufacturing and electronic materials, please leave it to Chuo Resin Chemical. Our company offers contract manufacturing (OEM) of resin dissolution using NMP as a solvent, starting from a minimum of 50 liters. NMP is suitable for dissolving high-performance resins, but contamination with residues can significantly affect physical properties. We implement "disassembly and cleaning of the stirring tank" for each product change, thoroughly eliminating residues from blades and walls. This clean environment ensures the quality of NMP solutions, which require high purity. We can also handle high-viscosity products up to 60,000 mPa·s and conduct dissolution studies for difficult-to-dissolve specialty resins, leveraging our years of expertise. 【Features】 ■ Contract dissolution of NMP starting from 50L for small batches and spot orders ■ Thorough contamination prevention measures through disassembly and cleaning ■ We also accept dissolution studies for high-viscosity and difficult-to-dissolve resins ■ Support for high-precision dissolution in fields such as electronic materials *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

If you are looking for contract manufacturing of resin dissolution or coating agents using ethyl acetate, please consult Chuo Resin Chemical. Our company accepts contract processing with ethyl acetate as the main solvent starting from a minimum of 50 liters for small-scale production. While ethyl acetate has good compatibility with a wide range of resins, insufficient cleaning during product changeovers can lead to quality issues. We thoroughly implement "disassembly and cleaning of the mixing vessel" for each product change. By physically cleaning the blades and walls to remove residues, we produce extremely pure solutions without contamination. We can also handle high-viscosity products up to 60,000 mPa·s, so you can trust us with products that require advanced viscosity management. We also offer contract services from rubber kneading, allowing for cost reduction through integrated production. Please check the quality with our free sample test. 【Features】 ■ Contract dissolution with ethyl acetate starting from 50L ■ Thorough prevention of color change and foreign matter contamination through disassembly cleaning ■ Capable of dissolution for high viscosity (up to 60,000 mPa·s) ■ Comprehensive contract services from rubber kneading to dissolution * Please download the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution" for more information.

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• OEM Manufacturing Services

If you are looking for a subcontractor for resin dissolution or solution manufacturing using MEK (methyl ethyl ketone), please leave it to Chuo Resin Chemical. Our company accepts various processing using MEK as a solvent, from a minimum of 50L to a maximum of 3,000L. While MEK has the aspect of drying quickly and being difficult to handle, our explosion-proof equipment and experienced technical staff ensure stable quality in dissolution processing. Our greatest feature is the "disassembly cleaning" of the stirring tank. By physically removing residues left in the gaps of the blades and on the walls, we maintain the purity of the MEK solution and thoroughly prevent contamination. Even for the production of a wide variety of small lots, we are confident in color changes and the stability of physical properties. Please try our MEK dissolution technology with a free sample test. 【Features】 ■ Flexible acceptance of MEK dissolution from 50L ■ High-quality contamination prevention achieved through disassembly cleaning ■ We also accept inquiries for the dissolution of high-viscosity and difficult-to-dissolve resins ■ We can accommodate repackaging and dilution into specified containers *Please check the document summarizing "9 Checkpoints When Choosing a Subcontractor for Dissolution Processing" available for download.

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• OEM Manufacturing Services

If you need resin or rubber dissolution processing using toluene, leave it to Chuo Resin Chemical. Our company is equipped with explosion-proof stirring equipment and conducts contract manufacturing (OEM) of adhesives, sealants, and paints using toluene as the main solvent. We accommodate small production runs starting from a minimum of 50 liters, ensuring that we can supply only the necessary amounts without holding excessive inventory. Our greatest strength lies in the "disassembly and cleaning of the stirring kettle" performed during product changeovers. Toluene-dissolved products vary widely, but by physically cleaning the inner walls and blades of the kettle, we can reliably prevent contamination from previous charges. You can trust us even for products where clarity and physical properties are critical. We respond quickly and with high quality to requests such as "It has become difficult to handle toluene in-house" or "I want to outsource just a small amount on a spot basis." 【Features】 ■ Contract dissolution of toluene starting from 50L ■ Elimination of contamination during product changeovers through disassembly cleaning ■ One-stop support from rubber mixing to dissolution ■ We also accept inquiries for the dissolution of high-viscosity and difficult-to-dissolve products * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

The challenges such as "the viscosity of the concentrate is too high and difficult to handle" and "I want to eliminate the hassle of mixing solvents on-site" are solved by Chuo Resin Chemical's dilution and dissolution service. We accept processing of resin and rubber solutions diluted with solvents, adjusting to specified concentrations and viscosities starting from a minimum of 50L. Our explosion-proof stirring equipment allows for uniform and stable dilution work. Our commitment is to the "disassembly and cleaning of stirring tanks" for each product change. By removing residues that cannot be completely eliminated through general cleaning, we eliminate the risk of foreign substances contaminating the diluted product and maintain high quality. Additionally, we also accept requests for repackaging the diluted product into specified containers (drums, one-gallon cans, small bottles, etc.). First, please confirm our precise dilution processing with a free sample test. 【Features】 ■ Supports dilution and viscosity adjustment starting from 50L ■ Thorough contamination countermeasures through disassembly and cleaning ■ Consistent acceptance of repackaging into specified containers ■ Contributes to efficient inventory management and BCP measures *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution" available for download.

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• OEM Manufacturing Services

If you are struggling with "dissolution tests" or "prototype manufacturing" in new product development, please consult Chuo Resin Chemical. Our company accepts dissolution processing of resins and rubbers using organic solvents starting from a minimum of 50L, providing a suitable scale for prototype development stages. We can use a wide variety of solvents such as toluene, MEK, and ethyl acetate, and we accept dissolution studies based on specified formulations. Our prototypes are not just about mixing. We thoroughly perform "disassembly and cleaning of mixing tanks" for each product change, allowing for accurate evaluation of development products without worrying about contamination from previous products. Our equipment, ranging from 50L to 3,000L, meets the needs of those who say, "Our in-house lab facilities have limitations" or "We want to consider scaling up for mass production." 【Features】 ■ Supports small-scale prototypes and studies starting from 50L ■ Accurate physical property evaluation through disassembly cleaning ■ Proposes dissolution processes for high-viscosity and difficult-to-dissolve products ■ Consistent support from prototype to mass production (3,000L) *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processing Partner" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we have established a contract manufacturing system that caters to customers seeking "small-scale dissolution processing," starting from a minimum of 50L. When performing small-scale dissolution in-house, the burdens of equipment cleaning, solvent handling, and odor issues can be significant. However, by utilizing our contract services, you can greatly reduce these costs and risks. Even for small-scale production, we do not compromise on our strength in "disassembly cleaning of stirring tanks." We physically remove residues adhering to the inner walls and blades, providing high-quality solutions without foreign matter contamination. We accommodate various solvents such as toluene and MEK, and we can handle high-viscosity dissolutions of up to 60,000 mPa·s. With our spot production starting from 50L, we support your company's flexible business development. Please take advantage of our technology, starting with small-scale prototypes based on specified formulations. 【Features】 ■ Contract small-scale production starting from 50L with specialized equipment ■ High quality even for small quantities and diverse products through disassembly cleaning ■ Reduced burden of solvent handling and inventory management ■ Flexible response to spot production and prototype manufacturing *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

Central Resin Chemical responds to requests such as "Thousands of liters is too much" and "I would like it dissolved in small quantities of around 50L." Our company accepts contract processing of rubber and resin using organic solvents, starting from a class-leading minimum of 50L. Small-scale production is often avoided due to inefficiency, but we have established a flexible system that can accommodate from 50L to 3,000L. By manufacturing only the necessary amount when needed, we solve issues such as "excess inventory stagnation" and "fire safety regulations on hazardous material inventory." Even for small quantities, we ensure high-quality results without contamination by thoroughly cleaning and disassembling the mixing tanks. We also offer spot responses, quickly addressing test sales of new products or small orders for specific customers. Please first verify our small-scale response capability with a free sample test. 【Features】 ■ Acceptable from a class-leading minimum of 50L ■ Prevents inventory stagnation by manufacturing only what is needed ■ Ensures quality through tank disassembly cleaning even for small quantities ■ Spot production for fire safety measures and BCP considerations *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution" available for download.

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• OEM Manufacturing Services

The quality of dissolution processing is determined by the "cleanliness of the equipment." At Chuo Resin Chemical, we have established a system to thoroughly prevent foreign matter contamination by disassembling and cleaning the mixing vessels and storage tanks after each product change. General solvent cleaning (flushing) alone may leave residues of high-viscosity resins and rubber in the corners, posing a risk of contamination in the next charge's product. However, our disassembly cleaning physically removes these residues. This prevents color mixing in transparent solutions and property changes due to foreign matter, ensuring high reliability as an OEM partner. We can accommodate volumes from a minimum of 50L to a maximum of 3,000L, providing cleaning quality that does not compromise even for small-scale production. We also welcome spot requests such as "I just want to create a production record once." 【Features】 ■ Physical barrier against foreign matter contamination through disassembly cleaning of vessels ■ Thorough cleaning that leaves no residues of high-viscosity products ■ Quality tank cleaning available from 50L ■ Peace of mind even for spot production with frequent product changes *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processing Partner" available for download.

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• OEM Manufacturing Services

The challenges such as "fine black spots in the product" and "impurities found after dissolution" can be resolved by the dissolution and filtration technology of Chuo Resin Chemical. Our company standardizes "decomposition cleaning" in the dissolution process using explosion-proof equipment, effectively eliminating foreign matter contamination originating from the equipment. Furthermore, we add a filtration process tailored to the customer's specifications for the products after dissolution. We select meshes and filters to reliably remove even fine foreign matter that cannot be visually confirmed. Since we can handle everything from rubber mixing to dissolution in one contract, we can minimize the risk of foreign matter originating from raw materials. Companies that feel that "filtration cannot keep up with in-house equipment" or "there are limits to contamination countermeasures" are encouraged to take advantage of our free sample test. 【Features】 ■ Elimination of foreign matter from equipment through decomposition cleaning ■ Precision filtration to capture fine impurities ■ Strict quality control with small lot contracts starting from 50L ■ Consistent management from rubber mixing to dissolution * Please check the document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing" available for download.

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• OEM Manufacturing Services

Are you troubled by contamination (foreign matter intrusion) during color changes or variety changes in the dissolution processing of resins and rubber? At Chuo Resin Chemical, we are committed to "disassembly cleaning" of stirring kettles and tanks that handle hazardous materials. It is difficult to completely remove the "residual material" left in the fine steps of the bearing and wall surfaces using common solvent washing or circulation cleaning. We disassemble the kettle and directly clean the inner walls and blades to physically remove the residual material. This thorough cleaning system enables us to maintain high transparency and purity even in contract manufacturing (OEM) with small lot and diverse production. We do not skip this cleaning process even for small production starting from 50 liters. 【Features】 ■ Thorough removal of residual material through disassembly cleaning of stirring kettles ■ No contamination even during color changes or diverse production ■ Physically clean even fine dirt inside the tank ■ Maintain high cleaning quality even for small lots starting from 50 liters *Please check the document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing" available for download.

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• OEM Manufacturing Services

In dissolution processing, contamination and foreign matter due to residuals can lead to fatal defects in products. At Chuo Resin Chemical, we provide extremely high-purity solutions by combining our unique "stirring kettle disassembly cleaning" with precise "filtration processes." We physically remove dirt from the back of blades and wall surfaces that cannot be completely cleaned with conventional solvent cleaning, and further capture fine impurities through post-dissolution filtration. This enables us to meet the stringent quality requirements for contract manufacturing, such as for colorless and transparent resins and electronic materials. We accommodate small-scale production starting from a minimum of 50L, making it suitable for spot production of high-value-added products. We manufacture high-quality dissolution liquids in a clean environment based on your specified formulation. Please verify the precision of our filtration and cleaning technology with a free sample test. 【Features】 ■ Physically block contamination through kettle disassembly cleaning ■ Thoroughly remove fine foreign matter through precise filtration ■ Maintain high quality with small-scale production starting from 50L ■ Suitable for products where purity is critical, such as electronic materials * Please check the document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing" available for download.

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• OEM Manufacturing Services

At Central Resin Chemical, we accept contract dissolution processing for "molded product release" using solvents starting from a minimum of 50L. Our explosion-proof stirring equipment is compatible with a wide range of organic solvents and achieves the appropriate formulation for dissolving specific resins. Notably, we perform "disassembly and cleaning of the stirring kettle" for each product change. By disassembling the kettle and physically removing any residual previous charge materials from the blades and inner walls, we thoroughly prevent foreign matter contamination (contamination) in the cleaning solution itself. We provide high-quality release agents and contribute to improving the yield in your molding process. 【Features】 ■ Contract dissolution solutions for molded product release starting from 50L ■ Thorough elimination of contamination through kettle disassembly and cleaning ■ We also accept inquiries for dissolving high-viscosity and difficult-to-dissolve materials ■ Support for optimizing hazardous material inventory with spot responses * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

Release agents for resins require a diverse combination of solvents and resins, and our company is capable of handling a wide range of organic solvents such as toluene, MEK, and ethyl acetate, allowing us to perform precise dissolutions tailored to customer-specified formulations. Our greatest strength lies in our "disassembly cleaning" process, where we disassemble and clean the mixing tank during product changeovers. This method physically removes resin residues that cannot be eliminated through conventional cleaning, enabling us to provide high-purity and stable release agents. As a result, our products are suitable for applications that are sensitive to color changes and foreign material contamination. We also accept inquiries for processing high-viscosity (up to 60,000 mPa·s) release agents and special resins that are difficult to dissolve. 【Features】 ■ Capable of manufacturing small batches of resin release agents starting from 50L ■ High quality achieved through thorough contamination elimination via disassembly cleaning ■ Feasibility studies for dissolving high-viscosity and difficult-to-dissolve resins ■ Consistent contract manufacturing from small packaging to dilution * Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution" available for download.

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• OEM Manufacturing Services

Our company specializes in rubber dissolution using organic solvents, offering small-scale contract manufacturing starting from a minimum of 50L. In the production of rubber release agents, the key factors are the compatibility of the solvent with the rubber and viscosity management. We are equipped with explosion-proof stirring equipment capable of handling high viscosity products up to 60,000 mPa·s, providing dissolution processing with appropriate formulations. Additionally, we thoroughly implement "disassembly and cleaning of the stirring vessel" during product changeovers, completely preventing contamination from mixing different formulations. This ensures extremely high quality stability, making it safe to use even for delicate materials in release applications. 【Features】 ■ Contract manufacturing of rubber release solutions starting from 50L ■ Thorough quality and contamination management through disassembly and cleaning ■ We also accept inquiries for dissolution studies of high viscosity and difficult-to-dissolve products ■ Spot support to eliminate the risk of excess inventory * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

Our company accepts solvent dissolution of natural rubber starting from a minimum of 50L. Natural rubber has variations in physical properties due to different lots and can be difficult to dissolve, but with our explosion-proof stirring equipment and skilled techniques, we provide a stable solution with uniform viscosity. Our greatest strength lies in the "disassembly and cleaning of the stirring kettle" conducted during product changeovers. By disassembling and directly cleaning the blades and the interior of the kettle, we reliably eliminate residues (contaminants) from previous products, achieving clean manufacturing that does not compromise the inherent properties of natural rubber. Furthermore, we can handle everything from the initial mixing of natural rubber to the dissolution process in one go, contributing to reduced lead times and lower total costs. 【Features】 ■ Accepts small and spot orders for natural rubber dissolution starting from 50L ■ A consistent one-stop system from mixing to dissolution ■ Thorough contamination prevention measures through disassembly and cleaning ■ Capable of dissolving high viscosity (up to 60,000 mPa·s) *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

Central Resin Chemical specializes in contract manufacturing (OEM) focused on the dissolution processing of natural and synthetic rubber. We accommodate a wide range of production scales from a minimum of 50L to a maximum of 3,000L, and we welcome small batch production as well. Our proud "disassembly and cleaning of mixing tanks" is a unique clean system that physically removes residual materials adhering to the blades and inner walls. This allows for safe outsourcing even for delicate rubber solutions. Additionally, we possess rubber "kneading" equipment, enabling us to support the entire process from kneading to dissolution, and even to repackaging and dilution into specified containers. 【Features】 ■ Rubber dissolution starting from a minimum of 50L (spot production available) ■ One-stop contract service from kneading to dissolution ■ Thorough contamination prevention through tank disassembly and cleaning ■ We also accept inquiries for the dissolution of high-viscosity and difficult-to-dissolve rubbers *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processing Partner" available for download.

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• OEM Manufacturing Services

Our company accepts contract work for the dissolution of chloroprene starting from a minimum of 50L. Dissolving chloroprene requires careful viscosity management, and we have the equipment and expertise to handle high-viscosity products up to 60,000 mPa·s, delivering stable quality. A significant strength of ours is the "disassembly and cleaning of the mixing kettle." By disassembling the kettle and cleaning the blades and inner walls each time we change products, we physically prevent contamination from previous products, achieving a high-purity chloroprene solution. Furthermore, we can handle everything from rubber mixing to dissolution in one go, allowing for a smooth transition from formulation design to product development. 【Features】 ■ Spot contract for chloroprene dissolution starting from 50L ■ One-stop contracting for mixing and dissolution is possible ■ Maintaining the purity of chloroprene through kettle disassembly and cleaning ■ We also accept inquiries for the dissolution of high-viscosity and difficult-to-dissolve products *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we accept orders for the solvent dissolution of butyl rubber starting from a minimum of 50L. Using toluene and various solvents, we manufacture stable dissolution solutions based on the customer's specified formulation. Our greatest feature is the ability to handle everything from the "kneading" of the rubber to dissolution in one go. By conducting the entire process consistently, we minimize quality variations and achieve cost-effective production. Additionally, in terms of quality control, we thoroughly implement "disassembly and cleaning of the mixing vessel." We physically remove the adhesive residues unique to butyl rubber, completely shutting out contamination. We can accommodate high viscosity products up to 60,000 mPa·s and also accept inquiries for the dissolution of difficult-to-dissolve materials. 【Features】 ■ Accepting small orders for butyl rubber dissolution starting from 50L ■ Optimizing quality and cost through orders from the kneading process ■ Thoroughly eliminating residual contamination through vessel disassembly and cleaning ■ Capable of dissolving high viscosity (60,000 mPa·s) products *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we accept contract work for SBR solvent dissolution starting from a minimum of 50L, which is considered a very small quantity. Our strength lies in the ability to complete the entire process from the "kneading" of SBR to "dissolution" within a single factory. This eliminates the costs and efforts associated with involving other companies in between, enabling smooth OEM production. In terms of quality, we thoroughly implement "disassembly and cleaning of the mixing kettle" for each product change. To physically eliminate residues from previous charges, we maintain the highest level of purity in SBR solutions, where color and properties are crucial. We also accommodate high-viscosity products up to 60,000 mPa·s, and our technical staff will assist with dissolution considerations for difficult-to-dissolve formulations. 【Features】 ■ Small quantity and spot support for SBR dissolution starting from 50L ■ Capability to handle both rubber kneading and dissolution together ■ Thorough quality and contamination management through disassembly and cleaning ■ Flexible support for repackaging and dilution into specified containers *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

Our company offers contract processing for dissolving NBR in organic solvents, ranging from a minimum of 50L to a maximum of 3,000L. Dissolving NBR requires some expertise in handling solvents, but with years of know-how and explosion-proof stirring equipment, we produce high-quality solutions without lumps. Particularly, by thoroughly implementing "decomposition cleaning," there is no concern about contamination (previous residual mixing) even when changing colors from black to transparent or light colors. Furthermore, a significant feature of our company is that we can handle everything from "rubber mixing processing" to dissolution in one go. By providing a one-stop service from formulation mixing to dissolution, we contribute to reducing lead times and stabilizing quality. 【Features】 ■ Contract manufacturing of NBR dissolution processing starting from 50L ■ One-stop support from rubber mixing to dissolution ■ Thorough elimination of contamination during color changes through decomposition cleaning ■ Possibility of processing high-viscosity and difficult-to-dissolve NBR * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

At Central Resin Chemical, we accept contract manufacturing of solutions using Tetracox starting from a minimum of 50L. Tetracox has excellent adhesion and chemical stability, but it requires careful handling at high viscosity and precise dissolution. Our facilities can accommodate dissolutions up to 60,000 mPa·s, providing uniform solutions without inconsistencies. The key to quality control is "disassembly and cleaning of the stirring kettle." We disassemble the kettle for each product change and completely remove any residues from the blades and walls to prevent contamination between products. This enables OEM manufacturing that maximizes the pure characteristics of Tetracox. 【Features】 ■ Contract dissolution of Tetracox available from 50L ■ Stable and uniform dissolution achieved with high-viscosity compatible equipment ■ Maintenance of Tetracox quality through disassembly and cleaning ■ Small lot support reduces inventory management burden * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

We accept contracts for the dissolution of Opanol and various solvents using explosion-proof stirring equipment, starting from a minimum of 50L. Our strength lies in "thorough disassembly cleaning." When handling highly adhesive materials like Opanol, general solvent cleaning often leaves residues inside the vessel. However, we disassemble the vessel and clean it physically, allowing us to provide high-quality dissolution solutions with complete contamination elimination. We also accommodate high-viscosity products up to 60,000 mPa·s. Additionally, we offer one-stop contracting from the rubber kneading process to utilize the properties of Opanol. Our spot contracting service addresses challenges such as "not having enough equipment to dissolve in-house" or "the production line cannot be operated for such small lots." 【Features】 ■ Contract dissolution of Opanol starting from a minimum of 50L ■ Peace of mind with disassembly cleaning even for highly adhesive materials ■ We also accept inquiries for dissolution of polymers and high-viscosity materials ■ Supply only the necessary amount through spot production *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Partner" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we accept contract processing of PIB solvent dissolution from a minimum of 50L to a maximum of 3,000L. PIB has a high viscosity and is a material that requires effort to dissolve, but we are equipped with explosion-proof stirring equipment that can handle high viscosity products up to 60,000 mPa·s, allowing us to produce a uniform and stable solution. Notably, we perform "disassembly and cleaning of the stirring tank" for each product change. By physically removing any residual previous charge materials from the blades and inner walls, we guarantee a high-purity quality that does not compromise the characteristics of PIB. This allows you to trust us even for applications that are sensitive to color and physical properties. 【Features】 ■ Flexible contract processing of PIB dissolution from 50L ■ Powerful stirring equipment capable of handling high viscosity (60,000 mPa·s) ■ Maintains PIB purity through disassembly and cleaning ■ Minimizes inventory risk with spot production *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processor for Dissolution" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we offer repacking, dilution, and small-scale filling services from drums to one-gallon cans, or from one-gallon cans to specified small containers, starting from a minimum of 50L. Our strength lies not only in simple filling operations but also in our ability to carry out the entire process consistently, from dissolution and stirring using explosion-proof equipment. In particular, we thoroughly implement "disassembly and cleaning of stirring tanks," which effectively prevents contamination from residual materials during small-scale filling. As a result, we can accommodate delicate electronic materials and high-purity chemicals for small-scale filling. Additionally, we excel in handling high-viscosity liquids (up to 60,000 mPa·s), and we welcome inquiries about materials that may be difficult for other companies to handle. 【Features】 ■ Accepts small-scale filling of hazardous materials and organic solvents starting from 50L ■ Thoroughly guards against foreign matter contamination through tank disassembly and cleaning ■ Capable of small-scale filling and repacking of high-viscosity liquids ■ Significantly reduces our own operational burden through spot support *Please check the document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we accept contract processing of resin solutions and rubber solutions starting from a minimum of 50 liters. Using explosion-proof stirring equipment, we can achieve precise concentration and viscosity adjustments using organic solvents such as toluene and MEK. Our commitment lies in the "disassembly and cleaning of the stirring tank" conducted during product changeovers. By physically removing residues that cannot be eliminated through standard solvent cleaning, we prevent foreign substances from contaminating the products after dilution. While we have a manufacturing capacity of up to 3,000 liters, we can also accommodate ultra-small orders of 50 liters, allowing us to dilute and deliver only the necessary amount when needed. Additionally, we offer a service for filling the diluted products into specified containers (such as one-gallon cans, drums, or small bottles). 【Features】 ■ Supports small-lot dilution processing starting from 50 liters ■ Thorough foreign substance contamination measures through disassembly cleaning ■ Capable of filling into specified containers after dilution ■ Contributes to the optimization of hazardous material inventory and BCP measures *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner for Dissolution Processing" available for download.

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• OEM Manufacturing Services

Our company specializes in the processing of dissolving rubber and resin in organic solvents, offering contract manufacturing services ranging from a minimum of 50 liters to a maximum of 3,000 liters. We accommodate a wide range of solvents, including toluene, MEK, and ethyl acetate, ensuring reliable dissolution based on customer-specified formulations. Our greatest strength lies in our "contamination prevention measures." While it is considered difficult to clean stirring tanks used for hazardous materials, we disassemble the tanks after each product change and thoroughly remove any residues attached to the inner walls and blades. This rigorous quality control minimizes the risks of color changes and foreign matter contamination. We also accept inquiries for processing high-viscosity products up to 60,000 mPa·s and difficult-to-dissolve materials. 【Features】 ■ Contract acceptance for solvent cutting of resins starting from 50 liters ■ Elimination of contamination through disassembly and cleaning after each product change ■ Possibility of dissolution studies for difficult-to-dissolve and high-viscosity resins ■ Small-lot and spot production system to prevent inventory stagnation * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processing Partner" available for download.

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• OEM Manufacturing Services

Our company is equipped with explosion-proof stirring equipment and accepts contract dissolution processing using various organic solvents such as toluene and MEK, starting from a minimum of 50L. Even with the high viscosity (up to 60,000 mPa·s) formulations unique to sealants, our equipment and know-how enable stable production. Our greatest strength lies in the "disassembly and cleaning of the stirring kettle" performed during product changeovers. By physically removing any residual previous charge materials from the gaps in the blades and the walls, we ensure extremely high quality stability, allowing you to confidently entrust us with small-lot production of various types. We respond to customer challenges such as "I want to prototype a new product but don't want to stop my own production line" and "I want to avoid excess inventory due to seasonal fluctuations" by providing spot production, manufacturing only the necessary amounts when needed. 【Features】 ■ Capable of dissolving high viscosity (60,000 mPa·s) materials ■ Reduces inventory risk with small-lot production starting from 50L ■ Produces high-quality sealants through disassembly cleaning ■ Accepts contracts from prototyping with specified formulations to mass production * Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

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• OEM Manufacturing Services

At Chuo Resin Chemical, we flexibly accept contract manufacturing of varnishes by dissolving resins in solvents, ranging from a minimum of 50 liters to a maximum of 3,000 liters. Our feature lies in our "disassembly cleaning," where we disassemble the blades and inner walls of the stirring tank for direct cleaning. This allows us to enhance the purity of each product to the utmost level, enabling us to handle precise varnish manufacturing where contamination is not permitted. For the dissolution of difficult-to-dissolve or high-viscosity products, we leverage our years of know-how to propose appropriate manufacturing conditions. We respond to various needs, including considerations for outsourcing due to insufficient production capacity at our own factory or restrictions on handling hazardous materials. 【Features】 ■ Supports small-lot varnish manufacturing starting from 50 liters ■ High-purity quality control system through disassembly cleaning ■ Extensive experience in processing high-viscosity and difficult-to-dissolve resins ■ Capable of small packaging of hazardous materials and delivery in specified containers * Please check the document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing" available for download.

• OEM
• OEM Manufacturing Services

Our company offers spot production starting from a minimum of 50L, proposing a flexible production system that minimizes the risk of excess inventory. In particular, to address concerns about "contamination from pre-charged materials" in adhesive manufacturing, we respond with our unique cleaning system that disassembles and cleans the mixing kettle each time. This enables us to support the creation of high-quality products, such as colorless and transparent adhesives and delicate electronic materials. We can handle a wide range of viscosities, up to a maximum of 60,000 mPa·s, and we are capable of tackling difficult-to-dissolve resins that other companies may refuse. Our contract services are well-suited for requests such as "I want to create a record just once" for BCP measures, as well as for addressing restrictions on hazardous material inventory due to fire safety regulations. 【Features】 ■ Flexible manufacturing scale from 50L to 3,000L ■ Elimination of color mixing and foreign substances through kettle disassembly and cleaning ■ Compatibility with a variety of solvents, including toluene and MEK ■ Suitable for reducing hazardous material inventory and BCP measures *Please check the document summarizing "9 Checkpoints When Choosing a Contract Processing Partner" available for download.

• OEM
• OEM Manufacturing Services

At Chuo Resin Chemical, we accept contract processing of adhesives using organic solvents such as toluene and MEK, ranging from 50L to 3,000L in scale. Our greatest strength lies in the "disassembly and cleaning of the stirring kettle" after each product change. We remove residues that cannot be eliminated by general solvent cleaning and thoroughly eliminate foreign matter contamination. Additionally, we have extensive experience in processing high-viscosity products (up to 60,000 mPa·s) and difficult-to-dissolve materials, allowing for contract manufacturing based on specified formulations. We address challenges such as "production cannot keep up with our in-house equipment" and "too small a volume for other companies to accept," providing flexible support from prototype to mass production. 【Features】 ■ Supports spot production starting from a minimum of 50L ■ Thoroughly prevents contamination through disassembly and cleaning of the stirring kettle ■ Capable of dissolving high-viscosity materials up to 60,000 mPa·s ■ Comprehensive contract processing from rubber mixing to dissolution *Please check the document summarizing "9 Checkpoints When Choosing a Contract Dissolution Processor" available for download.

• OEM
• OEM Manufacturing Services

In April 2024, the Occupational Safety and Health Act will be amended, and all businesses handling substances subject to risk assessment will be required to implement self-management of chemical substances. However, in reality, there are many voices expressing uncertainty about "what to do." <Consulting Services for Technical Notes> - Listing necessary legal compliance based on the chemical substances used - Establishing a chemical substance management system and implementation structure - Preparing necessary documents, etc. <Key Points of the Legal Amendment> - Approximately 2,900 substances will be subject to mandatory risk assessment - Mandatory measures to reduce exposure after conducting risk assessments - Requirement to appoint a chemical substance manager - Requirement to appoint a person responsible for managing the use of protective equipment - Etc... ● For example, are you using products like these? - Adhesives, sealants, adsorbents - Disinfectants, pest control agents - Coatings, paints, thinners, paint removers - Chemicals used in inks, toners, photo development, etc. - pH adjusters, coagulants, settling agents, neutralizers - Dyes, finishing agents - Lubricants, greases, release agents - Laundry detergents, cleaning agents, bleaches - Extractants, rust preventives, foaming agents, etc.

• others

We specialize in the "dissolution processing of rubber and resins using organic solvents" and offer OEM services (contract manufacturing). ■ Feature 1: Small batch and spot production are acceptable Dissolution processing can be commissioned from a minimum of 50L to a maximum of 3,000L, allowing you to produce only the necessary amount of specified formulation solution. * We can also accommodate difficult-to-dissolve and high-viscosity products (up to 60,000 mPa·s). * Small batch production contributes to your inventory issues! "Excess inventory has been stagnant for nearly six months." "We were pointed out by the fire department about excessive hazardous material inventory." "We want to create a production record just once for BCP considerations." We can respond to such needs. ■ Feature 2: Efforts to prevent contamination Generally, it is said that cleaning of stirring tanks for hazardous materials is difficult, but we disassemble the stirring tanks for each product change to remove residues adhering to the inner walls and blades. * For more details, please refer to the materials available for download. You can also view a document summarizing "9 Checkpoints When Choosing a Contract Manufacturer for Dissolution Processing."

• Chemicals

We manufacture a small amount of resin dissolving liquid in-house using drums and hand mixers, but we have concerns about safety and health regarding the handling of solvents. Additionally, we are worried about inspections by the fire department and the labor standards inspection office. Are there any customers who share these concerns? Our company operates in an environment equipped to handle hazardous materials, as reported to the fire department and the labor standards inspection office. We can produce resin dissolving liquid starting from a minimum of 50L, even on a spot basis. Please feel free to contact us when needed. [Issues] ■ We manufacture a small amount of resin dissolving liquid in-house using drums and hand mixers, but we have concerns about safety and health regarding the handling of solvents. ■ We are worried about inspections by the fire department and the labor standards inspection office. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

Before manufacturing, there was a problem where residual previous products that could not be completely removed during kettle cleaning (solvent cleaning) mixed into the products, leading to complaints. There were customers who wanted to use the kettle as a dedicated machine, but faced the challenge that the production volume was not sufficient for that. As a solution, by changing the kettle cleaning before manufacturing from "solvent cleaning" to "disassembly cleaning," we can significantly prevent the mixing of previous products. Our company can accept contract manufacturing starting from a minimum of 50L. Please feel free to contact us when you need our services. [Customer's Challenges] ■ Residual previous products that could not be completely removed during kettle cleaning (solvent cleaning) mixed into the products, leading to complaints. ■ Customers want to use the kettle as a dedicated machine, but the production volume is not sufficient for that. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

Our company specializes in the dissolution processing of rubber and resin (plastic) using organic solvents (hazardous materials class 4) and offers OEM services. ■ Feature 1: Small batch and spot production are acceptable Dissolution processing can be done from a minimum of 50L to a maximum of 3,000L, allowing us to produce only the necessary amount of dissolution liquid with specified formulations. *High-viscosity solutions can also be stirred (up to 60,000 mPa·s). We respond to needs such as: "I have a small demand but want to continue producing," "I want to produce a small amount on a spot basis as we are in the development stage," "I want to create a production record just once for BCP considerations." ■ Feature 2: Efforts to prevent contamination Generally, it is said that cleaning the interior of stirring tanks for hazardous materials is difficult, but our tanks can be disassembled after each product change to remove residues adhering to the inner walls and blades (for tanks below 200L). *For more details, please download the PDF or feel free to contact us. TEL: 048-723-8821 (Contact: Arai) e-mail: kazuhiro.arai@chuo-jushi.com

• Chemicals

This document introduces how to choose a reliable contractor for handling difficult organic solvents (hazardous materials). It includes nine checkpoints such as "Is a hazardous materials handler (license holder) performing the work?" and "Is the stirring equipment 'explosion-proof' and '20-gallon tank'?" Please take a moment to read it. 【Contents】 ■ Checkpoints - To prevent accidents with hazardous materials - Initiatives for contamination prevention - Response to small batch and spot production *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

Objective We verified how much "previous product" remains in the stirring tank (i.e., to what extent the "previous product" can be removed by solvent cleaning) through the measurement of non-volatile components. Verification Method (Solvent Cleaning Method) Immediately after producing resin solution A (dyed purple for visualization), solvent B (2 kg of new solvent) was added to the stirring tank (50L). This mixture was stirred at 40°C for 30 minutes, after which the non-volatile component 1 of the extracted solvent B was measured. Additionally, solvent B (another 2 kg of new solvent) was added, and the above process was repeated to measure non-volatile component 2. Verification Results Non-volatile component 1 = 2.9% → Extracted 58g equivalent of previous product (solid content) through solvent cleaning Non-volatile component 2 = 0.3% → Extracted 6g equivalent of previous product (solid content) through solvent cleaning * Measurement of non-volatile components: Dry weight loss method at 120°C for 30 minutes * Non-volatile component of solvent B (new) = 0.0% Discussion - The fact that non-volatile component 2 was lower than non-volatile component 1 indicates that the effectiveness of solvent cleaning has been confirmed "to some extent." However, although the "previous product" was diluted through two rounds of solvent cleaning, it was not completely removed. * To expect a cleaning method more effective than solvent cleaning, it is considered necessary to "disassemble" the stirring tank and clean the previous product adhered to the internal blades and walls.

• Contract manufacturing

Our company specializes in the dissolution processing of rubber and resin (plastic) using organic solvents (hazardous materials, Category 4) and offers OEM services. "Efforts to Prevent Contamination" Generally, it is said that cleaning the interior of mixing tanks for hazardous materials is difficult, but our tanks can be disassembled after each product change to remove any residues adhering to the inner walls and blades (for tanks under 200L). *For more details, please download the PDF or feel free to contact us. TEL 048-723-8821 (Contact: Arai) e-mail kazuhiro.arai@chuo-jushi.com

• Chemicals

Our company specializes in the dissolution processing of rubber and resin (plastic) using organic solvents (hazardous materials category 4) and provides OEM services. ■ Feature 1: Small-batch and spot production is OK Dissolution processing can be done from a minimum of 50L to a maximum of 3,000L, allowing us to produce only the necessary amount of dissolution liquid with specified formulations. *High-viscosity solutions can also be stirred (up to 60,000 mPa·s). We respond to needs such as: "I have a small demand but want to keep producing." "I want to produce a small amount on a spot basis since I am in the development stage." "I want to create a production record just once for BCP considerations." ■ Feature 2: Efforts to prevent contamination Generally, it is said that cleaning the interior of mixing tanks for hazardous materials is difficult, but our tanks can be disassembled after each product change to remove residues adhering to the inner walls and blades (for tanks under 200L). *For more details, please download the PDF or feel free to contact us. TEL: 048-723-8821 (Contact: Arai) e-mail: kazuhiro.arai@chuo-jushi.com

• Chemicals

Our company specializes in the dissolution processing of rubber and resin (plastic) using organic solvents (hazardous materials category 4) and offers OEM services. ■ Feature 1: Small batch and spot production are acceptable Dissolution processing can be done from a minimum of 50L to a maximum of 3,000L, allowing us to produce only the necessary amount of specified formulation solution. * High-viscosity solutions can also be stirred (up to 60,000 mPa·s). We respond to needs such as: "I want to continue producing even if the demand is low." "I want to produce a small amount on a spot basis since we are in the development stage." "I want to establish a production record just once for BCP consideration." ■ Feature 2: Efforts to prevent contamination Generally, it is said that cleaning the interior of stirring tanks for hazardous materials is difficult, but our tanks can be disassembled after each product change to remove residues adhering to the inner walls and blades (for tanks under 200L). * For more details, please download the PDF or feel free to contact us. TEL: 048-723-8821 (Contact: Arai) e-mail: kazuhiro.arai@chuo-jushi.com

• Chemicals

This page introduces basic knowledge about the dissolution of rubber. General raw rubber (synthetic rubber, natural rubber) comes in a block form called a "bale," which is a rectangular solid weighing about 35 kg. If this bale is directly placed into a dissolution tank, it can cause accidents or malfunctions, so it must be processed through a "roll mill" to be stretched into a thin sheet. Our strength lies in our ability to handle both the "mixing" and "dissolution" of rubber together. We can propose improvements from the mixing process to address issues such as "the viscosity of the rubber dissolution liquid is too high (poor coating properties)" or "the quality of the rubber dissolution liquid varies." *For more details, please download the PDF or feel free to contact us. TEL 048-723-8821 e-mail kazuhiro.arai@chuo-jushi.com

• Rubber

General raw rubber (synthetic rubber, natural rubber) is in the form of a block called a "bale" (approximately 35 kg). If this block is directly placed into the dissolution kettle, it can cause accidents or malfunctions, so it must be passed through a "roller machine" to be stretched into a thin sheet before proceeding to the dissolution process. Our company’s strength lies in our ability to handle both the "kneading" and "dissolution" of rubber together. We can propose improvements from the kneading process for issues such as "the viscosity of the rubber dissolution liquid is too high (poor coating properties)" or "the quality of the rubber dissolution liquid varies." *For more details, please download the PDF or feel free to contact us. TEL 048-723-8821 e-mail kazuhiro.arai@chuo-jushi.com

• Rubber