KGK 共同技研化学 List of Products and Services

We will exhibit the following products at the 39th Nepcon Japan from January 22 to January 24 (Tokyo Big Sight): 1. Electroless plating "Metapian" 2. Metapian + LCP 3. Heat-resistant molecular gradient film "200Y" and heat-resistant adhesive film "SB Sheet" 4. Dicing tape "RMGU" 5. Back grind tape "214D" 6. Tape for die bonding and assembly processes "170 Series"

• Composite Materials

This is a comprehensive catalog focused primarily on residential equipment, home appliances, electronic devices, automobiles, and transportation equipment.

• Adhesive tape
• Composite Materials
• Engineering Plastics

This is a comprehensive catalog focused primarily on home appliances, electronic devices, automobiles, and transportation equipment.

• Touch Panel
• plastic
• Adhesive tape

This is a comprehensive catalog primarily focused on building materials.

• Adhesive tape
• Other polymer materials
• Other packaging materials

Exhibition Name: 12th International Car Electronics Technology Exhibition https://www.car-ele.jp/ja-jp.html 【Exhibited Products List】 - Insulating film for 5GFPC FCCL LCP liquid crystal polymer film "SARAS"

• Engineering Plastics
• Other semiconductors
• Printed Circuit Board

Exhibition Name: Joining and Bonding EXPO http://www.joining-expo.jp/ 【List of Exhibited Products】 - Interlayer Science Evolution Strong Adhesive Molecular Gradient Membrane Double-Sided Tape - Remarkable Shock Absorption, Strong Adhesion, Transparency Makerling Gel - Unique Casting Method Liquid Crystal Polymer Film "SARAS" - Instant Adhesive Tape "IAT" - Mechanical Fiber Tape - Heat Dissipation "Tathaga," Heat Storage "FREY," Heat Equalization "FOX"

• Adhesive tape
• Engineering Plastics
• Electrical equipment parts

Evolution of Interlayer Science = Stress Gradient Three consecutive years of receiving the Japan Invention Award - Award for Inventive Contributions Molecular gradient film is a groundbreaking double-sided tape that delves into interlayer science. By contributing to adhesion at the interface with the substrate across the entire thickness of the tape, it demonstrates performance 1.5 to 2 times greater compared to conventional tapes.

• Adhesive tape
• plastic
• Interior parts

KGK Joint Research Chemical's three-layer simultaneous coating technology (molecular gradient film coating technology) is a special lamination film formation technique that enhances intermolecular attraction by gradient film formation (stepwise film formation) from the center layer to the outer layer using the same or different types of resin solutions, creating a very strong bond. By using this technology to produce double-sided tape, we can achieve performance that was difficult with conventional double-sided tapes (such as non-woven fabric and film substrate double-sided tapes). Molecular gradient film double-sided tape and adhesive films are designed to maximize bonding with a special adhesive at the interface of the adhered material (the outer adhesive layer), where the total thickness of the adhesive (which depends on adhesive strength) is reinforced. Additionally, they can relieve stress from warping of the adhered material and external impacts or load stress through the molecular weight gradient between layers. In other words, the entire thickness of the tape contributes complexly and powerfully to the characteristics of the polymer and the adhesion to the interface of the adhered material, allowing for 1.5 to 2 times the adhesive strength, heat resistance, and viscoelasticity compared to conventional double-sided tapes. *For more details, please download the PDF or contact us.

• plastic
• Adhesive tape
• Interior parts

The "200Y Series" is an ultra-thin acrylic-based adhesive sheet that applies the concept of conventional molecular gradient membranes. It securely holds substrates even in a 260°C environment, demonstrating excellent adhesive performance. It also excels in die-cutting properties. 【Features】 ■ Ultra-thin acrylic-based adhesive sheet ■ Holds substrates securely even in a 260°C environment ■ Demonstrates excellent adhesive performance ■ Excellent die-cutting properties *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

Kyoto Giken Chemical Co., Ltd. has developed the "Molecular Gradient Membrane" technology, which enables the creation of a waterproof, narrow-width strong adhesive tape, the 'Molecular Gradient Membrane Waterproof Tape (300Z Series)', that was not achievable with conventional double-sided tape. Since it does not use a foam substrate, there are no concerns about water infiltration due to bubbles, and it excels in water resistance. Additionally, it demonstrates excellent performance not only on metals but also on various resins. Available in a diverse thickness range of 0.15 to 0.3 mm, it allows for a slim design. 【Features】 ■ Does not use a foam substrate ■ Excellent water resistance without concerns about water infiltration due to bubbles ■ Demonstrates good performance on various resins as well as metals ■ Excellent die-cutting properties *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts
• Adhesive tape

●Features 1. Excellent compliance and adhesive properties are achieved for three-dimensional deformation and stretchable materials. 2. Demonstrates good adhesion performance not only to metal but also to various resins. 3. Provides sharp edge definition with minimal burrs for punching ultra-fine and ultra-small shapes in the micrometer range. 4. Exhibits high holding power even at elevated temperatures. 5. Has chemical resistance to acids and alkalis.

• switch
• Other polymer materials
• Adhesive tape

A narrow bezel bonding tape for automotive display components that applies the technology of molecular gradient film double-sided tape, which has 1.5 to 2.0 times the adhesive strength compared to conventional double-sided tape!

• Other polymer materials
• Adhesive tape
• Electrical equipment parts

The adhesive design of our unique product series "Molecular Gradient Membrane Double-Sided Tape" is applied to an acrylic foam substrate. It has strong bonding strength, high water resistance, chemical resistance, and oil resistance.

• Interior parts
• Composite Materials
• Adhesive tape

●What is Metapian? A high-performance electroless plating primer solution that excels in long-term stability without the use of dispersants. It enables uniform plating formation on non-conductive materials such as resins and ceramics.

• Chemicals

■Features 1. Based on acrylic resin, it has heat resistance and insulation properties. 2. It has no tack at room temperature, making it easy to handle. 3. High tack is developed upon heating, allowing for adhesion. 4. It is flexible and stretchable, capable of conforming to uneven surfaces.

• Sensors
• Electrical equipment parts
• plastic

"LMGU" has developed a UV-CIPG method product that applies a liquid gasket to the work surface to achieve stable sealing functions in a short time, and then cures it with ultraviolet light before assembly. It features automatic application via a program and on-site curing with UV irradiation, providing high flexibility, ease of compression, and adaptability to housing distortions, resulting in excellent waterproof and dustproof performance.

• Engineering Plastics
• glue
• LCD display

KGK Co., Ltd. has developed a double-sided tape that strongly adheres to silicone rubber using its proprietary "molecular gradient membrane" technology, which was not achievable with conventional double-sided tapes. One side (silicone-based adhesive): Utilizes a silicone-based adhesive that adheres well to silicone rubber. Other side (acrylic-based adhesive): An acrylic-based adhesive that exhibits excellent adhesion to substrates such as metal plates and plastic sheets.

• Other polymer materials
• Adhesive tape
• Other FPD related

This is an adhesive sheet that adds necessary functions according to your requirements as a display material. It maintains high transparency while providing sufficient light diffusion effects. The Haze can be adjusted from 25% to as strong as 90% according to your needs. Haze can be customized to meet your specifications. Therefore, it is possible to enhance the performance of the display to be of higher quality and functionality.

• Other polymer materials
• Adhesive tape
• LCD display

This is a UV-curable liquid optical elastomer suitable for bonding optical components such as displays.

• glue
• plastic
• LCD display

It is a very soft gel sheet made from silicone. It demonstrates stable performance in applications such as shock absorption, vibration isolation, and bonding optical components.

• Other polymer materials
• Adhesive tape
• Organic EL

High transparency, highly reliable silicone resin-based adhesive gel sheet. Optically excellent double-sided tape with shock absorption and relief, heat resistance, reliability, and prevention of metal film corrosion.

• Organic EL
• Other polymer materials
• Adhesive tape

Curve panels, flexible displays, and OCA for 3D/2.5D displays. It excels in conformability to curves and is suitable for lamination with touch sensors, cover glass, and polarizers.

• Other polymer materials
• Organic EL
• Adhesive tape

[Features] This document introduces the acrylic gel automotive display optical bonding tape "Makuringel MGSRTD," which is produced using unique technology from Kyodo Giken Chemical.

• Electrical equipment parts
• Adhesive tape
• LCD display

The "Blister-Resistant Acrylic Gel Optical Bonding Tape" is an optical bonding tape developed with our unique technology, featuring high transparency and strong adhesion. By using a transparent adhesive sheet to bond the resin sheet and the display, it suppresses blisters (bubbles) caused by resin warping and outgassing. 【Features】 ■ High transparency ■ High adhesion ■ High stickiness ■ Suppresses resin warping and emitted components *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• glue
• Adhesive tape

The "MGU Series" is a method for laminating optical panels using a transparent adhesive sheet and UV equipment. By irradiating ultraviolet light after lamination, it addresses the challenges of adhesion to the substrate and gap absorption that arise during the lamination of optical panels. Furthermore, it can be laminated in the atmosphere without vacuum or pressure, eliminating the need for vacuum equipment, panel lamination equipment, and pressure equipment that were necessary with sheet or liquid methods. 【Features】 ■ UV secondary curing method ■ Can be laminated in the atmosphere without vacuum or pressure ■ Solves issues of adhesion and gap absorption *For more details, please refer to the PDF document or feel free to contact us. ★If you would like a sample, please use the inquiry form and specify that you would like a sample.

• glue
• Adhesive tape

High transparent double-sided tape (OCA) for flexible displays, excellent in surface conformity and bending durability!

• Organic EL
• plastic
• Adhesive tape

After bonding, it becomes tack-free due to UV secondary crosslinking. It excels in gap absorption.

• Touch Panel
• Engineering Plastics
• LCD display

A medical hydrogel with micro-adhesiveness that excels in repeated use and re-stickability. It has excellent shock absorption and conductivity, and is gentle on the skin.

• Other polymer materials

"LCP" is a product made from a melt-processable liquid crystal aromatic polyester, which exhibits liquid crystalline properties with a regular arrangement of molecular chains in the molten state. It has a melting point of 280°C and features low moisture absorption, high gas barrier properties, high insulation, dimensional stability, three-dimensional stability, and is a flexible high-performance polymer film. 【Features】 ■ Excellent heat resistance ■ Insulating substrate with thermal conductivity ■ Low moisture absorption (low dielectric) ■ Thermoformable at 250°C ■ Gas barrier properties ■ Anisotropic *For more details, please refer to the PDF document or feel free to contact us.

• others
• Other polymer materials

**Product** 5G LCP FCCL "SAR25C12" **What is SAR25C12** As the frequency increases, the amount of information that can be transmitted per unit time can be accelerated and made larger. For next-generation high-speed communication, it is effective that the dielectric loss decreases as the dielectric constant and dielectric loss tangent of the FPC material decrease. In addition to these excellent electrical characteristics of low dielectric constant and low dielectric loss tangent, LCP, which also has low moisture absorption, heat resistance, and a coefficient of thermal expansion comparable to metals, as well as moldability, is an essential resin material for next-generation high-speed communication. The liquid crystal polymer film flexible copper-clad laminate "SAR25C12" is a groundbreaking product that leverages its excellent compatibility with copper foil for insulation film applications in flexible printed circuits (FPC). **Features of LCP** - Excellent electrical properties at high frequencies - Excellent heat resistance - Insulating substrate with thermal conductivity - Low moisture absorption (low dielectric) - Thermoformability at 250°C - Gas barrier properties - Anisotropic *For more details, please refer to the PDF document or feel free to contact us.*

• others
• Other polymer materials

【Product】 SAR25C12 *This is a material coated with liquid crystal polymer on copper foil. The liquid crystal polymer film flexible copper-clad laminate "SAR25C12" is an innovative product that leverages its excellent compatibility with copper foil for insulation film applications in flexible printed circuits (FPC).

• Composite Materials
• Other semiconductors
• Engineering Plastics

KGK LCP "SARAS" is a harmony film characterized by "rigidity like metal and softness like rubber." By using it as a diaphragm for acoustic components, it can reproduce a dense and speedy sound, while also delivering high sensitivity, low distortion, and a high-quality sound without any peculiarities.

• Engineering Plastics
• Ultrasonic Oscillator
• High frequency/microwave parts

Polyarnol is an amorphous film composed of divalent phenol and phthalic acid, carboxylic acid.

• High frequency/microwave parts
• Engineering Plastics
• Electrical equipment parts

"FREY" is a compound adhesive sheet made by mixing a heat-retaining filler with an acrylic base. It maintains the sheet temperature at a desired temperature for a certain period of time. Developed to address heat generated by IC chips in electronic devices due to the high performance of information electronic equipment, its applications are diverse, including "preventing road freezing," "clothing such as winter wear," and "bedding such as futons." [Features] ■ Maintains sheet temperature at a desired temperature for a certain period of time ■ Maintenance time and temperature can be adjusted through formulation design *For more details, please refer to the PDF document or feel free to contact us.

• others

It is a thermal management sheet filled with heat storage material in the bubbles of a metallic porous body.

• Resistors
• Composite Materials
• Electrical equipment parts

Heat storage and temperature equalization sheet "FREY" "FOX" 【Features】 - Assists insulation by combining with insulating materials - Suppresses temperature rise more effectively than using insulating materials alone

• Composite Materials
• Other electronic parts
• Adhesive tape

It is a heat storage sheet that has been impregnated with heat storage material in non-woven fabric. It is an insulation support sheet effective for heat shielding in summer and heat retention in winter. It is a support material for insulation.

• fiber
• Interior parts
• Composite Materials

It is an insulation sheet made by laminating a vacuum insulation panel and a heat storage sheet. It is expected to insulate the outside air and maintain the internal temperature through heat storage.

• Composite Materials
• Adhesive tape
• Engine parts

High adhesive strength Durable performance that maintains the characteristics of aluminum foil, with excellent electromagnetic wave shielding properties and thermal conductivity.

• EMC countermeasure products
• Interior parts
• aluminum

This is an adhesive tape coated on both sides with an acrylic-based adhesive on soft aluminum foil. It uses a special conductive adhesive that offers excellent initial tack, and since it uses flexible soft aluminum foil as the substrate, it conforms well to curved surfaces. Due to the use of aluminum foil, it also has excellent thermal conductivity.

• EMC countermeasure products
• Composite Materials
• Electrical equipment parts

- Being non-silicone based, it does not contain volatile components of "siloxane," preventing contact inhibition of electronic components and contamination of glass. - It uses excellent fillers as a filler, resulting in superior thermal conductivity. - It has excellent reworkability. - Due to its soft material, it conforms well to areas with significant irregularities. - It has excellent adhesion, reducing contact thermal resistance. - It excels in stress relief, reducing pressure on electronic components after embedding. - It is highly durable, demonstrating stable electrical insulation and thermal conductivity even after prolonged use.

• Other semiconductors
• Electrical equipment parts
• Composite Materials

High reliability adhesive strength Resistance to rebound, curvature conformity High dimensional stability and good machinability

• Adhesive tape
• Other electronic parts
• Other polymer materials

This is a standard double-sided tape with basic adhesive performance. It exhibits good performance not only on metals but also on various resins. It has excellent resistance to rebound.

• Secondary Cells/Batteries
• Adhesive tape
• Interior parts

This is a standard double-sided tape with basic adhesive performance on foam substrates. It demonstrates good performance not only on metals but also on various resins. It excels in adhesion to rough surfaces, has excellent holding power, and offers superior waterproofing.

• Interior parts
• Adhesive tape
• Other polymer materials

Heat-resistant tape made from half-dip heat-resistant polyimide film. It has excellent adhesive residue properties on glass and semiconductors. (171) Grades with light release properties (171) and strong adhesion (172, 174) are available.

• Printed Circuit Board
• Engine parts
• Engineering Plastics