クレハ List of Products and Services

"KRECA" is a petroleum pitch-based carbon fiber that has received high praise from the global industrial sector for its high purity, flexibility, and wide range of lineup. It contains few impurities, has excellent oxidation resistance, and boasts a long lifespan. It has a proven track record of applications in a wide range of uses, from high-temperature furnace insulation materials to various sliding compounds. Additionally, our company has established a consistent manufacturing system from pitch raw materials to final products (chopped, felt, insulation materials). 【Features】 ■ Low impurities and high purity ■ Consistent manufacturing from raw materials to products ■ Flexible and stable production system that achieves high quality ■ Variations that meet diverse needs ■ Certification for quality management and environmental management systems *For more details, please refer to the PDF materials or feel free to contact us.

• fiber

Effects of applying this technology: - It is expected to improve lightweight design and durability as an alternative to glass and protective films used in building materials such as roofs and exterior walls, as well as road materials like signs and sound barriers. - By using it for glass in construction machinery and site equipment, as well as for viewing windows in chemical plant piping and tanks, improvements in visibility and safety are anticipated. - It has excellent flame retardancy, making it suitable for use in the electrical, electronic, construction, and transportation fields where flame resistance is required. - Despite being a fluororesin, it has moldability comparable to general-purpose plastics, allowing it to be formed into films, sheets, tubes, and pipes.

• Engineering Plastics

"KF Piezo" is a polymer ferroelectric material that Kureha successfully industrialized for the first time in the world. It is created by film-forming and stretching "KF Polymer" under high voltage, resulting in a unique material that exhibits remarkable piezoelectric and pyroelectric properties in its molecular structure. The characteristic of generating electricity when subjected to force, deformation, or heat is widely utilized in various sensors. It has also been installed in JAXA's space dust sensor on the solar sail spacecraft "IKAROS." 【Features】 ■ Being a polymer film, it is thin, lightweight, and highly flexible. ■ Compared to inorganic piezoelectric materials, it has a low dielectric constant, making it suitable for sensor applications. ■ Its acoustic impedance is close to that of water, allowing for applications in hydrophones and ultrasonic probes. *For more details, please download the PDF or contact us.

• Other polymer materials
• Sensors
• Engineering Plastics

"Kureha KF Polymer" is a polyvinylidene fluoride (PVDF) resin that our company began industrial production of in 1970. It is a balanced engineering plastic that possesses excellent properties as a fluororesin and moldability comparable to general-purpose resins. It has been used in various fields, particularly in heat resistance, corrosion resistance, and weather resistance, including electronic materials, fishing lines, guitar strings, and violin strings. Its applications are expanding into advanced technology fields, such as binders for lithium-ion battery electrodes and water treatment membranes. **Features** - Superior secondary processing capabilities compared to other fluororesins, including molding (injection molding, extrusion), powder coating, and welding. - Excellent chemical resistance, making it suitable for piping materials in chemical plants. - High mechanical strength, with excellent wear resistance and impact resistance. - Excellent heat resistance and weather resistance, making it suitable for various outdoor cover films. - Electrochemical stability over a wide potential range, among others. *For more details, please download the PDF or contact us.*

• plastic

"Kureha spherical activated carbon BAC (Back)" is a spherical activated carbon made from petroleum pitch. Due to its high bulk density, it can be packed at high density, demonstrating greater adsorption capacity compared to coal-based activated carbon or coconut shell carbon of the same volume. Additionally, its high fluidity allows the activated carbon to spread evenly even in complex-shaped containers, and its high strength and excellent abrasion resistance help prevent contamination (mixing) derived from the activated carbon. 【Features】 ■ High packing density ■ High fluidity ■ Low dust ■ High purity ■ High strength and abrasion resistance ■ Sharp particle size distribution *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

"Kureha KF Polymer" is a high-quality polyvinylidene fluoride (PVDF) resin with various features. Since its adoption in practical lithium-ion batteries (LiB), it has a proven track record of many applications. It has high adhesion, chemical resistance, and excellent electrochemical stability, making it suitable for LiB applications. [Features] - Adopted not only for consumer applications but also for automotive, industrial, and stationary LiBs. - Various variations are available, including high molecular weight, functional group modifications, and solution types. *For more details, please download the PDF or contact us.

• Other polymer materials
• plastic