4,4'-bis(1,3-dioxo-1,3-dihydroisobenzofuran-5-ylcarbonyloxy)biphenyl

As an innovative high-tech enterprise focusing on the research, development, and production of advanced functional polyimide monomers, dedicated to promoting the global polyimide materials industry development, Chinatechem has been committed to the R&D and industrialization of high-performance polyimide monomers for twenty years, striving to provide globally competitive integrated solutions and professional services to customers worldwide.

The company has been honored with numerous national and regional awards and recognition.

After twenty years of rapid development and transformation, Chinatechem has evolved into a group enterprise with multiple subsidiaries, and is currently preparing for listing on the Science and Technology Innovation Board.

Focusing on advanced functional polyimide monomers, Chinatechem has assembled a high-end R&D and production management team composed of doctors and masters from top domestic and international universities, and experienced industry engineers. Meanwhile, we collaborate deeply with renowned domestic universities, jointly establishing industry-university-research laboratories to promote technological innovation and achievement transformation.

With our Tianjin headquarters as the core, Chinatechem has established multiple specialized R&D centers equipped with precision testing equipment and digital management systems. We have also developed wholly-owned continuous production bases in Shaanxi and Jilin provinces, achieving lean quality control throughout the entire process from research to manufacturing.

With excellent product quality and stable supply capabilities, our products are exported to major global markets including Asia, North America, and Europe. We have established deep strategic partnerships with numerous Fortune 500 companies, becoming one of the core suppliers in the global new materials industry chain and establishing "CHINATECH" as a premium brand image in the international market.