Cyclic olefin copolymer (COC) production capacity is concentrated in Japanese companies and is still in the early stages of development domestically.

cyclic olefin copolymer (coc) is a non-crystalline transparent copolymer with a cyclic olefin structure formed by the copolymerization of bicycloconene (norbornene) monomer and ethylene monomer under the action of metallocene catalyst. it is a new type of high-performance polymer. value-added thermoplastic engineering plastics with high transparency, high heat resistance, low density, low dielectric constant, low…