公开(公告)号：US20250101160A1

公开(公告)日：2025-03-27

申请号：US18730102

申请日：2023-02-02

Applicant: POLYPLASTICS CO., LTD.

Inventor： Yu MIYAGI ,  Itsuki SAITO

IPC: C08F232/04 ,  C08F4/659 ,  C08F4/6592 ,  C08F210/14

Abstract: A cyclic olefin copolymer that is a copolymer of a cyclic olefin monomer and an α-olefin having 3 or more and 20 or less carbon atoms, which has excellent tensile strength and breaking strain, and a method for producing the cyclic olefin copolymer. In the copolymer, the amount of structural units derived from the α-olefin is 10 mol % or more and 50 mol % or less relative to the entire structural units, and in a one-dimensional scattering curve with respect to the scattering vector q of small angle X-ray scattering for the cyclic olefin copolymer, a value obtained by dividing the half value width of a primary peak by the q value of the peak top thereof is in the range of 0.15 to 0.45.