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.

公开(公告)号：US20250129192A1

公开(公告)日：2025-04-24

申请号：US18730260

申请日：2023-02-02

Applicant: POLYPLASTICS CO., LTD.

Inventor： Yu MIYAGI ,  Tatsuhiko NAGAO

IPC: C08F232/08 ,  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 the relaxation time T1ρ of a hydrogen nucleus by solid-state NMR measurement for the cyclic olefin copolymer, the average value of the relaxation time corresponding to each hydrogen in the cyclic olefin copolymer is in the range of 4.5 to 5.5 msec, and the difference between the maximum value and the minimum value of the relaxation time is in the range of 1.0 to 3.0 msec.