Title:
COPOLYMER, METHOD FOR PRODUCING COPOLYMER, AND RESIN COMPOSITION CONTAINING COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2024/080292
Kind Code:
A1
Abstract:
Provided are a copolymer capable of suppressing discoloration even after heating and a method for producing the same. A copolymer containing a structural unit (A) derived from 1,1-dicyanoethylene and a structural unit (B) derived from a compound represented by general formula (I), CH2=CR1R2 (I), wherein the copolymer is characterized by containing the following four triplet structures (U-1) to (U-4) composed of the structural unit (A) and the structural unit (B), (A)-(A)-(A)…(U-1), (A)-(A)-(B)…(U-2), (B)-(A)-(A)…(U-3), (B)-(A)-(B)…(U-4), and by the total content of (U-2) and (U-3) in the total amount of the four triplet structures being 5.5 mol% or less.
Inventors:
INATOMI ATSUSHI (JP)
IISHIBA KAZUKI (JP)
NAKAHARA ATSUHIRO (JP)
IISHIBA KAZUKI (JP)
NAKAHARA ATSUHIRO (JP)
Application Number:
PCT/JP2023/036832
Publication Date:
April 18, 2024
Filing Date:
October 11, 2023
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08F220/42; H01B5/14; H01G4/32
Foreign References:
| US2615868A | 1952-10-28 | |||
| US2615874A | 1952-10-28 | |||
| US2615865A | 1952-10-28 | |||
| US2615870A | 1952-10-28 | |||
| JPH01103614A | 1989-04-20 | |||
| US2615877A | 1952-10-28 | |||
| US2615869A | 1952-10-28 | |||
| JPH03287612A | 1991-12-18 | |||
| US5210165A | 1993-05-11 | |||
| JPS63278551A | 1988-11-16 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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