Title:
FLUOROCOPOLYMER, METHOD FOR PRODUCING FLUOROCOPOLYMER, FLUOROCOPOLYMER COMPOSITION, AND CROSSLINKED RUBBER ARTICLE
Document Type and Number:
WIPO Patent Application WO/2022/220180
Kind Code:
A1
Abstract:
Provided are: a fluorocopolymer from which crosslinked rubber articles having excellent releasability can be produced; a method for producing the fluorocopolymer; a fluorocopolymer composition; and a crosslinked rubber article. This fluorocopolymer comprises units based on tetrafluoroethylene, units based on a perfluoro(alkyl vinyl ether), units based on a monomer having a fluorine atom and two or more polymerizable unsaturated bonds, and units based on a monomer having a nitrile group and a fluorine atom, wherein G'0.3/G'0.03 is 1.00-1.45, in which G'0.3 is the storage modulus of the fluorocopolymer at an angular frequency of 0.3 rad/s and G'0.03 is the storage modulus of the fluorocopolymer at an angular frequency of 0.03 rad/s, the storage moduli being determined through a dynamic viscoelasticity measurement at 140°C.
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Inventors:
HATTORI YUKIKO (JP)
KAWAI TSUYOSHI (JP)
KAWAI TSUYOSHI (JP)
Application Number:
PCT/JP2022/017143
Publication Date:
October 20, 2022
Filing Date:
April 06, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C08F214/26; C08K5/17; C08L27/18
Domestic Patent References:
| WO2021085423A1 | 2021-05-06 | |||
| WO2020114972A1 | 2020-06-11 | |||
| WO2010082633A1 | 2010-07-22 |
Foreign References:
| JP2008031195A | 2008-02-14 | |||
| JP2019500469A | 2019-01-10 | |||
| JP2009529070A | 2009-08-13 | |||
| JPH11510495A | 1999-09-14 | |||
| JPH06263952A | 1994-09-20 | |||
| JP5833657B2 | 2015-12-16 | |||
| JP2021066993A | 2021-04-30 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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