公开(公告)号：US20210163648A1

公开(公告)日：2021-06-03

申请号：US17173455

申请日：2021-02-11

Applicant: AGC Inc.

Inventor： Satoko YASUDA ,  Takehiro KOSE ,  Yukiko HATTORI ,  Toshikazu YONEDA

IPC: C08F214/26 ,  C08F214/22 ,  C08F214/28 ,  C08F214/16 ,  C08F236/20 ,  C08L23/12

Abstract: To provide a fluorinated copolymer excellent in low temperature properties and crosslinking property as a fluororubber, and a method for producing it.
A fluorinated copolymer which has units based on tetrafluoroethylene, units based on propylene and units based on a compound represented by the following formula 1, and which has either one or both of iodine atoms and bromine atoms: CF2═CFO(Rf1O)nRf2  formula 1 wherein Rf1 is a C1-3 perfluoroalkylene group, Rf2 is a C1-6 perfluoroalkyl group, n is an integer of from 1 to 4, and in a case where n is from 2 to 4, a plurality of Rf1 may be the same or different.

公开(公告)号：US20200255567A1

公开(公告)日：2020-08-13

申请号：US16861276

申请日：2020-04-29

Applicant: AGC Inc.

Inventor： Satoko YASUDA ,  Keisuke Yagi ,  Takehiro Kose ,  Yukiko Hattori ,  Toshikazu Yoneda

IPC: C08F214/28 ,  C08F214/22 ,  C08F214/26 ,  C08F220/06 ,  C08F283/00

Abstract: To provide a fluorinated elastic copolymer excellent in adhesion, processability, mechanical properties, heat resistance and chemical resistance.A fluorinated elastic copolymer having units based on a monomer (a), units based on a monomer (b) and optionally units based on a monomer (c), which has an iodine atom bonded to a terminal of a molecular chain and the unit based on the monomer (b) adjacent to the iodine atom, and which has a proportion of the units based on the monomer (b) of from 0.09 to 2.0 mol % to all units. Monomer (a): monomer selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, chlorotrifluoroethylene, a perfluoro(alkyl vinyl ether) and 2,3,3,3-tetrafluoropropene; monomer (b): a monomer having at least one type of functional group selected from the group consisting of an epoxy group, a hydroxy group, a carbonyl group-containing group and an isocyanate group; monomer (c): a monomer selected from the group consisting of ethylene and propylene.

公开(公告)号：US20190051429A1

公开(公告)日：2019-02-14

申请号：US16164045

申请日：2018-10-18

Applicant: AGC Inc.

Inventor： Satoko YASUDA

IPC: H01B3/44 ,  C08F214/18 ,  B60R16/02 ,  C08L27/12 ,  H01B7/18

Abstract: To provide a covered electric wire using a resin composition which is excellent in flexibility and oil resistance, which is less susceptible to thermal discoloration and which is excellent in moldability. The covered electric wire comprises a core wire and a covering material made of a composition applied around the core wire, wherein the covering material is a melt-moldable resin composition, and, of the resin composition, the volume change after being immersed in an automatic transmission fluid at 165° C. for 70 hours is at most 10%, the flexural modulus is at most 200 MPa, the rate of change in tensile elongation after 2,000 hours of thermal exposure test in air at 200° C. is at most 30%, and the melting point is at least 215° C.