公开(公告)号：US11767410B2

公开(公告)日：2023-09-26

申请号：US16823721

申请日：2020-03-19

Applicant: AGC Inc.

Inventor： Keisuke Yagi

IPC: C08K3/36 ,  B32B7/12 ,  B32B15/06 ,  C08F214/26 ,  C08K3/22

CPC classification number: C08K3/36 ,  B32B7/12 ,  B32B15/06 ,  C08F214/267 ,  C08K3/22 ,  C08F2800/10 ,  C08K2003/222 ,  C08K2003/2241 ,  C08K2201/006

Abstract: To provide a fluorinated copolymer composition capable of forming a crosslinked rubber having favorable rubber properties and excellent metal adhesion, and a metal rubber laminate using the crosslinked rubber.
A fluorinated copolymer composition comprising a copolymer having units based on tetrafluoroethylene and units based on propylene, a copolymer having units based on tetrafluoroethylene and units based on a perfluoro(alkyl vinyl ether), or a copolymer having units based on hexafluoropropylene and units based on vinylidene fluoride, hydrophilic silica, and an acid acceptor.

公开(公告)号：US11365299B2

公开(公告)日：2022-06-21

申请号：US16822170

申请日：2020-03-18

Applicant: AGC Inc.

Inventor： Keisuke Yagi

IPC: C08J5/18 ,  B32B25/04 ,  B32B25/14 ,  B32B37/14 ,  C08J3/24 ,  C08L9/02 ,  C08L23/08 ,  C08L23/16 ,  C08L27/18 ,  C08L33/06 ,  C08L83/04

Abstract: To provide a laminate excellent in alkali resistance and interlaminar strength at high temperature, and a process for producing the laminate. A process for producing a laminate, comprising producing a non-crosslinked laminate having a layer of a first composition containing a copolymer having fluorine atoms and a layer of a second composition containing a non-fluorinated elastic polymer, and crosslinking the first composition and the second composition to produce a laminate having a first layer formed of a crosslinked product of the first composition and a second layer formed of a crosslinked product of the second composition, wherein when the first composition and the second composition contains a common crosslinking aid, the absolute value of the crosslinking rate difference between the first composition and the second composition is at most 0.30.

公开(公告)号：US11306167B2

公开(公告)日：2022-04-19

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: C08F214/26 ,  C08F214/22 ,  C08F214/28 ,  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：US10787531B2

公开(公告)日：2020-09-29

申请号：US15880647

申请日：2018-01-26

Applicant: AGC Inc.

Inventor： Keisuke Yagi ,  Takehiro Kose ,  Hiroki Nagai ,  Satoko Yasuda

IPC: C08F2/38 ,  C08F2/26 ,  C08F210/06 ,  C08F214/26 ,  C08K3/04 ,  C08K5/14 ,  C08K13/02 ,  C08K5/3492 ,  C08K5/00

Abstract: To provide a fluorinated elastic copolymer capable of obtaining a crosslinked rubber which is excellent in tensile strength and has a low compression set under high temperature conditions; a method for producing such a fluorinated elastic copolymer; a crosslinked rubber; and a method for producing such a crosslinked rubber. A fluorinated elastic copolymer having structural units based, respectively, on monomers (a), (b) and (c), and further having iodine atoms. Monomer (a): at least one member selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, chlorotrifluoroethylene and perfluoro(alkyl vinyl ether). Monomer (b): at least one member selected from the group consisting of compounds represented by formula (I): CR1R2═CR3—R4—CR5═CR6R7 (I) (wherein R1, R2, R3, R5, R6 and R7 are each independently a hydrogen atom, a fluorine atom or a methyl group; and R4 is a C1-10 perfluoroalkylene group which may have an etheric oxygen atom inserted between carbon atoms). Monomer (c): at least one member selected from the group consisting of ethylene and propylene.

公开(公告)号：US20200216636A1

公开(公告)日：2020-07-09

申请号：US16823721

申请日：2020-03-19

Applicant: AGC Inc.

Inventor： Keisuke Yagi

IPC: C08K3/36 ,  C08F214/26 ,  C08K3/22 ,  B32B15/06 ,  B32B7/12

Abstract: To provide a fluorinated copolymer composition capable of forming a crosslinked rubber having favorable rubber properties and excellent metal adhesion, and a metal rubber laminate using the crosslinked rubber.A fluorinated copolymer composition comprising a copolymer having units based on tetrafluoroethylene and units based on propylene, a copolymer having units based on tetrafluoroethylene and units based on a perfluoro(alkyl vinyl ether), or a copolymer having units based on hexafluoropropylene and units based on vinylidene fluoride, hydrophilic silica, and an acid acceptor.

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.