公开(公告)号：US20250145747A1

公开(公告)日：2025-05-08

申请号：US19013540

申请日：2025-01-08

Applicant: AGC Inc.

Inventor： Yuki ORITO ,  Shun WATANUKI

IPC: C08F214/26 ,  C08F2/06 ,  C08F2/18

Abstract: A method for producing a fluorine-containing copolymer, the method including performing polymerization using a monomer containing tetrafluoroethylene in a polymerization medium containing at least one polymerization solvent A selected from the group consisting of compounds represented by the following Formulas (1) to (3). The description of Formulas (1) to (3) is omitted.

公开(公告)号：US20250136731A1

公开(公告)日：2025-05-01

申请号：US19004627

申请日：2024-12-30

Applicant: AGC Inc.

Inventor： Tsukasa USUDA ,  Shun WATANUKI ,  Shinya TAJIMA

IPC: C08F214/18 ,  C08J3/24

Abstract: Provided are a cross-linked fluorine-containing copolymer product having both excellent short-term and long-term heat resistance, and a fluorine-containing copolymer composition that can be used to preferably produce such a cross-linked product. A cross-linked fluorine-containing copolymer product comprising an indole ring, and a fluorine-containing copolymer composition comprising: a fluorine-containing copolymer comprising a constituent unit (A) derived from tetrafluoroethylene, a constituent unit (B) derived from at least either of perfluoro (alkyl vinyl ether) and perfluoro (butenyl vinyl ether), and a constituent unit (C) derived from a fluorine-containing compound having a carbon-carbon double bond and a —C(═O)CH2— group; and a compound (D) having a specific structure.

公开(公告)号：US20250145744A1

公开(公告)日：2025-05-08

申请号：US19014321

申请日：2025-01-09

Applicant: AGC INC.

Inventor： Yuki ORITO ,  Shun WATANUKI

IPC: C08F14/22

Abstract: A method for producing a fluorine-containing polymer, the method including performing polymerization using a monomer containing vinylidene fluoride in a polymerization medium containing at least one polymerization solvent A selected from the group consisting of compounds represented by the following Formula (1) and Formula (2). The description of Formulas (1) to (2) is omitted.

公开(公告)号：US20230357467A1

公开(公告)日：2023-11-09

申请号：US18347932

申请日：2023-07-06

Applicant: AGC INC.

Inventor： Yuki ORITO ,  Shun WATANUKI

IPC: C08F210/02 ,  C08F2/38 ,  C08F214/26 ,  C08F2/06

CPC classification number: C08F214/26 ,  C08F2/06 ,  C08F2/38 ,  C08F210/02

Abstract: Provided is a method of producing a fluorine-containing copolymer, the method including carrying out solution polymerization using monomers including ethylene and tetrafluoroethylene, in a polymerization medium containing at least one polymerization solvent A selected from the group consisting of compounds represented by Formula 1 to Formula 4. Also provided is a fluorine-containing copolymer. Descriptions for Formula 1 to Formula 4 are omitted.

公开(公告)号：US20250136733A1

公开(公告)日：2025-05-01

申请号：US19004611

申请日：2024-12-30

Applicant: AGC Inc.

Inventor： Tsukasa USUDA ,  Shun WATANUKI ,  Shinya TAJIMA

IPC: C08F214/26 ,  C07C45/00 ,  C07C45/82 ,  C08K5/24

Abstract: Provided are a fluorine-containing compound suitable to produce rubber having both excellent short-term and long-term heat resistance, a fluorine-containing copolymer using such a compound, and a fluorine-containing copolymer composition. A fluorine-containing compound represented by formula (1) below, a fluorine-containing copolymer using such a compound, and a fluorine-containing copolymer composition. In formula (1), R1 to R3 are each independently a hydrogen atom or a fluorine atom; R4 is a hydrogen atom, a fluorine atom, or a C1-8 monovalent organic group free from a carbonyl group; Z is an oxygen atom, a sulfur atom, or —N(R5)— where R5 is a hydrogen atom or a C1-4 monovalent organic group; X is a single bond or a difluoromethylene group; Y1 to Y4 are each independently a fluorine atom or a trifluoromethyl group; and Q is a C1-8 perfluoroalkylene group optionally containing an etheric oxygen atom.

公开(公告)号：US20230203215A1

公开(公告)日：2023-06-29

申请号：US18175687

申请日：2023-02-28

Applicant: AGC INC.

Inventor： Shun WATANUKI

IPC: C08F114/16 ,  C07F7/08 ,  C08F114/18 ,  C08F4/04

CPC classification number: C08F114/16 ,  C07F7/08 ,  C08F114/185 ,  C08F4/04

Abstract: A method for producing an iodine-containing compound includes reacting a halogen-containing organic iodine compound and a compound containing a reactive carbon-carbon double bond in the presence of a compound of Formula (21) or Formula (22). Each of R21, R23 and R24 represents a hydrogen atom, an iodine atom, or an organic group having from 1 to 20 carbon atoms; R22 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a boron-containing group; R25 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a silicon-containing group; and each of A1 and A2 represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom.

公开(公告)号：US20220389132A1

公开(公告)日：2022-12-08

申请号：US17880011

申请日：2022-08-03

Applicant: AGC INC.

Inventor： Shun WATANUKI

IPC: C08F36/20 ,  C08F14/26

Abstract: A fluorine-containing polymer has a fluorine content of 50% by mass or more, a degree of unsaturation of 0.1 mEq/g or more, and a glass transition temperature of −20° C. or higher, and the relationship between the maximum value E*1 of the complex elastic modulus in the range of from −50° C. to (glass transition temperature−10° C.) and the minimum value E*2 of the complex elastic modulus in the range of from (glass transition temperature+10° C.) to 250° C. satisfies the following inequality: E*2/E*1≤0.01.

公开(公告)号：US20250026866A1

公开(公告)日：2025-01-23

申请号：US18901991

申请日：2024-09-30

Applicant: AGC Inc.

Inventor： Yuki ORITO ,  Shun WATANUKI

IPC: C08F2/18 ,  C08F210/02 ,  C08F214/26

Abstract: A method of producing a fluorine-containing copolymer includes performing suspension polymerization by using monomers including ethylene and tetrafluoroethylene in a polymerization medium including water and a polymerization solvent A that is not compatible with water and that is at least one kind selected from the group consisting of compounds represented by Formulae 1 to 3. In the method, the proportion of water to the polymerization medium is from 10% by volume to 80% by volume, the solubility of the polymerization solvent A to the water at 25° C. is 500 g/L or less, and the solubility of the water to the polymerization solvent A at 25° C. is 500 g/L or less. Descriptions regarding Formulae 1 to 3 are omitted.

公开(公告)号：US20230312771A1

公开(公告)日：2023-10-05

申请号：US18331551

申请日：2023-06-08

Applicant: AGC Inc.

Inventor： Shun WATANUKI

IPC: C08F4/42 ,  C08F214/18 ,  C08F214/26 ,  C08F2/38

CPC classification number: C08F4/42 ,  C08F214/182 ,  C08F214/26 ,  C08F2/38 ,  C08F2438/00

Abstract: Provided are: a tellurium-containing compound represented by Formula (M1); a polymer of a tellurium-containing compound represented by any one of Formulae (M1) to (M3); and a method for producing a polymer. Each of X1 to X3, Y1 to Y3 and Z1 to Z3 independently denotes a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or an organic group having from 1 to 20 carbon atoms; at least one of X1, Y1, or Z1 is a fluorine atom; at least one of X2, Y2, or Z2 is a chlorine atom, a perfluoroalkyl group, a monovalent hydrocarbon group having an oxyperfluoroalkylene structure, or a phenyl group; and each of R1 to R3 denotes an organic group having from 1 to 20 carbon atoms.

公开(公告)号：US20220195099A1

公开(公告)日：2022-06-23

申请号：US17654095

申请日：2022-03-09

Applicant: AGC Inc.

Inventor： Masahiro OHKURA ,  Shun WATANUKI

IPC: C08F293/00 ,  C08F14/26 ,  C08F14/18 ,  C08F14/24

Abstract: A method of producing a fluorine-containing compound is a method of producing a compound (30) having partial structure (3) by an insertion reaction of compound (20) into compound (10) that has partial structure (1), in the presence of an ionic catalyst formed from a specific monovalent anion and a counter cation. In the formulas, * represents a bonding site, and X1 and R1 to R4 each independently represents a hydrogen atom, a fluorine atom, a chlorine atom, or an organic group having a carbon number of 1 to 20 which may have a substituent.