公开(公告)号：US11332561B2

公开(公告)日：2022-05-17

申请号：US16830643

申请日：2020-03-26

Applicant: AGC Inc.

Inventor： Takeshi Yamada ,  Toshifumi Kakiuchi ,  Aya Serita ,  Masahide Yodogawa

IPC: C08F214/26 ,  C09D7/61 ,  C09D7/20 ,  C08K3/04 ,  C08K3/36 ,  C08L27/18 ,  C09D127/18 ,  C09J127/18

Abstract: To provide a fluorinated elastic copolymer composition such that solubility of a fluorinated elastic copolymer in a solvent is excellent, the solvent is easily removed, and the solvent is easily available.
A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19× number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.

公开(公告)号：US20200223965A1

公开(公告)日：2020-07-16

申请号：US16830643

申请日：2020-03-26

Applicant: AGC Inc.

Inventor： Takeshi Yamada ,  Toshifumi Kakiuchi ,  Aya Serita ,  Masahide Yodogawa

IPC: C08F214/26 ,  C08L27/18 ,  C08K3/04 ,  C08K3/36 ,  C09J127/18 ,  C09D127/18 ,  C09D7/20 ,  C09D7/61

Abstract: To provide a fluorinated elastic copolymer composition such that solubility of a fluorinated elastic copolymer in a solvent is excellent, the solvent is easily removed, and the solvent is easily available.A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19×number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.

公开(公告)号：US10607749B2

公开(公告)日：2020-03-31

申请号：US15803902

申请日：2017-11-06

Applicant: AGC Inc.

Inventor： Shigeru Aida ,  Yoji Nakajima ,  Toshifumi Kakiuchi ,  Masakazu Ataku

IPC: C08F14/26 ,  H01B3/44 ,  C08F214/26 ,  C08F210/02 ,  C09D127/18 ,  C08F2/06 ,  C08F4/34

Abstract: To provide an ETFE copolymer and a wire coating resin material capable of forming a coating layer which is excellent in stress cracking resistance under a high temperature and which has a high heat resistance temperature, and an electric wire having a coating layer which is excellent in stress cracking resistance under a high temperature and which has a high heat resistance temperature. A copolymer comprising structural units derived from ethylene, structural units derived from tetrafluoroethylene, and structural units derived from a third monomer, wherein in an elution curve obtained by a temperature rising elution fractionation method with respect to the copolymer, a ratio (L/H) of a proportion (L: area %) of components with elution temperatures of from 190 to 200° C. to a proportion (H: area %) of components with elution temperatures of at least 205° C., and a proportion (M: mol %) of structural units derived from the third monomer based on all structural units of the copolymer, satisfy a relation of log (L/H)/M≥0.90.

公开(公告)号：US20200010693A1

公开(公告)日：2020-01-09

申请号：US16572665

申请日：2019-09-17

Applicant: AGC Inc.

Inventor： Toshifumi Kakiuchi ,  Toshio Nakashima ,  Eisuke Murotani ,  Shun Saito ,  Kei Ishitsuka

IPC: C09D5/02 ,  C09D127/12 ,  C08F214/24 ,  C08K5/41

Abstract: An object of the present invention is to provide an aqueous dispersion capable of forming a coating film excellent in coloring stability, a method for producing the aqueous dispersion, an aqueous coating material and a coated article. This aqueous dispersion comprises water, a surfactant and a fluorinated polymer, wherein the fluorinated polymer is dispersed in the water, wherein the fluorinated polymer comprises units based a fluoroolefin and units based on a monomer having a hydrophilic group, and the surfactant is a compound of such a structure that to a benzene ring, 1 group represented by the formula —(OQ)nOSO3−X+ and 2 to 4 phenyl alkyl groups are bonded (where Q represents a C2-4 alkylene group, n represents an integer of from 2 to 48, and X+ represents Na+ or NH4+).