27-01-2022 дата публикации
Номер: US20220025166A1
Принадлежит:
Disclosed is a thermoplastic elastomer composition comprising a blend of at least two fluoropolymers. The first fluoropolymer has from 0 to 30 weight percent of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. The second fluoropolymer has at least 30 weight percent, preferably at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. 1. A fluoropolymer composition comprising a fluoropolymer blend comprising fluoropolymer S and fluoropolymer H wherein:H comprises from 0 to 30 weight percent, of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof;S comprises at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof, andwherein, the amount of H is from 20 to 80 weight % of the composition, and the amount of S is from 80 to 20 weight % of the composition.2. A fluoropolymer composition comprising a fluoropolymer blend comprising fluoropolymer S and fluoropolymer H wherein:H comprises from 0 to 30 weight percent, of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof;S comprises at least 30 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), ...
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