Japan Intellectual Property Rights: COPOLYMER, INJECTION MOLDING, COMPRESSED MEMBER AND COVERED WIRE

Japan, Feb. 27 -- DAIKIN IND LTD has got intellectual property rights for 'COPOLYMER, INJECTION MOLDING, COMPRESSED MEMBER AND COVERED WIRE.' Other related details are as follows:

Application Number: JP,2022-149272

Category (FI): C08F214/26,H01B3/44@C,H01B7/02@Z,C08J5/00,C08J5/18

Stage: PROBLEM TO BE SOLVED: To provide a copolymer that has a high glass transition temperature, has appropriate hardness even at a high temperature, can obtain an injection molding excellent in surface smoothness at a high productivity, can easily form a thin covering layer excellent capacitance stability on a core wire of a small diameter, and can obtain a molding excellent in crack resistance and friction resistance at a high temperature, exceptional in low vapor permeability, difficult to intrude water vapor, and exceptional in sealability at a high temperature.SOLUTION: A copolymer comprises a tetrafluoro ethylene unit and a perfluoro(propyl vinyl ether) unit, in which the content of the perfluoro(propyl vinyl ether) unit is 2.0 to 2.8 mass% relative to the total monomer unit, and a melt flow rate is 23 to 30 g/10 min.SELECTED DRAWING: None (Grant)

Filing Date: Sept. 20, 2022

Publication Date: Dec. 8, 2022

The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100

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