EXTRUDABLE FLUOROPOLYMER BLEND

摘要

PROBLEM TO BE SOLVED: To provide a composition allowing processing of fluoropolymer materials with a higher production rate while maintaining high quality of products without deteriorating mechanical characteristics.

SOLUTION: The composition is a melt-processible fluoro thermoplastic composition including a major amount of a first semi-crystalline fluorinated copolymer and a minor amount of a second fluoropolymer effective to reduce melt defects in the composition. Each fluoropolymer is selected from the followings: (a) a semi-crystalline perfluorinated copolymer; (b) a fluoropolymer derived from copolymer units of at least one essentially perfluorinated monomer and at least one non-fluorinated hydrogen-containing monomer; (c) a fluoropolymer derived from copolymer units of at least one partially-fluorinated monomer, and optionally at least one essentially perfluorinated monomer; and (d) an amorphous copolymer of a tetrafluoroethylene and a hexafluoropropylene.

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