Tetrafluoroethylene/fluoroalkoxy trifluoroethylene copolymer com

Details Tetrafluoroethylene/fluoroalkoxy trifluoroethylene copolymer com Tetrafluoroethylene/fluoroalkoxy trifluoroethylene copolymer com

1995-09-21

1997-02-18

Seccuro, Jr., Carman J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 369, 525200, B29D 2322, B29D 2200, B65D 102, C08L 2718

Patent

active

056039999

ABSTRACT:
A tetrafluoroethylene/fluoroalkoxy trifluoroethylene copolymer (PFA) composition which has finer spherulite diameters compared to a conventional PFA is provided, so as to give fabricated articles having excellent surface smoothness, and which are free from problems, such as process contamination and the like, caused by leaching. This effect is obtained by incorporating into the composition prior to fabrication a polytetrafluoroethylene having a crystallization temperature of at least 305.degree. C. and a heat of crystallization of at least 50 J/g.

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patent: 5317061 (1994-05-01), Chu et al.

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