Fluoropolymer alloys

Details Fluoropolymer alloys Fluoropolymer alloys

1989-10-10

1992-02-11

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5262305, C08L21426, C08L21428

Patent

active

050876805

ABSTRACT:
This invention relates to fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, weight percentage of the former is 0.1-99.9% and the latter is 99.9-0.1%. The processes for preparing fluoropolymer alloys are blend of dried powder co-mill or wetted powder co-mill. Using the fluoropolymer alloys of this invention, various kinds of articles have been fabricated by melt compression or cold compaction and sintering. These properly fabricated articles show a great improvement in creep property and also a prolonged service life in comparison with those made from ordinary polytetrafluoroethylene.

REFERENCES:
patent: 3132124 (1964-05-01), Couture et al.
patent: 4105716 (1978-08-01), Sakai et al.

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