Fluoropolymer alloys

Details Fluoropolymer alloys Fluoropolymer alloys

1986-03-24

1988-06-07

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525146, 525150, 525151, 525185, 525189, 524406, 524439, 524508, 524513, 524520, C08L 2718, C08L 2720, C08L 6900, C08L 8104

Patent

active

047497521

ABSTRACT:
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, the weight percentage of the former is 0.1-99.9% and the latter is 99.9-0.1% respectively. The processes for preparing the fluoropolymer alloys are 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 articles show a great improvement in creep property and also a prolonged service life in comparison with those made from ordinary polytetrafluoroethylene.

REFERENCES:
patent: 3769252 (1973-10-01), Fujii et al.
patent: 3904575 (1975-09-01), Satakawa et al.
patent: 4108605 (1978-08-01), Billings
patent: 4444727 (1984-04-01), Yanagihara
patent: 4552925 (1985-11-01), Nakagawa et al.
patent: 4605695 (1986-08-01), Sakamaki et al.
patent: 4624990 (1986-11-01), Lunk et al.

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