Fluoroopolymer blends

Details Fluoroopolymer blends Fluoroopolymer blends

1989-08-17

1991-10-15

Marquis, Melvyn I.

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

428378, 524505, 524520, 525 88, 525193, 525199, 522109, 252511, C08L 2718, C08L 2720, C08L 5300

Patent

active

050573454

ABSTRACT:
A polymer blend comprises (A) a fluorinated ethylene-propylene copolymer and (B) a fluoroelastomer. The fluoroelastomer comprises a block copolymer comprising at least one elastomeric segment comprising tetrafluoroethylene, vinylidene fluoride, and hexafluropropylene repeat units in a mole ratio 45-90:5-50:0-35 and at least one nonelastomeric segment comprising tetrafluoroethylene and ethylene repeat units. The weight per cent of copolymer (A) relative to the combined weights of copolymer (A) and fluroelastomer (B) is between about 70% and about 97% or between about 3% and about 30%.

REFERENCES:
patent: 3911192 (1975-10-01), Aronoff et al.
patent: 4031167 (1977-06-01), Aronoff et al.
patent: 4158678 (1979-06-01), Tatemoto et al.
patent: 4200568 (1980-04-01), Trautvetter et al.
patent: 4935467 (1990-06-01), Cheng
WO 88/07063 (1988) Cheng et al.
DuPont, Research Disclosure No. 19002, p. 59, (Feb. 1980).
World Patent Index No. 84-124883/20 (abstract of JP59-062635).
World Patent Index No. 84-097000/16 (abstract of JP59-041351).
WO 87/06597 (1987) Johnson et al.
Japanese Abstrast: JP 52086442 (1977) Daikin Kogyo.
Article: Kawachi Cummi Fasern Kunstoffe 39, No. 4, pp. 162-166 (1986).

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