Thermoplastic elastomer composition and Freon gas hose made ther

Details Thermoplastic elastomer composition and Freon gas hose made ther Thermoplastic elastomer composition and Freon gas hose made ther

1990-02-28

1991-01-22

Carrillo, Ana L.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 347, 428 357, 525178, 525179, 525184, F16L 1104, F16L 1108, F16L 1120

Patent

active

049870173

ABSTRACT:
A thermoplastic elastomer composition which comprises 25-95% by weight of a polyamide and 75-5% by weight of a halogenated butyl rubber, a chlorosulfonated polyethylene or both thereof. Said composition is excellent in resistance to Freon gas permeation and has good oil resistance and low-temperature resistance. A hose wherein the layer to be contacted with a gas is made of the above thermoplastic elastomer composition is suitable as a Freon gas R-22 hose.

REFERENCES:
patent: 2914996 (1959-11-01), Kelly
patent: 4207404 (1980-06-01), Coran et al.

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