Use of urethane cured nitrile elastomer as oxidized fuel...

Details Use of urethane cured nitrile elastomer as oxidized fuel... Use of urethane cured nitrile elastomer as oxidized fuel...

C - Chemistry, Metallurgy

08

K

402/140, 44/49

C08K 5/16 (2006.01) C08G 18/69 (2006.01) C08K 5/205 (2006.01)

Patent

CA 1183993

ABSTRACT OF THE DISCLOSURE This invention relates to the use of particular urethane or urethane/sulfur cured acrylonitrile-butadiene elastomers in systems wherein a vulcanizate component with resistance to oxidized (sour) hydrocarbon fuel is desired, that is in systems wherein a vulcanizate functions in contact with hydrocarbon fuel having oxidation products therein. The vulcanizate composition consists essentially of the reaction produces of (i) 100 parts by weight o an acrylonitrile-butadiene copolymer and (ii) a curative comprising 1-10 parts by weight of a urethane curing agent, wherein the urethane curing agent is the reaction product of a nitrosophenol and a diisocyanate. The curative may additionally comprise sulfur.

411907

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