Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-10-13
1983-05-17
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
138177, C08F 830
Patent
active
043840795
ABSTRACT:
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 of 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.
REFERENCES:
patent: 3338862 (1967-08-01), Baker
patent: 3645980 (1975-01-01), Baker et al.
patent: 3870620 (1975-03-01), Onishi
Urethane Crosslinking of Natural Rubber by Baker et al., International Rubber Conference, May 1972.
"A New Crosslinking of Natural Rubber" by Baker et al., International Rubber Conference, May 1971.
Killgoar, Jr. Paul C.
Lemieux Marvin A.
Ford Motor Company
May Roger L.
Melotik Lorraine S.
Michl Paul R.
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