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US 5,397,839 AGranted
Polyester-hydrogenated diene rubber compositions
AssigneeAdvanced Elastomer Systems, L.P.
InventorRaman Patel
Life of this patent
Estimating the term…
Abstract
Elastomeric compositions having improved heat aging properties are provided by blends of thermoplastic polyester resin and hydrogenated nitrile rubber. The rubber component of the composition is at least partially cured.
Claims11
A composition comprising
- (a) thermoplastic polyester resin and
- (b) hydrogenated nitrile rubber, wherein said rubber is at least partially crosslinked.
A composition comprising
- (a) from about 70 to about 20 parts by weight of a thermoplastic polyester resin selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, and mixtures thereof and
- (b) from about 30 to about 80 parts by weight of a hydrogenated nitrile rubber having less than about 5 mole percent double bond unsaturation, wherein the amounts of (a) and (b) are based on the total weight of the polyester and rubber, and wherein said rubber is has been fully crosslinked by dynamic vulcanization.
Dependencies are inferred from the claim text.