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US 9,068,066 B2Granted
Heat resistant hydrocarbon elastomer compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorSteven R Oriani
Life of this patent
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Abstract
Disclosed herein is a curable composition comprising ethylene copolymer elastomer, a relatively small amount of a polyamide, and optionally a compatibilizer wherein curable composition demonstrates improved heat aging properties without the loss of tensile strength. Also disclosed is the process for making such curable ethylene copolymer elastomer.
Claims21
A curable elastomer composition, said composition comprising:
- (a) an ethylene copolymer elastomer gum comprising up to 75 wt % of copolymerized units of ethylene and 25 wt % or more of copolymerized units of one or more alpha-olefins, based on the total weight of the ethylene copolymer elastomer;
- (b) a polyamide having a melting peak temperature of about or greater than about 160° C. as determined by ASTM D3418-08, wherein said polyamide is present in an amount of 0.1 to 5 phr;
- (c) a curative;
- and
- (d) optionally, a compatibilizer.
2 more elements
Dependencies are inferred from the claim text.