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US 5,290,886 AGranted
Thermoplastic elastomers having improved low temperature properties
AssigneeAdvanced Elastomer Systems, L.P.
InventorMaria D. Ellul
Life of this patent
Estimating the term…
Abstract
Thermoplastic elastomers having improved low temperature properties are provided by incorporating suitable low molecular weight ester plasticizer into blends of crystalline polyolefin homopolymer or copolymer and olefinic rubber. The rubber component of the composition is at least partially cured.
Claims15
A composition comprising
- (a) from about 10 to about 90 wt % thermoplastic, crystalline polyolefin homopolymer or copolymer,
- (b) from about 90 to about 10 wt % olefinic rubber, and
- (c) from about 1 to about 250 parts per hundred parts of rubber of a low molecular weight ester plasticizer which is compatible with both the polyolefin and rubber,
- wherein said rubber is at least partially crosslinked.
1 more element
A composition comprising
- (a) from about 10 to about 90 wt % of polypropylene,
- (b) from about 90 to about 10 wt % of EPDM terpolymer rubber, based on the total weight of components (a) and (b), and
- (c) from about 15 to about 65 wt % of isooctyltallate, based on the total weight of components (a), (b) and (c),
- wherein said rubber is at least partially crosslinked.
1 more element
Dependencies are inferred from the claim text.