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US 11,306,199 B2Granted
Elastomer formulation using a combination of polymers to create ozone resistance without addition of wax
AssigneePullman Incorporated
InventorsJeanette Pilarski, Joshua R. Goossens
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Abstract
A shaped article is formed from a cured rubber composition comprising EPDM and a diene rubber. The shaped article exhibits a coefficient of friction greater than 0.1.
Claims14
A shaped article formed from a cured rubber composition comprising:
- ethylene propylene diene monomer (EPDM) having an organic polymer comprising sulfur covalently incorporated therein;
- a diene rubber;
- and
- a curing agent that cures the EPDM having the organic polymer comprising sulfur covalently incorporated therein to the diene rubber,
- wherein the article has a coefficient of friction greater than 0.1, and
- wherein the EPDM having the organic polymer comprising sulfur covalently incorporated therein is present in the cured rubber composition at a concentration of greater than about 5 wt. % and less than about 25 wt. % based on the total weight of the EPDM and the diene rubber.
3 more elements
A shaped article formed from a cured rubber composition comprising:
- a diene;
- and
- an ethylene propylene diene monomer (EPDM) having an organic polymer comprising sulfur covalently incorporated therein,
- wherein the diene is cross-linked to the EPDM having the organic polymer comprising sulfur with elemental sulfur.
1 more element
Dependencies are inferred from the claim text.