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US 6,153,686 AGranted
High modulus belt composition and belts made therewith
AssigneeThe Goodyear Tire & Rubber Company
InventorsDaniel Stanley Granatowicz, Matthew Thomas Morris, Mervin Victor Pilkington, Gary Richard Tompkin
Life of this patent
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Abstract
A high modulus composition based on a mixture of a hydrogenated acrylonitrile butadiene rubber which has been modified with either zinc methacrylate or a combination of zinc oxide and methacrylic acid and an unmodified hydrogenated acrylonitrile butadiene rubber for use in high load-bearing synchronous drive belts and belts made therewith.
Claims4
An elastomeric composition characterized by:
- a) from 50 to 95 parts by weight per 100 parts of rubber (phr) of an HNBR modified with either 20-60 phr zinc methacrylate or a combination of 10-60 phr zinc oxide and 20-60 phr methacrylic acid;
- b) from 5 to 50 phr of an unmodified HNBR;
- c) from 0.5 to 10 phr of a peroxide cure co-agent;
- d) from 0.25 to 20 phr of an organic peroxide;
- e) from 1 to 20 phr of a phenolic resin;
- and
- f) from 5 to 50 phr of carbon black;
- wherein the elastomeric composition contains 20 to 38 phr of zinc methacrylate and has a modulus at 10% elongation of 5.2 to 7.25 MPa.
5 more elements
A power transmission belt produced from an elastomeric composition characterized by:
- a) from 50 to 95 parts by weight per 100 parts of rubber (phr) of an HNBR modified with either zinc methacrylate or a combination of zinc oxide and methacrylic acid;
- b) from 5 to 50 phr of an unmodified HNBR;
- c) from 0.5 to 10 phr of a peroxide cure co-agent;
- d) from 0.25 to 20 phr of an organic peroxide;
- and
- e) from 1 to 20 phr of a phenolic resin and
- f) from 5 to 50 phr of carbon black,
- wherein the elastomeric has a modulus at 10% elongation of 5.2 to 7.25 MPa and a very high ultimate elongation.
5 more elements
Dependencies are inferred from the claim text.