The Goodyear & Tire Rubber Company

Mervin Victor Pilkington

Robert C Schisler

Ramon Joseph DiMascio

Matthew Thomas Morris

Gary Richard Tompkin

Richard H Becken

Jack R Creasey

Robert W Cole

Daniel Stanley Granatowicz

Carol L Forste

The present invention relates to a hose comprising: a thermoplastic fluoropolymer barrier layer; and a rubber layer adjacent to the barrier layer, the rubber layer comprising 100 parts by weight of an elastomer comprising FKM fluoroelastomer; from about 1 to about 15 parts by weight, per 100 parts by weight of elastomer, of at least one acid acceptor selected from the group consisting of magnesium oxide, calcium hydroxide, litharge, dibasic lead phosphite, calcium oxide, and zinc oxide; from about 1 to about 6 parts by weight, per 100 parts by weight of elastomer, of at least one diamine curative; and from about 1 to about 10 parts by weight, per 100 parts by weight of elastomer, of at least one of a hydrotalcite or tricalcium aluminate hexahydrate; wherein the weight ratio of the at least one acid acceptor to the at least one hydrotalcite ranges from about 1 to about 5.

Hose construction containing fluoroelastomer composition and fluoroplastic barrier

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.

High modulus belt composition and belts made therewith

Calcium aluminum hexahydrate is a useful curative-stabilizer for halogenated rubbers such as chloronated polyethylene, chlorosulfonated polyethylene and polychloroprene as it can yield vulcanizates free of leachable lead. Also, these vulcanizates with about 1 to about 30 or more parts with about 3 to about 15 parts calcium aluminum hexahydrate being highly desirable give satisfactory to improved heat ageing properties as well as oil ageing properties.

Method of forming a stabilized vulcanizate of chloro rubbers and said

This invention is concerned with a hose construction particularly suitable for Freon service in refrigeration systems. The hose comprises (1) a core tube of polyamide covered by an elastomeric friction layer such as EPDM rubber having incorporated therein a calcium ion source and an adhesion system and a curative, (2) a layer of tensioned reinforcement strands, (3) an adhesive/barrier/friction layer such as an ethylene acrylic acid copolymer, (4) a second layer of tensioned reinforcement strands, and (5) a cover selected from chlorobutyl rubber or other suitable materials wherein the chlorobutyl rubber utilizes a bis-dienophile as a crosslinker.

Hose construction

This invention discloses a rubber composition that has a high capacity for absorbing energy. This rubber composition has a Shore A hardness in the range of about 20 to about 30 and is nontoxic. Thus, it has excellent properties for use in articles that come in close proximity to humans or animals which benefit from the ability to absorb energy, such as shoe soles, gun butt pads, baseball glove insert pads, helmet liners, hammer handles, horse shoe pads, tumbling mats, and the like. The energy absorbing rubber composition of this invention comprises a mixture of a polynorbornene rubber, a plasticizer, and a resin which is incompatible with the polynorbornene.

Growing community of inventors

Akron, OH, United States of America

Mervin Victor Pilkington