Exxon Chemical Patents, Inc.

Robert C Keller

Sudhin Datta

Hsien-Chang Wang

Edward N Kresge

James V Fusco

Bernard J Costemalle

Walter G Funk

Fred T Morrar

Donald Frederick Kruse

Marcel A Steurs

Laszlo L Ban

Marc R Kuhnhein

Elastomers modified by amine groups, particularly diethanol amine, are used for controlling carbon black distribution in elastomer blends.

Method to control carbon black distribution in elastomer blends

A hose composition is provided which comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, fillers, rubber compounding additives and a curing agent. A hose comprising at least a portion made from this hose composition is also provided.

Hose composition

The present invention provides for an improved butyl rubber composition which exhibits improved adhesion to pre-treated polyester textile materials, while at the same time important physical properties of cured butyl rubber such as modulus, tensile strength and elongation are maintained or even enhanced. The vulcanizable composition of the invention is based on a blend of butyl rubber and minor amounts of a copolymer of ethylene with a lower alkyl acrylate or methacrylate, or a terpolymer of ethylene, a lower alkyl acrylate or methacrylate and acrylic or methacrylic acid. The composition of this invention exhibits improved adhesion to pre-treated polyester textile materials. The invention also relates to laminates of the butyl rubber compositions of this invention with polyester textile materials such as yarns and woven fabrics.

Butyl rubber compositions having improved adhesion to polyester

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Morris Plains, NJ, United States of America

Robert C Keller