Green strength of elastomers

C - Chemistry – Metallurgy – 08 – L

Patent

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400/1124, 400/64

C08L 7/00 (2006.01) C08F 36/04 (2006.01) C08L 9/00 (2006.01) C08L 21/00 (2006.01)

Patent

CA 1100672

IMPROVED GREEN STRENGTH OF ELASTOMERS ABSTRACT OF THE DISCLOSURE Improved green strength of elastomers made from mono- mers selected from the class consisting of at least one conju- gated diene having from 4 to 10 carbon atoms, olefins having from 2 to 14 carbon atoms along with a diene having from 4 to 6 carbon atoms, and combinations thereof, is achieved by add- ing an amount of a polydimethylbutadiene compound to form a blend having a glass transition temperature of from about 0°C to about -100°C. The polydimethylbutadiene compound may be merely the homopolymer of dimethylbutadiene, the copolymer, the terpolymer or the tetrapolymer of dimethylbutadiene in various combinations with monomers such as butadiene, isoprene, piperylene, acrylonitrile, vinylidene chloride, vinyl pyri- dine, methacrylic acid and vinyl substituted aromatic com- pounds.

277097

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