Elastomeric blend

Details Elastomeric blend Elastomeric blend

1975-04-14

1976-08-31

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

156128T, C08L 900, C08L 4700

Patent

active

039781658

ABSTRACT:
A rubbery composition of matter comprises a blend of three components, A, B and C, wherein component A comprises a rubbery homopolymers of 1,3-butadiene in an amount in the range of from about 10 to about 60 parts by weight based on weight of the blend, the homopolymer characterized by having at least 35 percent of the polymer in the cis configuration; component B comprises a rubbery 1,3-butadiene-styrene copolymer in an amount in the range of from about 15 to about 65 parts by weight based on weight of the blend; and component C comprises a medium vinyl homopolymer of 1,3-butadiene in an amount in the range of from about 25 to about 75 parts by weight based on weight of the blend, the homopolymer characterized by having at least 30 but not more than 50 percent of the polymer in the vinyl configuration.

REFERENCES:
patent: 3725331 (1973-04-01), Lesage et al.
patent: 3827991 (1974-08-01), Aido et al.
"Rubber Age", Mar. 1973, vol. 105, No. 3, pp. 25-29.
"European Rubber Journal", Dec. 1973, vol. 155, No. 12, pp. 38-48.
"Chemical & Engineering News", June 24, 1974, vol. 52, No. 25, pp. 1, 2 & 13.
"Rubber Age", Apr. 1974, vol. 106, No. 4, pp. 4, 33 & 40.

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