Rubber compositions of polyisoprene .alpha.-methylstyrene, divin

Details Rubber compositions of polyisoprene .alpha.-methylstyrene, divin Rubber compositions of polyisoprene .alpha.-methylstyrene, divin

1974-04-15

1976-09-21

Henderson, Jr., Christopher A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08L 900

Patent

active

039819434

ABSTRACT:
One shot mouldable and curable homogeneous rubber composition consisting mainly of polyisoprene rubber and a monomer mixture composed of divinylbenzene and .alpha.-methylstyrene in specifically limited weight ratios of the rubber/the monomer mixture and of divinylbenzene/.alpha.-methylstyrene and containing small amounts of organic peroxide and at least one of amine compound and phenol compound. The cured product of the rubber composition has high Young's modulus, tear energy and tensile strength retention. More improved cured rubbers having these physical properties well balanced in a high level can be easily obtained by additionally adding a small amount of sulfur or p-quinonedioxime to the above rubber composition.

REFERENCES:
patent: 3009899 (1961-11-01), Stahly
patent: 3350449 (1967-10-01), Wheeler
patent: 3424821 (1969-01-01), Hunter
patent: 3427264 (1969-02-01), Forster
patent: 3636141 (1972-01-01), O'Neill
patent: 3652732 (1972-03-01), Makowski
patent: 3751524 (1973-08-01), Haigh

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