Process for the preparation of tacky mixtures based on rubbery e

Details Process for the preparation of tacky mixtures based on rubbery e Process for the preparation of tacky mixtures based on rubbery e

1976-04-21

1978-12-26

Bleutge, John C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 237M, 260846, 260876B, 260889, C08L 900, C08L 906, C08L 1900

Patent

active

041316347

ABSTRACT:
Rubber mixtures consisting of (1) 20 - 75 parts of a copolymer containing 60 - 80% by weight of ethylene, 20 - 40% by weight of an .alpha.-alkene, and 0 - 20% by weight of one or more polyenes and having, in the unvulcanized state, an elongation at rupture of over 800% and a tensile strength of between 10 and 100 kg/cm.sup.2 ; (2) 80 - 25 parts of at least one polymeric material which is a styrene-butadiene copolymer; polybutadiene or polyisoprene; and (3) a tackifier resin and optionally conventional fillers and additives, wherein the mixture of (1), (2) and (3) has an elongation at rupture of at least 800% and a tensile strength of between 1.3 and 50 kg/cm.sup.2.

REFERENCES:
patent: 3343582 (1967-09-01), Himes et al.
patent: 3451962 (1969-06-01), Auler et al.
patent: 3557028 (1971-01-01), Turk
patent: 3630974 (1971-12-01), Ladocsi et al.
patent: 3741931 (1973-06-01), Martin et al.
patent: 3821152 (1974-06-01), Cornell et al.
patent: 3852354 (1974-12-01), Usamoto et al.

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