Compositions possessing increased building tack on the basis of

Details Compositions possessing increased building tack on the basis of Compositions possessing increased building tack on the basis of

1976-11-19

1980-04-29

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 42, 260 33, 525149, 525150, 525152, C08K 304, C08K 501, C08L 900, C08L 1900

Patent

active

042005795

ABSTRACT:
Novel, rubbery copolymers of ethylene with at least one other .alpha.-alkene such as propylene, and a polyene such as 5-ethylidene norbornene-2, characterized by a differential scanning calorimetry thermogram maximum peak at a temperature between -7 and +11.degree. C., are disclosed. These specific rubbery copolymers when one or more tackifiers are included therein, exhibit an unprecedentedly high tack and consequently provide for the first time EDPM-type compositions that have sufficient building tack for the manufacture of multi-ply articles such as tires.

REFERENCES:
patent: 3063973 (1962-11-01), Gladding et al.
patent: 3379701 (1968-04-01), Gladding et al.
patent: 3658770 (1972-04-01), Longi et al.
patent: 3671506 (1972-06-01), Oshima et al.
patent: 3681309 (1972-08-01), Makowski et al.
patent: 3684782 (1972-08-01), Longi et al.
patent: 3705138 (1972-12-01), Van Den Berg
Brennan et al., Chem. Abstracts, 147163s, 1971.

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