Ethylene polymers with long chain branching

Details Ethylene polymers with long chain branching Ethylene polymers with long chain branching

1972-04-13

1976-10-05

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526280, 526281, 526336, 526352, C08F 468, C08F 3208, C08F 3620

Patent

active

039846105

ABSTRACT:
A polymer of an alpha-olefin and at least one diene with low residual unsaturation and long chain branching and the process for preparing said polymer. The process comprises polymerizing an alpha-olefin (ethylene) with at least one diene in the presence of a coordination catalyst, the diene being selected from linear .alpha.,.omega.-dienes of at least eight carbon atoms (1,7-octadiene) and cyclic endomethylenic dienes (bicyclo(2,2,1)-2-5-heptadiene, dinorbornene), the diene being characterized in that each one of the two double bonds is readily polymerizable.

REFERENCES:
patent: 2933480 (1960-04-01), Gresham et al.
patent: 3351621 (1967-11-01), Bacskai
patent: 3467637 (1969-09-01), Prucnal
Chemical Abstracts vol. 70, 78959 1969, Vulcanizable Ethylene-Propylene-Cyclodiene Terpolymers.
Volvassori et al., Chimica e Industria (Milan) 44 1095-1100 (Oct. 1962) (Translation furnished).

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