Solution process for the preparation of polymers of alpha-olefin

Details Solution process for the preparation of polymers of alpha-olefin Solution process for the preparation of polymers of alpha-olefin

1986-10-16

1988-09-06

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526116, 526165, 526352, 502113, C08F 206, C08F 1002

Patent

active

047694289

ABSTRACT:
A solution process, and a catalyst therefor, for the preparation of high molecular weight polymers of alph-olefins viz. homopolymers of ethylene and copolymers of ethylene and C.sub.3 -C.sub.12 alpha-olefins, is disclosed. The process is operated under solution polymerization conditions at 105.degree.-320.degree.. The catalyst is obtained from titanium tetrahalides, vanadium oxytrihalides and organoaluminum compounds, in which an admixture of catalyst components is heat-treated at 150.degree.-320.degree. C., and activated with an aluminoxane. The catalyst has good activity and the polymer obtained has improved color.

REFERENCES:
patent: 3242099 (1966-03-01), Manyik et al.
patent: 4490514 (1984-12-01), Hoff et al.
patent: 4542199 (1985-09-01), Kominsky et al.

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