High efficiency, high temperature catalyst for polymerizing olef

Details High efficiency, high temperature catalyst for polymerizing olef High efficiency, high temperature catalyst for polymerizing olef

1980-09-16

1982-03-09

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526125, 526144, 526151, 526352, C08F 464, C08F 1002

Patent

active

043190111

ABSTRACT:
Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins at temperatures above 140.degree. C. are provided by reacting a transition metal compound such as tetra(isopropoxy)titanium, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum, e.g., di-n-butylmagnesium.x triethylaluminum and a hydrogen halide or an active hydrocarbyl halide such as t-butyl chloride. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.

REFERENCES:
patent: 4039472 (1977-08-01), Hoff
patent: 4250288 (1981-02-01), Lowery et al.

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