High efficiency titanate catalyst for polymerizing olefins

Details High efficiency titanate catalyst for polymerizing olefins High efficiency titanate catalyst for polymerizing olefins

1976-10-26

1979-08-07

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429C, 252431R, 526125, 526151, 526158, 526352, C08F 466, C08F 1002

Patent

active

041638310

ABSTRACT:
Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins are provided by reacting compound of titanium, e.g., a titanate such as tetra(isopropoxy)titanium, an organomagnesium compound or complex such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum, e.g., di-n-butylmagnesium 1/6 triethylaluminum and an alkyl aluminum halide. The organomagnesium component is highly concentrated in hydrocarbon diluent at the time it reacts with the metallic halide. The resulting catalysts when used in slurry polymerization processes produce polyolefin powders having higher bulk densities than those produced using conventional high efficiency catalysts.

REFERENCES:
patent: 3737393 (1973-06-01), de Vries

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