Process for polymerizing olefins

Details Process for polymerizing olefins Process for polymerizing olefins

1988-03-04

1989-10-10

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526124, 526125, 526352, C08F 464, C08F 1000

Patent

active

048733008

ABSTRACT:
Olefins are polymerized under slurry conditions in the presence of a cocatalyst and a catalyst prepared by a method wherein a mixture (A) containing the product resulting from mixing in an inert hydrocarbon diluent (1) a hydrocarbon soluble magnesium alkyl compound, (2) an aliphatic alcohol and (3) a titanium compound is reacted with (B) a reducing halide source. Components (A) and (B) are mixed at a constant initial temperature. When the concentration of components (A) and (B) in said hydrocarbon solvent is relatively low and when the ratio of the number of moles of aliphatic alcohol:total number of hydrocarbyl groups attached to the metal atom in component (1) is relatively low, the resultant polymer has a relatively small average particle size and a relatively narrow particle size distribution.

REFERENCES:
patent: 4163831 (1979-08-01), Gessell
patent: 4526943 (1985-07-01), Fuentes et al.

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