Catalyst composition for copolymerizing ethylene

Details Catalyst composition for copolymerizing ethylene Catalyst composition for copolymerizing ethylene

1981-07-30

1982-10-12

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 252429C, 5263486, 526901, C08F 234, C08F 1002

Patent

active

043540090

ABSTRACT:
The copolymerization of ethylene with other alpha olefins in a low pressure gas phase reaction is improved with the use of a catalyst composition prepared by forming a precursor composition from a magnesium compound, titanium compound and electron donor compound; diluting said precursor composition with an inert carrier material; treating said diluted precursor composition with a hydrocarbyl aluminum dihalide compound; and activating the precursor composition treated in this manner with an organo aluminum compound.

REFERENCES:
patent: 4064334 (1977-12-01), Kuroda et al.
patent: 4174429 (1979-11-01), Giannini et al.
patent: 4296223 (1981-10-01), Beyer
patent: 4302566 (1981-11-01), Karol et al.

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