Process for the polymerization of ethylene or alpha-olefins and

Details Process for the polymerization of ethylene or alpha-olefins and Process for the polymerization of ethylene or alpha-olefins and

1977-05-16

1980-02-05

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, 526116, 526119, 526125, 526127, 526129, 526132, 526133, 526139, 526140, 526141, 526142, 526143, 526156, 526159, 526904, C08F 466, C08F 1006

Patent

active

041873858

ABSTRACT:
Polymerization of ethylene or .alpha.-olefins using a catalyst comprising a titanium component obtained by copulverizing the starting titanium component of Ziegler catalysts and organoaluminum compound with a small amount of ethylene or .alpha.-olefins, and an organoaluminum component. The titanium catalyst component can be modified by subjecting the copulverized titanium component to a contact with an inert organic solvent or its mixture with a modifier (1) an oxygen-, sulphur-, phosphor-, nitrogen- or silicon- containing organic compound, (2) a combination of such an organic compound and an aluminum halide, (3) an organoaluminum compound or (4) a Lewis acid.

REFERENCES:
patent: 3004962 (1961-10-01), Matlack
patent: 3014016 (1961-12-01), Natta et al.
patent: 3984350 (1976-10-01), Karayannis et al.
patent: 4028481 (1977-06-01), Shiomura et al.

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