Catalyst for producing polymers of ethylene

Details Catalyst for producing polymers of ethylene Catalyst for producing polymers of ethylene

1978-09-22

1980-04-22

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252428, 252430, 526116, C08F 464

Patent

active

041994752

ABSTRACT:
A catalyst for producing polymers of ethylene in which a first composition prepared by reacting an inorganic support containing surface hydroxyl groups with titanium or vanadium compounds which also comprise halogen and/or OR groups wherein R is hydrocarbyl is further reacted to form a second composition by subsequent contact with a compound of titanium or vanadium as defined above chosen from compounds of the metal not reacted to form the first composition, producing a third composition by reaction of the second composition with an organoaluminum compound with the third composition being reacted with titanium tetrahalide to form the catalyst composite. A method for producing polymers of ethylene by contacting ethylene monomer in the presence of the catalyst composite described above and an organoaluminum compound under conditions suitable for polymerization.

REFERENCES:
patent: 3166542 (1965-01-01), Orzechowski et al.
patent: 3218266 (1965-11-01), Ludlum
patent: 3490219 (1970-01-01), Ozawa et al.
patent: 3591656 (1971-07-01), Kroll
patent: 3594330 (1971-07-01), Delbouille et al.
patent: 3696086 (1972-10-01), Wagensommer
patent: 3707530 (1972-12-01), Calcagno et al.
patent: 3766158 (1973-10-01), Yamaguchi et al.
patent: 3855324 (1974-12-01), Mertzweiller et al.
patent: 3899477 (1975-08-01), Altemore et al.
patent: 3996163 (1976-12-01), Crump et al.

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