Process and catalyst components for the polymerization and the c

Details Process and catalyst components for the polymerization and the c Process and catalyst components for the polymerization and the c

1975-02-24

1981-02-10

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429C, 526114, 526121, 526122, 526125, 526132, 526133, 526155, 526348, 526351, 526352, C08F 402, C08F 1000

Patent

active

042502845

ABSTRACT:
Polymerization and copolymerization is carried out in the presence of an improved transition metal based catalyst. The catalyst is obtained by activating with an organometallic compound, the solid product which results from the reaction of a halogen containing transition metal compound with an alkoxy metal compound of the formula X.sub.m-n M(OR).sub.n wherein M is at least one metal selected from the elements of Groups Ia, IIa, IIb, IIIa and VIIb of the Periodic Table, X is a monovalent inorganic radical, R is a monovalent hydrocarbon radical, m is the valence of M and n is an integer such that 1 .ltoreq. n .ltoreq. m.

REFERENCES:
patent: 3454547 (1969-07-01), Delbouille et al.
patent: 3642760 (1972-02-01), Backelmans et al.
patent: 3644318 (1972-02-01), Diedrich et al.

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