Catalyst components, a catalyst and a process for the polymeriza

Details Catalyst components, a catalyst and a process for the polymeriza Catalyst components, a catalyst and a process for the polymeriza

1986-12-22

1988-02-09

Garvin, Patrick P.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526125, 526137, 526335, 5263403, 5263486, 526351, C08F 464

Patent

active

047242558

ABSTRACT:
Catalysts for polymerization and copolymerization of olefins to form polymers having a high degree of isotacticity and fast rate of crystal transformation. The catalysts embody a component made by chlorinating a magnesium alkyl with chlorine or a mixture of chlorine and alkyl chloride to form a carrier, contacting the carrier first with liquid TiCl.sub.4, then with a Lewis base, and after that at least once with TiCl.sub.4 in the absence of Lewis base.

REFERENCES:
patent: 4252670 (1981-02-01), Chunt et al.
patent: 4279776 (1981-07-01), Shiga et al.
patent: 4335229 (1982-06-01), Sakurai et al.
patent: 4364851 (1982-12-01), Shiga et al.
patent: 4442225 (1984-04-01), Takitani et al.

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