Addition of chlorine compound to Ziegler polymerization process

Details Addition of chlorine compound to Ziegler polymerization process Addition of chlorine compound to Ziegler polymerization process

1979-12-26

1981-05-12

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526137, 526144, 526351, C08F 200, C08F 214

Patent

active

042672929

ABSTRACT:
A process for polymerizing alpha-olefins in the presence of a Ziegler-type catalyst wherein at least one of dichloroethane, dichloropropane and chlorine gas is added to the process after the polymerization has been initiated. This invention is especially useful when the olefin is propylene and the catalyst is a titanium trichloride complex.

REFERENCES:
patent: 3072630 (1963-01-01), De Jong et al.
patent: 3326872 (1967-06-01), Weber et al.
patent: 3349064 (1967-10-01), Gumboldt et al.
patent: 3462399 (1969-08-01), Matthews
patent: 3692712 (1972-09-01), Crouch
patent: 3957910 (1976-05-01), Van Den Berg

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