Stereospecific olefin polymerization processes

Details Stereospecific olefin polymerization processes Stereospecific olefin polymerization processes

1978-05-19

1980-01-08

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, 526106, 526142, 526159, 5261692, 526352, 526903, C08F 402, C08F 1002

Patent

active

041828178

ABSTRACT:
A process is provided for the stereospecific polymerization of an olefin such as ethylene in a liquid medium in which a finely-divided solid polymerization catalyst is fed to the polymerization zone on a truly continuous basis to provide a uniform dispersion of the polymerization catalyst throughout the polymerization zone. The process is carried out by pumping into the polymerization zone a Bingham fluid which has the finely-divided solid polymerization catalyst uniformly dispersed throughout a solid continuous phase, which is a mixture of a wax and a liquid hydrocarbon.

REFERENCES:
patent: 2967834 (1961-01-01), Daniel et al.
patent: 3061601 (1962-10-01), Watt
patent: 3361681 (1968-01-01), Muller
patent: 3849334 (1974-11-01), Frielingsdorf et al.
patent: 3884857 (1975-05-01), Ballard et al.

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