Catalyst system and process

Details Catalyst system and process Catalyst system and process

1992-09-25

1994-02-08

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526105, 526129, 526137, 5263483, 5263484, 5263485, 5263486, 526905, 502104, 502107, 502117, 502119, 502228, C08F 478, C08F 238

Patent

active

052849260

ABSTRACT:
An ethylene polymerization catalyst system is provided. This catalyst system is produced by the process comprising forming an activated and reduced composition that is substantially free of titania and that comprises a fluorine compound, a chromium compound, and a catalyst support that consists essentially of silica.
An ethylene polymerization process is provided. This process uses the ethylene polymerization catalyst system above. This catalyst system is contacted with ethylene, in the presence of hydrogen and trialkylaluminum, under polymerization conditions, to produce a polyethylene resin.

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Hawley's Condensed Chemical Dictionary, Eleventh Edition, p. 46.
Handbook of Chemistry and Physics, 56th Edition, 1975-1976, pp. B-70 & B-121.

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