Method for operating reactor for polymerizing olefins

Details Method for operating reactor for polymerizing olefins Method for operating reactor for polymerizing olefins

1993-12-28

1996-08-06

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 84, C08F 238

Patent

active

055434789

ABSTRACT:
In the preparation of polyolefin in a vapor phase polymerization using catalysts comprising a solid catalyst component containing titanium and/or vanadium; and magnesium and an organoaluminum compound, when the reaction is stopped for a certain period of time, the restarting of reaction is possible by feeding in the first place an organoaluminum compound into the reaction system with retaining of polymer particles in the reactor.

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