Method for polymerizing olefins in a gas phase reactor using...

Details Method for polymerizing olefins in a gas phase reactor using... Method for polymerizing olefins in a gas phase reactor using...

2004-11-10

2009-10-06

Cheung, William K (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S201000, C526S348000, C526S352000

Reexamination Certificate

active

07598327

ABSTRACT:
A method of starting up a gas phase polymerization reactor, comprising controlling an amount of hydrocarbon absorbed in a polymer seedbed during startup to avoid formation of agglomerates or sheeting on an interior wall of the reactor. A system for of starting up a gas phase polymerization reactor, comprising a controller coupled to the polymerization reactor and controlling an amount of hydrocarbon absorbed in a polymer seedbed during startup to avoid formation of agglomerates or sheeting on an interior wall of the reactor.

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