Gas phase polymerization and distributor plate passivation...

Details Gas phase polymerization and distributor plate passivation... Gas phase polymerization and distributor plate passivation...

2011-01-25

2011-01-25

Teskin, Fred M (Department: 1762)

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

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

C526S901000, C422S143000, C428S461000, C428S469000, C034S582000

Reexamination Certificate

active

07875685

ABSTRACT:
Apparatus and methods for gas phase polymerization are provided. The method can include polymerizing one or more olefins at gas phase conditions in a reactor comprising one or more process exposed surfaces in the presence of a catalyst system; and treating at least a portion of the one or more process exposed surfaces prior to injecting the catalyst system to reduce the number of surface hydroxyls or access of the catalyst system to the surface hydroxyls on the process exposed surfaces.

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Author: Anonymous,Fouling Reduction in a Gas-phase Polymerization Reactor, Research Disclosure, Mason Publications, Feb. 1, 1984, vol. 238, No. 3 (Abstract).

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