Title:
【発明の名称】触媒不活性化によるシンジオタクチック芳香族ポリマーの固相揮発分除去
Document Type and Number:
Japanese Patent JP2001525884
Kind Code:
A
Abstract:
The present invention is an improved solid state polymer devolatilization process which comprises heating a wet feed mixture comprising polymer, residual monomer(s), process solvents and active catalyst residues in the presence of an inert gas, wherein the improvement comprises replacing the inert gas with a catalyst deactivating gas.
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Inventors:
Billovitz, Gerald F
Tippler, Scott A
Tippler, Scott A
Application Number:
JP55033598A
Publication Date:
December 11, 2001
Filing Date:
January 30, 1998
Export Citation:
Assignee:
The Dow Chemical Company
International Classes:
C08F6/00; C08F6/02; C08F12/00; (IPC1-7): C08F6/00; C08F12/00
Attorney, Agent or Firm:
Takehiko Saito (1 outside)