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Title:
ポリエーテルポリオール製造連続方法及びシステム
Document Type and Number:
Japanese Patent JP2007524719
Kind Code:
A
Abstract:
A continuous process and system for producing polyether polyols that allows for continuously adding an unreacted oxide to a loop reactor while adding at least one thermally deactivating catalyst capable of thermally deactivating prior to decomposition of polyether polyol which can allow for greater concentrations of unreacted oxides and/or a rate of reaction in the loop reactor is at a rate at least two times faster than a rate of reaction in a loop reactor containing less than 14 weight percent unreacted oxide. In a preferred embodiment, the catalyst is a double metal cyanide catalyst and a plug flow reactor is formed in series with the loop reactor wherein neither reactor contains a vapor space.

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Inventors:
Felwis, Yang Way.
Papadupuros, Walter Yeh. S.
Weston, John W.
Elwell, Richard Jay.
Villa, Carlos M.
Application Number:
JP2006509135A
Publication Date:
August 30, 2007
Filing Date:
March 05, 2004
Export Citation:
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Assignee:
Dow Global Technologies Incorporated
International Classes:
C08G65/10; C08G65/26
Domestic Patent References:
JP2002513818A2002-05-14
JP2000504753A2000-04-18
JP2001506284A2001-05-15
JP2003528213A2003-09-24
JP2001519468A2001-10-23
JP2000513389A2000-10-10
JPH09157385A1997-06-17
JP2006503931A2006-02-02
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Masaya Nishiyama



 
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