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Title:
重縮合樹脂の製造方法
Document Type and Number:
Japanese Patent JP5492864
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a means for efficiently producing a high quality polycondensation resin without hindrance such as fusion of lower condensates to each other or scaling in piping by a lower condensate.SOLUTION: The method for producing a polycondensation resin includes a step of performing solid phase polymerization of a lower condensate, and the method for producing a polycondensation resin further includes a step of producing a lower condensate, a step of compression-molding the obtained lower condensate to form a granular compression-molded product, and a step of performing solid phase polymerization of the granular compression-molded product.

Inventors:
Tomoaki Shimoda
Tomomichi Kanda
Application Number:
JP2011273256A
Publication Date:
May 14, 2014
Filing Date:
December 14, 2011
Export Citation:
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Assignee:
Cheil Industries Inc.
International Classes:
C08G85/00; C08G69/30
Domestic Patent References:
JP7090077A
JP2003292604A
JP1158033A
Foreign References:
WO2002031022A1
Attorney, Agent or Firm:
Hatta International Patent Corporation



 
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