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Patent Searching and Data


Title:
METHOD FOR PRODUCING COAGULATED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/087795
Kind Code:
A1
Abstract:
The present invention provides a method for producing a coagulated article, the method being characterized in that a urethane resin composition containing water is coagulated using the salt of an acid having two or more carboxyl groups. The coagulation preferably is carried out at a temperature of less than 40°C. The salt of the acid having two or more carboxyl groups preferably is a citrate and/or a tartrate. The urethane resin composition preferably contains a urethane resin having an anionic group. The method for producing the coagulated article preferably has a step for impregnating an aqueous urethane resin composition with a fibrous base material and then immersing the same in the salt of an acid having two or more carboxyl groups. According to this production method, it is possible to obtain exceptional coagulation properties such that contamination of a coagulation bath by the urethane resin does not occur and debris of the urethane resin is not produced when the coagulated article is squeezed.

Inventors:
KOMATSUZAKI KUNIHIKO (JP)
TETSUI TOMOHIRO (JP)
Application Number:
PCT/JP2018/038806
Publication Date:
May 09, 2019
Filing Date:
October 18, 2018
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
D06N3/14; C08J3/16; D06M13/207; D06M15/564
Domestic Patent References:
WO2017013926A12017-01-26
Foreign References:
JPS6170083A1986-04-10
JP2005001332A2005-01-06
JPS5536376A1980-03-13
JP2008007894A2008-01-17
JP2017025423A2017-02-02
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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