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Title:
AQUEOUS POLYURETHANE RESIN DISPERSION
Document Type and Number:
WIPO Patent Application WO/2013/146986
Kind Code:
A1
Abstract:
The present invention provides an aqueous polyurethane resin dispersion, wherein a polyurethane resin that is obtained by reacting (A) a polyurethane prepolymer, which is obtained by reacting (a) a polyisocyanate compound, (b) a polyol compound, (c) an acidic group-containing polyol compound and (d) a blocking agent for isocyanate groups, with (B) a chain extender is dispersed in an aqueous medium. This aqueous polyurethane resin dispersion is characterized in that: the total of the urethane bond content and the urea bond content is 8-13% by weight based on the solid content; the carbonate bond content is 15-40% by weight based on the solid content; the content of isocyanate groups bonded by the blocking agent is 0.3-2.0% by weight; and an alkanedioic acid dihydrazide is contained as the chain extender.

Inventors:
MORIKAMI ATSUSHI (JP)
NAIKI MASAHIRO (JP)
ADACHI FUMIO (JP)
TAKAHASHI MANABU (JP)
MIYOSHI KENTA (JP)
Application Number:
PCT/JP2013/059190
Publication Date:
October 03, 2013
Filing Date:
March 28, 2013
Export Citation:
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Assignee:
UBE INDUSTRIES (JP)
International Classes:
C08G18/12; C08K5/17; C08K5/24; C08K5/33; C08L75/04; C09D5/02; C09D175/04
Domestic Patent References:
WO2010098316A12010-09-02
Foreign References:
JP2011213884A2011-10-27
JP2005015626A2005-01-20
JPH10120757A1998-05-12
JP2002128851A2002-05-09
JP2000104015A2000-04-11
JP2005220255A2005-08-18
JP2010098316A2010-04-30
JP2012075640A2012-04-19
Other References:
See also references of EP 2832756A4
"Latest Polyurethane Materials and Applied Techniques", CMC PUBLISHING CO., LTD., pages: 43
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
Patent business corporation Tsukuni (JP)
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