Title:
AQUEOUS POLYURETHANE RESIN DISPERSION AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/007876
Kind Code:
A1
Abstract:
Disclosed is an aqueous polyurethane resin dispersion which enables formation of a tough coating film.
The aqueous polyurethane resin dispersion is obtained by dispersing an aqueous polyurethane resin, which is obtained by reacting a polyurethane prepolymer (A) with a chain extender (B) which is reactive with an isocyanate group of the polyurethane prepolymer (A), in an aqueous medium. The polyurethane prepolymer (A) is obtained by reacting a polycarbonate polyol (a1) which has an average molecular weight of 400-5000 and 2.05-5 hydroxy groups per molecule on average, while containing no urethane bond, an acidic group-containing polyol compound (b) and a polyisocyanate (c), or alternatively by reacting a polycarbonate polyol (a2) which has an average molecular weight of 600-5000 and 2.05-5 hydroxy groups per molecule on average, while containing an acidic group but not containing a urethane bond, and a polyisocyanate (c).
Inventors:
NAKAMURA TAKU
NAIKI MASAHIRO
TAKAHASHI MANABU
NAIKI MASAHIRO
TAKAHASHI MANABU
Application Number:
PCT/JP2009/061892
Publication Date:
January 21, 2010
Filing Date:
June 30, 2009
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
NAKAMURA TAKU
NAIKI MASAHIRO
TAKAHASHI MANABU
NAKAMURA TAKU
NAIKI MASAHIRO
TAKAHASHI MANABU
International Classes:
C08G18/66; C08L75/06
Foreign References:
JPH03174429A | 1991-07-29 | |||
JP2008534710A | 2008-08-28 | |||
JP2005232447A | 2005-09-02 | |||
JP2002179758A | 2002-06-26 | |||
JP2001334615A | 2001-12-04 | |||
JPH0741539A | 1995-02-10 | |||
JPH0539340A | 1993-02-19 | |||
JP4503226A | ||||
JPH0441517A | 1992-02-12 | |||
JPH03128912A | 1991-05-31 | |||
JP2002179787A | 2002-06-26 | |||
JPH10273514A | 1998-10-13 | |||
JPH059434A | 1993-01-19 | |||
JP2000212240A | 2000-08-02 | |||
JPH03220233A | 1991-09-27 | |||
JPH02289616A | 1990-11-29 | |||
JP2005060643A | 2005-03-10 | |||
JPH10120757A | 1998-05-12 | |||
JPH03174429A | 1991-07-29 | |||
JPH08193181A | 1996-07-30 |
Other References:
See also references of EP 2301982A4
Attorney, Agent or Firm:
TSUKUNI, HAJIME (JP)
Hajime Tsukuni (JP)
Hajime Tsukuni (JP)
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