Title:
AQUEOUS POLYURETHANE RESIN COMPOSITION AND OPTICAL FILM USING SAID COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/119372
Kind Code:
A1
Abstract:
[Problem] To provide a polyurethane resin composition which has excellent moisture-resistant transparency, excellent adhesion to a photocured resin and excellent blocking resistance, while being suppressed in warping, and which is suitable for optical film applications. [Solution] An aqueous polyurethane resin composition which is obtained by: preparing a urethane prepolymer composition that contains a urethane prepolymer (A) obtained by reacting a polyol (a), a polyisocyanate (b) and an anionic group-introducing agent (c) and a specific (meth)acrylic compound (B) so that the mass ratio of the urethane prepolymer (A) to the (meth)acrylic compound (B) is 100:1-30; subsequently dispersing the urethane prepolymer composition into water so that the concentration of the urethane prepolymer composition is 10-70% by mass; and then causing the urethane prepolymer (A) in the thus-obtained aqueous dispersion to react with a chain extender (C).
Inventors:
IMOTO TAKESHI (JP)
YUKUTAKE HIDEAKI (JP)
KOSAKA TATSUMI (JP)
SHIMAMURA NOBUYUKI (JP)
YUKUTAKE HIDEAKI (JP)
KOSAKA TATSUMI (JP)
SHIMAMURA NOBUYUKI (JP)
Application Number:
PCT/JP2016/088972
Publication Date:
July 13, 2017
Filing Date:
December 27, 2016
Export Citation:
Assignee:
ADEKA CORP (JP)
International Classes:
C08G18/40; B32B7/02; B32B27/40; C08G18/10; C08J3/03; C08K5/103; C08K5/3492; C08L75/04; C09J4/02; C09J4/06; C09J175/04
Domestic Patent References:
WO2011010719A1 | 2011-01-27 | |||
WO2012147712A1 | 2012-11-01 | |||
WO2012114833A1 | 2012-08-30 |
Foreign References:
JP2014134674A | 2014-07-24 | |||
JPH11511765A | 1999-10-12 | |||
JP2007256844A | 2007-10-04 | |||
JP2014001340A | 2014-01-09 | |||
JP2004141732A | 2004-05-20 | |||
JP2006002010A | 2006-01-05 | |||
JP2013023611A | 2013-02-04 | |||
JP2011140139A | 2011-07-21 | |||
JP2015218267A | 2015-12-07 |
Attorney, Agent or Firm:
IZAWA Makoto (JP)
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