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Title:
AQUEOUS COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2015/114963
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an aqueous coating composition which has excellent storage stability and good compatibility with other resin components, enables the formation of a coating film having excellent coating film performance including finish appearance and water resistance, and contains acrylic urethane composite resin particles. As a means for solving the problem, an aqueous coating composition is provided, which comprises (A) acrylic urethane composite resin particles, (B) a resin containing a reactive group and optionally (C) a cross-linking agent, said aqueous coating composition being characterized in that each of the acrylic urethane composite resin particles (A) comprises an acrylic urethane resin (I) and a graft acrylic resin (II), wherein the acrylic urethane resin (I) is synthesized in the presence of a graft acrylic resin (II) having a hydrophobic chain and a hydrophilic chain and having a weight average molecular weight of 5000 or more.

Inventors:
KANDA TAKASHI (JP)
NAKAMIZU MASATO (JP)
Application Number:
JP2014/083000
Publication Date:
August 06, 2015
Filing Date:
December 12, 2014
Export Citation:
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Assignee:
KANSAI PAINT CO LTD (JP)
International Classes:
C09D175/04; C09D5/02; C09D151/00; C09D201/02
Domestic Patent References:
WO2013151050A12013-10-10
Foreign References:
JP2006056973A2006-03-02
JP2012131092A2012-07-12
JP2011016957A2011-01-27
JP2004224907A2004-08-12
JP2012062445A2012-03-29
JP2005120304A2005-05-12
JP2011149011A2011-08-04
JP2010150519A2010-07-08
Other References:
See also references of EP 3101074A4
J. BRANDRUP, E.H. IMMERGUT, AND E.A. GRULKE: "Polymer Handbook, 4th ed.", 1999
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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