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Title:
WATER-BASED COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
Document Type and Number:
WIPO Patent Application WO/2011/010539
Kind Code:
A1
Abstract:
A water-based coating composition which comprises (A) an acrylic resin or a polyester resin, (B) a curing agent, and (C) a blocked-isocyanato containing urethane resin emulsion that is prepared using a polyisocyanate component and a polyol component as raw materials and that has a weight-average molecular weight of 2000 to 50000, said polyisocyanate component containing an alicyclic diisocyanate, and said polyol component containing a polycarbonate diol in an amount of 50% by mass or more relative to the total amount of the polyol component, and which satisfies the following requirements: (i) when the component (A) is an acrylic resin, the component (C) is contained in an amount of 20 to 60% by mass (in terms of solid matter) relative to the total amount (in terms of solid matter) of the components (A), (B) and (C); and (ii) when the component (A) is a polyester resin, the component (C) is contained in an amount of 10 to 50% by mass (in terms of solid matter) relative to the total amount (in terms of solid matter) of the components (A), (B) and (C).

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Inventors:
KITAGAWA HIROSHI (JP)
NAKATA MUNEHIRO (JP)
TAKAYAMA DAISUKE (JP)
AZUMA TATSUYA (JP)
KITAZONO KAZUAKI (JP)
SUGAMOTO KEIJI (JP)
Application Number:
PCT/JP2010/061282
Publication Date:
January 27, 2011
Filing Date:
July 01, 2010
Export Citation:
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Assignee:
KANSAI PAINT CO LTD (JP)
KITAGAWA HIROSHI (JP)
NAKATA MUNEHIRO (JP)
TAKAYAMA DAISUKE (JP)
AZUMA TATSUYA (JP)
KITAZONO KAZUAKI (JP)
SUGAMOTO KEIJI (JP)
International Classes:
C09D133/00; B05D1/36; B05D7/24; C09D5/02; C09D167/00; C09D169/00; C09D175/04
Foreign References:
JP2005089613A2005-04-07
JPH05247170A1993-09-24
JPS6046124B21985-10-14
JP2004097917A2004-04-02
JPH03124779A1991-05-28
JPH07247333A1995-09-26
JPH10265735A1998-10-06
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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