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Title:
水性塗料組成物
Document Type and Number:
Japanese Patent JP5225073
Kind Code:
B2
Abstract:
This invention provides a water-based paint composition comprising an emulsion resin (A), melamine resin (B) and hydrophobic solvent (C), the emulsion resin (A) being fine resin particles having core/shell type multilayered structure composed of the core made of a copolymer (I) obtained by copolymerization of 0.1-30 mass % of polymerizable unsaturated monomer (a) having at least two polymerizable unsaturated groups per molecule and 70-99.9 mass % of other polymerizable unsaturated monomer (b), and the shell made of a copolymer (II) obtained by copolymerization of 5-50 mass % of vinyl aromatic compound (c) and 50-95 mass % of other polymerizable unsaturated monomer (d), the solid mass ratio of the copolymer (I)/copolymer (II) being within a range of 10/90-90/10; the melamine resin (B) having a weight-average molecular weight within a range of 1,000-5,000; and containing, per 100 mass parts of solid resin content in the water-based paint composition, the emulsion resin (A) within a range of 10-80 mass parts, the melamine resin (B), within a range of 5-50 mass parts, and the hydrophobic solvent (C), within a range of 10-100 mass parts. Use of the water-based paint composition allows formation of coating film free of metallic mottling and excelling in flip-flop property, smoothness, luster and water resistance.

Inventors:
Norito Nakane
Yoshiyuki Yukawa
Application Number:
JP2008510973A
Publication Date:
July 03, 2013
Filing Date:
April 05, 2007
Export Citation:
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Assignee:
KANSAI PAINT CO.,LTD.
International Classes:
C09D151/00; B05D1/36; C09D5/00; C09D5/02; C09D5/29; C09D7/12; C09D125/08; C09D133/00; C09D161/28; C09D167/00
Domestic Patent References:
JP2000154204A2000-06-06
JP2006176618A2006-07-06
JP2002030253A2002-01-31
JP2004050064A2004-02-19
JP2001262053A2001-09-26
JPH05161869A1993-06-29
JP2002194011A2002-07-10
JP2005343966A2005-12-15
JPH07207220A1995-08-08
JP2000154204A2000-06-06
JP2006176618A2006-07-06
Foreign References:
WO2006009219A12006-01-26
Attorney, Agent or Firm:
Patent business corporation Odashima patent office



 
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