WATER-BASED PRIMER COMPOSITION - KANSAI PAINT CO LTD

Title:

WATER-BASED PRIMER COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2006/019171

Kind Code:

A1

Abstract:

A water-based primer composition characterized in that it comprises: (A) an aqueous dispersion of a chlorine-free modified polyolefin, the dispersion being obtained by dispersing in an aqueous medium a polyolefin (a) modified with an unsaturated carboxylic acid or an acid anhydride, the modified polyolefin (a) having a melting point of 120°C or lower and a weight-average molecular weight of 50,000 to 150,000; (B) a water-soluble or water-dispersible polyol resin; and (C) a pigment, and that the ingredient (A)/ingredient (B) weight ratio is from 20/80 to 85/15 on a solid basis and the ingredient (C) is contained in an amount of 0.5-200 parts by weight per 100 parts by weight of all solid resins in the composition. Also provided is a method of coating a plastic molding with the water-based primer composition.

Inventors:

NAGANO TOSHIAKI (JP)
TAKAHASHI TERUTAKA (JP)
SUGAI HIDEO (JP)

Application Number:

PCT/JP2005/015297

Publication Date:

February 23, 2006

Filing Date:

August 17, 2005

Export Citation:

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Assignee:

KANSAI PAINT CO LTD (JP)
NAGANO TOSHIAKI (JP)
TAKAHASHI TERUTAKA (JP)
SUGAI HIDEO (JP)

International Classes:

B05D7/02; C09D123/26; B05D7/24; C09D5/00; C09D133/00; C09D151/06; C09D161/20; C09D167/00; C09D175/04; C09D193/00

Foreign References:

JPH06336568A	1994-12-06
JP2004051808A	2004-02-19
JP2004115712A	2004-04-15
JPH1058567A	1998-03-03
JPH01168783A	1989-07-04
JP2004018635A	2004-01-22
JP2004156029A	2004-06-03
JPH05263036A	1993-10-12
JP2004331911A	2004-11-25

Other References: