WATER-BASED COATING COMPOSITION FOR INNER SURFACE OF CAN AND METHOD OF COATING INNER SURFACE OF CAN

Title:

WATER-BASED COATING COMPOSITION FOR INNER SURFACE OF CAN AND METHOD OF COATING INNER SURFACE OF CAN

Document Type and Number:

WIPO Patent Application WO/2002/083801

Kind Code:

A2

Abstract:

A water-based coating composition for the inner surface of cans which comprises an aqueous medium and dispersed therein an acrylic-modified polyester resin (C) obtained by graft-polymerizing one or more polymerizable unsaturated vinyl monomers (B) comprising a carboxylated polymerizable unsaturated monomer with a polyester resin (A) having a number-average molecular weight of 2,000 to 100,000 and a hydroxyl value of 10 to 120 mg-KOH/g and containing ethylenically unsaturated double bonds, the resin (C) being in a neutralized form, and which further contains a resol resin crosslinking agent (D) in an amount of 1 to 40 parts by weight per 100 parts by weight of the acrylic-modified polyester resin (C); and a method of coating the inner surface of a can with the water-based coating composition.

Inventors:

HIROSE YUJI (JP)
NISHIDA REIJIRO (JP)
INOMATA KEIJI (JP)
YOKOI HIDEO (JP)

Application Number:

PCT/JP2002/003320

Publication Date:

October 24, 2002

Filing Date:

April 03, 2002

Export Citation:

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Assignee:

KANSAI PAINT CO LTD (JP)
HIROSE YUJI (JP)
NISHIDA REIJIRO (JP)
INOMATA KEIJI (JP)
YOKOI HIDEO (JP)

International Classes:

C08F283/01; C08F289/00; C09D5/02; C09D151/08; C09D161/04; B05D7/22; (IPC1-7): C09D151/08; B05D7/22; B05D7/24

Domestic Patent References:

WO1979000732A1

1979-10-04

Foreign References:

JPH07145342A	1995-06-06
JPS56151769A	1981-11-24

Other References: