Aqueous adhesive agent composition

Patent metadata

Field	Value
Publication number	US-9359536-B2
Application number	US-201013377928-A
Country	US
Kind code	B2
Filing date	Jun 16, 2010
Priority date	Jun 18, 2009
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

Disclosed is an aqueous adhesive agent composition which has no concern about environmental safety and can be used as an adhesive agent composition for automobile interior materials. The aqueous adhesive agent composition comprises (A) an acid-modified polyolefin resin and (B) a core-shell-type curing agent.

First claim

The invention claimed is:

1. An aqueous adhesive composition, comprising:
(A) an acid-modified polyolefin-based resin,
(B) a core-shell hardener having a shell consisting of an acrylic copolymer having a glass transition temperature of −30° C. to 100° C. and a core consisting of an epoxy group-containing resin compound or a monomer thereof capable of cross-linking to the acid-modified polyolefin-based resin, and
(C) an amine-based hardener having a melting point of 60° C. or higher, in an amount such that 0.005-1 equivalent groups are present based on 1 equivalent of carboxyl groups in the acid-modified polyolefin-based resin, and selected from at least one of the group consisting of 4,4′-diaminodiphenylmethane, 2,4′-diaminodiphenylmethane, 3,3′-diaminodiphenylmethane, 3,4′-diaminodiphenylmethane, 2,2′-diaminobiphenyl, 2,4′-diaminobiphenyl, 3,3′-diaminobiphenyl, 2,4-diaminophenol, 2,5-diaminophenol, o-phenylenediamine, m-phenylenediamine, 2,3-tolyenediamine, 2,4-tolylenediamine, 2,5-tolylenediamine, 2,6-tolylenediamine, 3,4-tolylenediamine, 1,12-dodecanediamine, 1,10-decanediamine, 1,8-octanediamine, 1,14-tetradecanediamine, 1,16-hexadecanediamine, dodecanediohydrazide, 1,3-bis(hydrazinocarboethyl)-5-isopropylhydantoin having melting point 121-123° C. of the formula

a compound having melting point 174-181° C. of the formula

and a compound having melting point 147-155° C. of the formula

wherein the aqueous adhesive composition does not omit any solvent gas when applying or drying.

2. The aqueous adhesive composition according to claim 1 , wherein a weight ratio of the core and the shell in the core-shell hardener (B) is from 10:90 to 90:10.

3. The aqueous adhesive composition according to claim 1 , for an automobile interior part.

4. The aqueous adhesive composition according to claim 1 , for a precoat adhesive.

5. An aqueous adhesive composition, comprising:
(A) an acid-modified polyolefin-based resin,
(B) a core-shell hardener having a shell consisting of an acrylic copolymer having a glass transition temperature of −30° C. to 100° C. and a core consisting of an epoxy group-containing resin compound or a monomer thereof capable of cross-linking to the acid-modified polyolefin-based resin, and (ii) enabling use of the aqueous adhesive composition in a vacumm molding process, and
(C) an amine-based hardener having a melting point of 60° C. or higher, in an amount such that 0.005-1 equivalent groups are present based on 1 equivalent of carboxyl groups in the acid-modified polyolefin based resin, and selected from at least one of the group consisting of 4,4′-diaminodiphenylmethane, 2,4′-diaminodiphenylmethane, 3,3′-diaminodiphenylmethane, 3,4′-diaminodiphenylmethane, 2,2′-diaminobiphenyl, 2,4′-diaminobiphenyl, 3,3′-diaminobiphenyl, 2,4-diaminophenol, 2,5-diaminophenol, o-phenylenediamine, m-phenylenediamine, 2,3-tolylenediamine, 2,4-tolylenediamine, 2,5-tolylenediamine, 2,6-tolylenediamine, 3,4-tolylenediamine, 1,12-dodecanediamine, 1,10-decanediamine, 1,8-octanediamine, 1,14-tetradecanediamine, 1,16-hexadecanediamine, dodecanediohydrazide, 1,3-bis(hydrazinocarboethyl)-5-isopropylhydantoin having melting point 121-123° C. of the formula

a compound having melting point 174-181° C. of the formula

and a compound having melting point 147-155° C. of the formula

wherein the aqueous adhesive composition does not omit any solvent gas when applying or drying.

Assignees

• Murai Takefumi
• Shibata Yoshimi
• Sunstar Engineering Inc

Inventors

• Murai Takefumi
• Shibata Yoshimi

Classifications

• C09J133/02

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof · CPC title

• C09J133/06 Primary

  of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical · CPC title

• C08L2666/04

  Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof · CPC title

• C08L23/26

  modified by chemical after-treatment (saponified copolymers C08L23/0861; unsaturated acid salts C08L23/0876) · CPC title