Title:
SYNTHETIC RESIN EMULSION, EASILY WATER-SWELLABLE PRESSURE-SENSITIVE ADHESIVE COMPOSITIONS CONTAINING THE SAME AND PROCESS FOR PRODUCTION OF THE EMULSION
Document Type and Number:
WIPO Patent Application WO/2003/057738
Kind Code:
A1
Abstract:
A synthetic resin emulsion containing polymer particles having core-shell structure wherein the shell is made of a copolymer of an unsaturated carboxylic acid and a hydrophilic comonomer and the core is made of a copolymer produced from a monomer mixture consisting of a radical-polymerizable main monomer and a radical-polymerizable functional monomer which are so selected as to form a copolymer having a glass transition temperature (Tg) of -20°C or below, characterized by being produced by adding the above monomer mixture for core formation and a pH regulator to an aqueous copolymer solution which is obtained by copolymerizing an unsaturated carboxylic acid with a hydrophilic comonomer in an aqueous medium and is not neutralized and then polymerizing the monomer mixture. The use of the synthetic resin emulsion gives pressure-sensitive adhesives which are excellent in pressure-sensitive adhesion properties such as bond strength, cohesive force, and tack and can be easily swelled in water even without alkali treatment.
Inventors:
YOSHIMURA NOBUYOSHI (JP)
MORIYA YUJI (JP)
MORIYA YUJI (JP)
Application Number:
PCT/JP2002/013859
Publication Date:
July 17, 2003
Filing Date:
December 27, 2002
Export Citation:
Assignee:
CLARIANT INT LTD (CH)
YOSHIMURA NOBUYOSHI (JP)
MORIYA YUJI (JP)
YOSHIMURA NOBUYOSHI (JP)
MORIYA YUJI (JP)
International Classes:
C09J7/02; C08F2/22; C08F2/30; C08F2/44; C08F265/00; C08F265/02; C08F265/04; C08F265/06; C08F291/00; C08L51/00; C09J133/04; C09J133/06; C09J151/00; C09J151/06; (IPC1-7): C08F2/22; C08F2/44; C09J7/02; C09J133/04; C09J151/06
Foreign References:
| JP2003003037A | 2003-01-08 | |||
| JPH10237142A | 1998-09-08 | |||
| JPH1046117A | 1998-02-17 | |||
| JPH09169806A | 1997-06-30 |
Other References:
See also references of EP 1479699A4
Attorney, Agent or Firm:
Yoshitake, Kenji (Fuji Bldg. 2-3 Marunouchi 3-chome Chiyoda-ku, Tokyo, JP)
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