Title:
WATER-SOLUBLE OR WATER-REDISPERSIBLE PRESSURE-SENSITIVE ADHESIVE COMPOSITION
Document Type and Number:
Japanese Patent JP2624917
Kind Code:
B2
Abstract:
PURPOSE: To provide a pressure-sensitive adhesive which always has pressure- sensitive adhesiveness and is soluble or redispersible in water by copolymerizing an alkoxyethyl acrylate with styrenesulfonic acid.
CONSTITUTION: The title composition comprises a copolymer comprising 20-99wt.% alkoxyethyl acrylate (a) of formula I (wherein R is 1-4 C alkyl), 30-1wt.% styrenesulfonic acid (b) and 50-0wt.% other monomer (c) copolymerizable with monomers (a) and (b). Monomer (c) is used if necessary in order to control adhesive properties such as adhesiveness and cohesive force and properties such as water solubility and water redispersibility. Examples of monomer (c) particularly desirably used include acrylic acid, methacrylic acid and their derivatives, especially an acrylic acid/caprolactone adduct of formula II which can give a homoplymer of a glass transition temperature of -10°C or below.
Inventors:
Koichi Nakamura
Naoki Matsuoka
Konishi Toshiharu
Takeshi Sano
Hiroshi Wada
Naoki Matsuoka
Konishi Toshiharu
Takeshi Sano
Hiroshi Wada
Application Number:
JP26306691A
Publication Date:
June 25, 1997
Filing Date:
September 12, 1991
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
C09J7/04; C08F220/28; C09J7/02; C09J133/04; C09J133/14; (IPC1-7): C09J133/14
Domestic Patent References:
| JPH0320302A | ||||
| JPH02120381A | ||||
| JPS5871908A | ||||
| JPH0335075A | ||||
| JPS5476636A |
Attorney, Agent or Firm:
Kunio Araimoto