Title:
感圧型接着剤の水白化耐性を改善する方法
Document Type and Number:
Japanese Patent JP2004534893
Kind Code:
A
Abstract:
Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) a hydrophobic monomer mixture of at least one alkyl acrylate or alkyl methacrylate ester of an alcohol wherein the alkyl portion of the alcohol is linear or branched and contains at least 4 carbon atoms, and at least one styrenic monomer, wherein the styrenic monomer is up to about 30 wt. % of the total hydrophobic monomer mixture, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt. % of at least one partially hydrophilic monomer selected from alkyl acrylate or alkyl methacrylate esters of an alcohol wherein the alkyl portion of the alcohol has 1 to 2 carbon atoms, N-vinyl-2-pyrrolidone, or mixtures thererof, and (iv) a water-soluble or water-dispersible polymerizable surfactant selected from compounds having a terminal allyl amine moiety, polyoxyalkylene-1-(allyloxymethyl) alkyl ether sulfate salts, or mixtures thereof, and the average particle size of the polymer is less than or equal to 200 nm. Also disclosed are processes for preparing same.
Inventors:
Chiang, Augustain Tay
Guo, Ji Young-Shin
Pernetskell, Tyball
Guo, Ji Young-Shin
Pernetskell, Tyball
Application Number:
JP2003512285A
Publication Date:
November 18, 2004
Filing Date:
July 11, 2002
Export Citation:
Assignee:
Soliuteia Incorporated
International Classes:
C09J133/08; C08F220/18; C09J11/02; C09J11/08; C09J133/06; (IPC1-7): C09J133/08; C09J11/02; C09J11/08
Attorney, Agent or Firm:
Yoshio Kawaguchi
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura