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Title:
NONAQUEOUS PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PATCHES AND PROCESS FOR PRODUCTION OF PATCHES
Document Type and Number:
WIPO Patent Application WO/2007/126067
Kind Code:
A1
Abstract:
A nonaqueous pressure-sensitive adhesive composition characterized by containing both a non-water-soluble polymer (A) having functional groups capable of forming crosslink points with polyvalent metal ions and a polyvalent metal compound (B); patches obtained by laminating a substrate with the composition; and a process for the production of patches, characterized by comprising preliminarily dissolving a polyvalent metal compound (B) and a chelating agent (C) capable of forming a chelate with the compound (B) in a water-containing solvent, adjusting the pH of the obtained solution to 7 or above, mixing the resulting solution with a non-water-soluble polymer (A) having functional groups capable of forming crosslink points with polyvalent metal ions to prepare an aqueous dispersion, applying the dispersion on a liner or a substrate, and drying the resulting coating to form a nonaqueous pressure-sensitive adhesive layer thereon.

Inventors:
GOTO HAJIME (JP)
TAGUCHI NOBUYA (JP)
ASANUMA TAKEYUKI (JP)
Application Number:
PCT/JP2007/059206
Publication Date:
November 08, 2007
Filing Date:
April 27, 2007
Export Citation:
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Assignee:
LION CORP (JP)
GOTO HAJIME (JP)
TAGUCHI NOBUYA (JP)
ASANUMA TAKEYUKI (JP)
International Classes:
C09J201/00; A61K9/70; A61K47/32; C09J7/02; C09J133/06
Foreign References:
JPS57176908A1982-10-30
JPH03220120A1991-09-27
JP2002272831A2002-09-24
JPH05503863A1993-06-24
JPH02311549A1990-12-27
JP2006225522A2006-08-31
Attorney, Agent or Firm:
SHIGA, Masatake et al. (Yaesu Chuo-k, Tokyo 53, JP)
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