ADHESIVE PATCH FOR EXTERNAL USE ON SKIN - HISAMITSU PHARMACEUTICAL CO

Title:

ADHESIVE PATCH FOR EXTERNAL USE ON SKIN

Document Type and Number:

WIPO Patent Application WO/2005/037946

Kind Code:

A1

Abstract:

A pressure-sensitive adhesive composition which comprises three ingredients, i.e., polyisoprene, a styrene/isoprene/styrene copolymer, and solid polyisobutylene, in a proportion of (10-60)/(10-50)/(20-60) by weight and further contains a non-solid isobutylene polymer and a tackifier, characterized in that the amount of the non-solid isobutylene polymer is 1 to 30 pts.wt., excluding 30 pts.wt., per 100 pts.wt. of the sum of the three ingredients, i.e., the polyisoprene, styrene/isoprene/styrene copolymer, and solid polyisobutylene. When used in an adhesive patch for external use on the skin, the composition has satisfactory tackiness regardless of whether the temperature of the surrounding air is high or low, has excellent long-term storage stability, retains the necessary cohesive force, and does not unnecessarily irritate the skin.

Inventors:

SHIRAI MASATO (JP)
YOSHINAGA TAKAAKI (JP)
WAKAMATSU MASATO (JP)

Application Number:

PCT/JP2004/015481

Publication Date:

April 28, 2005

Filing Date:

October 20, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HISAMITSU PHARMACEUTICAL CO (JP)
SHIRAI MASATO (JP)
YOSHINAGA TAKAAKI (JP)
WAKAMATSU MASATO (JP)

International Classes:

A61K9/70; C09J109/00; C09J123/22; C09J153/02; C08L23/22; C08L53/02; (IPC1-7): C09J109/00; A61K9/70; A61K47/32; C09J123/22; C09J153/02

Domestic Patent References:

WO1994011437A1

1994-05-26

Foreign References:

JP2003517343A	2003-05-27
JP2001514051A	2001-09-11
JP2003063954A	2003-03-05
JP2002363069A	2002-12-18
EP1186644A2	2002-03-13
JP2002069405A	2002-03-08
JPH08506127A	1996-07-02
EP1238664A1	2002-09-11

Other References: