Title:
PRESSURE−SENSITIVE ADHESIVE FOR THE SKIN AND TAPES OR SHEETS FOR THE SKIN MADE BY USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/014247
Kind Code:
A1
Abstract:
The invention provides a pressure−sensitive adhesive for the skin excellent in pressure−sensitive adhesiveness to the human skin and repeelability therefrom, which does not cause the horny layer to be torn away in peeling and is lowly irritant to the skin&semi and tapes or sheets made by using the same. The pressure−sensitive adhesive is characterized by comprising (a) 100 parts by weight of a copolymer which is prepared from an olefinic macromonomer and a vinyl monomer and whose molecular weight (in terms of polystyrene and as determined by gel permeation chromatography (GPC)) has a two−peak distribution (with the proviso that when the copolymer is to be post−cured, the distribution is one as determined before the post cure) and (b) 20 to 250 parts by weight of a softener which is compatible with the copolymer and liquid or pasty at room temperature and has a boiling point of 250 °C or above (with the proviso that when the content of the softener (b) exceeds 80 parts by weight, the copolymer must be post−cured).
Inventors:
KOHARA MINORU (JP)
Application Number:
PCT/JP2002/008153
Publication Date:
February 20, 2003
Filing Date:
August 08, 2002
Export Citation:
Assignee:
COSMED CO LTD (JP)
KOHARA MINORU (JP)
KOHARA MINORU (JP)
International Classes:
A61K9/70; A61L15/42; A61L15/58; C08F255/02; C08F290/04; C08F290/14; C08L51/00; C08L51/06; C09J123/24; C09J151/00; C09J151/06; C08K5/00; C08L91/00; (IPC1-7): C09J157/00; A61K9/70; A61K47/32
Foreign References:
| JP2001164211A | 2001-06-19 | |||
| JP2000001653A | 2000-01-07 | |||
| JP2001288438A | 2001-10-16 | |||
| JP2002121522A | 2002-04-26 |
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