Low melting point and/or volatile active plaster

PCT No. PCT/DE93/00638 Sec. 371 Date Feb. 27, 1995 Sec. 102(e) Date Feb. 27, 1995 PCT Filed Jul. 17, 1993 PCT Pub. No. WO94/02123 PCT Pub. Date Feb. 3, 1994.The invention concerns a patch for the controlled release of readily available volatile active substances to the skin, the patch comprising a b...

Full description

Saved in:
Bibliographic Details
Main Authors H.M. WOLFF, D.W. SCHADT, K. NAGELS
Format Patent
LanguageEnglish
Published 13.06.2001
Edition7
Subjects
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
HUMAN NECESSITIES
HYGIENE
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
Online AccessGet full text

Cover

More Information
Summary:PCT No. PCT/DE93/00638 Sec. 371 Date Feb. 27, 1995 Sec. 102(e) Date Feb. 27, 1995 PCT Filed Jul. 17, 1993 PCT Pub. No. WO94/02123 PCT Pub. Date Feb. 3, 1994.The invention concerns a patch for the controlled release of readily available volatile active substances to the skin, the patch comprising a back layer and, bonded to it, a water-insoluble adhesive film consisting of a pressure-sensitive fusion adhesive, plus a detachable film covering the adhesive film. The patch is characterized in that the pressure-sensitive fusion adhesive contains a triple-block copolymer of polystyrene block copoly(ethylene/butylene) block polystyrene (SEBS) at a concentration of 10 to 80% by wt., and an active substance which, at the temperature at which the adhesive bonds, is a readily volatile liquid, and which is present at a concentration of 2.5 to 25% by wt.
Bibliography:Application Number: CN19931016563