A transdermal patch

Details A transdermal patch A transdermal patch

A - Human Necessities

61

K

A61K 9/70 (2006.01) A61K 31/196 (2006.01) A61K 47/12 (2006.01) A61K 47/14 (2006.01) A61K 47/32 (2006.01) A61K 47/34 (2006.01)

Patent

CA 2476622

A transdermal patch comprising a backing 2 and an adhesive layer 3 laminated on the backing 2, wherein the adhesive layer 3 comprises a rosin-based resin and petroleum resin as a tackifier, the total compounding amount of the rosin-based resin and the petroleum resin is in a range of 15 % by mass to 50 % by mass, and compounding amount of the petroleum resin is 1/3 times by mass to 4 times by mass as that of the rosin-based resin.

L'invention concerne un plâtre de type à absorption percutanée (1) comprenant un support (2) et une couche adhésive (3) appliquée sur ce support (2), la couche adhésive (3) contenant une résine de type colophane et une résine de pétrole dans des proportions impliquant le mélangeage de la résine de type colophane et de la résine de pétrole en proportion totale de 15 % en masse à 50 % en masse, la proportion de mélangeage en masse de la résine de pétrole étant de 1/3 à quatre fois celle de la résine de type colophane.

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