Patch and patch preparation

Details Patch and patch preparation Patch and patch preparation

A - Human Necessities

61

K

A61K 9/70 (2006.01) A61K 47/32 (2006.01)

Patent

CA 2698996

Provided are a patch and a patch preparation having an adhesive layer on at least one surface of a support, and particularly, a patch and a patch preparation superior in skin adhesive force, and causing less adhesive residue on the skin surface. A patch having a support and an adhesive layer formed on at least one surface of the support, wherein the adhesive layer contains an elastomer obtained by crosslinking a polymer having a butadiene skeleton in the presence of an organic peroxide, and the ratio of the weight of a toluene-insoluble component in the adhesive layer to the total weight of the adhesive layer is 5 - 32 wt%.

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