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US 10,292,941 B2Granted
Adhesive patch
AssigneeHitsamitsu Pharmaceutical Co., Inc.
InventorsKentaro Nakashima, Masahiro Sato, Yasuhisa Kose, Takaaki Yoshinaga
Life of this patent
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Abstract
Disclosed is an adhesive patch having a support and an adhesive agent layer laminated on the support, wherein the support consists of spunlace nonwoven fabric, the adhesive agent layer comprises an SIS block copolymer and liquid paraffin, the adhesive patch has a first direction, which is a predetermined reference axis direction, and a second direction, which is orthogonal to the first direction, and a bending resistance in the first direction of the adhesive patch is 18 to 30 mm.
Claims6
An adhesive patch consisting essentially of:
- a support;
- and
- an adhesive agent layer laminated on the support, wherein
- the support consists of spunlace nonwoven fabric,
- the adhesive agent layer comprises, based on a total mass of the adhesive agent layer, a styrene-isoprene-styrene block copolymer in an amount of 23.7 to 32.5% by mass, liquid paraffin in an amount of 17.9 to 27.5% by mass, 9 to 11% by mass of methyl salicylate, 3 to 6% by mass of menthol, 3 to 12% by mass of polyisobutylene, and 17 to 25% by mass of a terpene resin, and a mass ratio of the styrene-isoprene-styrene block copolymer to the liquid paraffin in the adhesive layer is 1 to 1.65:1,
- the adhesive patch has a first direction, which is a predetermined reference axis direction, and a second direction, which is orthogonal to the first direction, and
- a bending resistance in the first direction of the adhesive patch measured by a 45° cantilever method defined in JIS L 1085:1998 is 18 to 30 mm.
4 more elements
Dependencies are inferred from the claim text.