| US 7,501,358 B2 | ||
| Adhesive preparation | ||
| Junichi Saito, Ibaraki (Japan); Akinori Hanatani, Ibaraki (Japan); and Hitoshi Akemi, Ibaraki (Japan) | ||
| Assigned to Nitto Denko Corporation, Osaka (Japan) | ||
| Filed on Apr. 12, 2006, as Appl. No. 11/402,004. | ||
| Claims priority of application No. 2005-116081 (JP), filed on Apr. 13, 2005. | ||
| Prior Publication US 2006/0234581 A1, Oct. 19, 2006 | ||
| Int. Cl. B32B 27/04 (2006.01) | ||
| U.S. Cl. 442—151 [442/149; 428/32.79] | 3 Claims |
| 1. An adhesive preparation comprising a support made of a cloth, wherein said cloth is a knitted fabric made of a synthetic
fiber, and a pressure sensitive adhesive layer formed on one surface of the support, which comprises a pressure sensitive
adhesive and a drug, wherein said pressure sensitive adhesive layer is directly laminated on said cloth, wherein said pressure
sensitive adhesive comprises an acrylic copolymer obtained by copolymerization of a monomer mixture comprising (meth)acrylic
acid alkyl ester as a main component, wherein said acrylic copolymer is crosslinked with a crosslinking agent, and wherein
a mass (CW) per unit area of said support is 60-160 g/m2,
a ratio (CW/AW) of a mass (CW) per unit area of the above-mentioned support and a mass (AW) per unit area of the above-mentioned
pressure sensitive adhesive layer is 1.0-5.0,
an adhesive layer-free surface of said support has a static friction coefficient of 0.25-0.75, and a 20% modulus (AM) in one
direction of the adhesive preparation and a 20% modulus (EM) in the direction perpendicular to said direction are each 0.5-1.5
N/cm, and the ratio thereof (AM/EM) is 0.5-2.0.
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