The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
Mar. 05, 2001
Osafumi Hidaka, Tokyo, JP;
Akiko Ohata, Tokyo, JP;
Osafumi Hidaka, Tokyo, JP;
Akiko Ohata, Tokyo, JP;
Tiejin Limited, Osaka, JP;
Abstract
A stretch plaster comprising a support membrane having a thickness of 1 to 50 μm and a drug containing adhesive layer having a thickness of 3 to 400 μm, wherein (i) the support membrane comprising a copolymer of 0 to 90% by weight of vinyl acetate, 10 to 97% by weight of alkyl (meth)acrylate having 3 to 14 of a mean carbon number of alkyl group and 0 to 15% by weight of (meth)acrylic acid, (ii) the copolymer is cross-linked by polyvalent metal such as aluminum or a poly-functional chain compound, wherein the cross-linking ratio is 20% or more of the theoretical total number of carboxyl group of the copolymer when the polymer is cross-linked by the polyvalent metal such as aluminum, and is 1 to 10% expressed by copolymerized ratio of the poly-functional chain compound when the copolymer is cross-linked by poly-functional chain compound,(iii) the support membrane has 150 g or less of self adhesion shown by an adhesion between the support membranes and(iv) the support membrane has 70% or more of an elasticity recovery when it stretches 10% of itself.