Adhesive for dermal patch and production process thereof

An adhesive, patch technology, applied in the direction of film/sheet adhesive, adhesive type, ester copolymer adhesive, etc.
CN1950474AActive Publication Date: 2007-04-18RESONAC CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RESONAC CORPORATION
Publication Date
2007-04-18

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Abstract

The present invention provides an adhesive for a dermal patch comprising an acrylate-base polymer in which the repetitive unit is represented by the formulae (1), (2) and (3): wherein M represents NH4<> or an alkali metal, and X represents an unsaturated monomer unit other than the formulae (1) and (2), containing 5 mole or more of acrylic acid (salt) represented by the formula (1) as a monomer unit, in which the content of ss-hydroxypropionic acid (salt) is 5,000 ppm or less per solid content of the polymer and having a stable shape retainability, adhesion and percutaneous absorptivity of medicines; an production process thereof; and an adhesive composition for a dermal patch containing the adhesive for a dermal patch, an aluminum compound and water.
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Description

[0001] Cross References to Related Applications

[0002] This application is an application filed pursuant to 35 U.S.C. § 111(a), which required 35 U.S.C. § 119(e)(1) in May 2004 under 35 U.S.C. Priority to U.S. Provisional Application Serial No. 60 / 569,622 filed on the 11th. technical field

[0003] The present invention relates to an adhesive for a skin patch comprising an acrylate-based polymer as a main component, such as a percutaneous absorption type preparation for external use and the like. More specifically, the present invention relates to an acrylate-based polymer whose physical properties such as adhesiveness (which is important as a skin patch) have less divergence and can ensure stable quality, and also relates to its preparation method. Background technique

[0004] In general, aqueous-type skin patches such as plasters are formed by ionically cross-linking sodium polyacrylate, polyacrylic acid, acrylic acid-sodium acrylate copolymer, cross-linked polyacryli...

Claims

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