Pressure-sensitive adhesive and patch employing the same
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Examples
example 1
[0052]
DURO-TAK ® (No. 387-2287)4.45g89%Ethyl acetate solution(solids conc.: 50%)Isopropyl myristate0.5g (solids)10%Boric acid [methanol solution (30 mg / mL)]0.05g 1%Total5.0g100%
[0053]In the above composition, the DURO-TAK® (No. 387-2287, manufactured by National Starch and Chemical Company), which is an acrylic polymer, and isopropyl myristate were mixed, 2 mL of ethyl acetate was added thereto, the mixture was stirred for 1 hour, the boric acid solution was then added thereto, and the mixture was stirred for 5 minutes to give an adhesive layer solution. This was spread out on a silicone-treated surface of an 80 μm thick polyethylene terephthalate (PET) film and crosslinked at 100° C. for 15 minutes to give an 80 μm adhesive layer. As a support, a 30 μm thick sand-matted PET film was laminated so that the sand-matted surface was in contact with the adhesive layer, thus giving a matrix preparation of the present invention. After the preparation thus obtained was stored at 65° C. for...
example 2
[0054]
DURO-TAK ® (No. 387-2287)2.9g (solids)58% Estradiol0.2g4%Norethisterone acetate0.35g7%Isopropyl myristate0.5g10% Polyvinylpyrrolidone1.0g20% Boric acid [methanol solution (30 mg / mL)]0.05g1%Total5.0g100%
[0055]In the above composition, the estradiol, norethisterone acetate, isopropyl myristate, and polyvinylpyrrolidone were mixed, 2 mL of ethanol was added thereto, the mixture was stirred for 2 hours, the DURO-TAK® and 2 mL of ethyl acetate were then added thereto and dissolved therein, and the mixture was further stirred for 3 hours until a uniform solution was obtained. The boric acid solution was added thereto and stirred for 5 minutes to give an adhesive layer solution. This was spread out in the same manner as in Example 1, and a support layer was laminated to give a matrix preparation of the present invention. After the preparation thus obtained was stored at 65° C. for 48 hours, the adhesive power of the preparation was measured using a probe tack tester, and it was foun...
PUM
Property | Measurement | Unit |
---|---|---|
Fraction | aaaaa | aaaaa |
Percent by mass | aaaaa | aaaaa |
Fraction | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap