Treated substrate with improved transfer efficiency of topical application
US6939553B2 · kind B2 · utility
9Cited by
22References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2001 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Apr 19, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composite material including a substrate with a first and a second surface, a boundary layer which is comprised of one or more compositions, and a topical application. The boundary layer is applied on the first surface of the substrate, and the topical application is applied to a surface of the boundary layer opposite of the substrate. Transfer efficiency of the topical application is enhanced as the transfer forces necessary to separate the topical application from the boundary layer are lower than the transfer forces necessary to separate the substrate from the boundary layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.