Method for making a product adhere to a surface
US6277404A · kind A · utility
12Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Oct 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Method of making a product adhere to a surface, in which a composition is brought into contact with the surface, the composition containing the product incorporated in substantially spherical, multilamellar vesicles, with a diameter of between 0.1 and 100 .mu.m, and including concentric membranes based on at least one surfactant and separated by a solvent medium. Each of the vesicles has an onion-like structure formed of a succession of concentric bi-layers extending from each vesicle center to its periphery, and containing therein at least one cationic agent, resulting in the vesicles carrying a positive overall charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.