Cosmetic compositions containing di-block, tri-block, multi-block and radial block copolymers
US6827928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Jan 23, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The subject-matter of the present invention is a transfer-free composition comprising (a) at least one of a di-block, tri-block, multi-block and/or radial block copolymer and optionally (b) a film former or a mixture of film formers. The composition may comprise any one of a di-block, tri-block, multi-block or radial block copolymer or any mixture or blend of co-polymers. Cosmetic and pharmaceutical compositions of the invention result in a film with very good retention, good transfer resistant properties, and which does not migrate over time. The compositions have cosmetic properties which are improved in relation to those of the “transfer free” products of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.