Aqueous dispersion of polymer particles, film-forming composition containing same and uses thereof
US9642790B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 7, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jul 9, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention concerns an aqueous dispersion of multiphase polymer particles in which the polymer particles comprise at least two separate phases, the internal phase being formed by polymerization in the presence of a crosslinking agent, said dispersion further comprising a surfactant chosen from amino acid derivatives. The invention also concerns a film-forming composition comprising said aqueous dispersion of polymer particles. The invention also relates to a film obtained after application of said film-forming composition. This film dries very quickly, is water resistant, and has good adhesion, elasticity and breaking strength properties. The invention also concerns the use of said film for protecting surfaces of the skin or mucous membranes, wounds, injuries and/or skin disorders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.