Method for removing polymer films in the manufacture of aqueous compositions containing anionic amphiphilic polymers
US6984268B2 · kind B2 · utility
3Cited by
15References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2002 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Apr 14, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a method to facilitate the removal of adherent polymeric films from a hard surface occasioned by the evaporation of solvent from compositions containing an anionic amphiphilic polymer, the method comprising incorporating a phosphate ester surfactant into the compositions, and washing the film from the surface to which it adheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.