Film-forming compositions and methods
US7323163B2 · kind B2 · utility
8Cited by
39References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Feb 4, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/802
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.