Sunblocking polymers and their formulation
US5741924A · kind A · utility
26Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jun 14, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel polymeric compositions and their intermediates are provided, providing for broad range protection from ultraviolet radiation. Acryl polymers comprising at least two different ultraviolet absorbing moieties having different light absorbing ranges are employed in conjunction with another hydrophilic monomer to provide sunscreen formulations for invisibility, and enhanced protection, without deleterious effects in the dermis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.