Water soluble monomers and polymers for protecting substrates from ultraviolet light
US7008618B1 · kind B1 · utility
24Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A UV-protective composition for treating substrates comprising one or more water-soluble, cationic, UV-absorbing polymers, wherein the cationic, UV-absorbing polymers are prepared by polymerizing one or more vinyl, allyl or acrylic monomers with one or more vinyl or acrylic monomers that absorb ultraviolet light radiation having a wavelength of about 200 to about 420 nm and a method of treating substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.