Coatings useful for absorbing ultraviolet light
US5869185A · kind A · utility
34Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Jun 21, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein each A is independently a substituted or unsubstituted monocyclic aromatic radical wherein any substituents are hydrogen, halogen, alkoxy, C.sub.1-8 alkyl, or hydroxy, and R is hydrogen or a linear or branched aliphatic radical having less that about 10 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.