UV-reflecting compositions
US8795829B2 · kind B2 · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Dec 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition containing polymeric particles. The polymeric particles have an average particle diameter from 30 to 300 nm and a Vicker's scale hardness from 100 to 700 Kgf/mm2. The composition also contains a film-forming polymer having Tg no greater than 80° C. The refractive index difference between the polymeric particles and the film-forming polymer is at least 0.04.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.