Weather-resistant dye and use thereof
US8591641B2 · kind B2 · utility
0Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Mar 6, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is related to a weather-resistant dye and use thereof, which contains in molecules thereof not only chromophoric parent D, but also electron-accepting group Q which is linked with dye parent D through non-conjugated carbon link L to constitute D-L-Q dye molecule; the electron-accepting group Q has such a HOMO energy level that is lower than the HOMO energy level of the dye chromophoric parent D. The dye has sun-resistance and anti-ozone performances, which can be used as colorant in the ink, dope, lacquer, toner powder for laser printing, marker, paper, fabric, glass, porcelain or polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.