Dye compound and method of making the compound
US8884012B1 · kind B1 · utility
3Cited by
11References
19Claims
0Family size
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Key dates
| Filing date | Aug 26, 2013 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/70
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A perimidine coupler of formula 1:where R and R′ are substituents independently selected from the group consisting of a hydrogen atom, C1 to C4 alkyl or a solubilizing moiety comprising a substituted or unsubstituted C10 to C70 hydrocarbyl group. At least one of R and R′ is not a hydrogen atom or C1 to C4 alkyl. R″ and R′″ can be independently selected from the group consisting of a hydrogen atom, C1 to C6 alkyl groups and halogens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.