1,3,4,-thiadiazolylazo dyes and ink compositions containing the same
US6461416B1 · kind B1 · utility
0Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/0092
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dye of Formula (1): R1 and D are each independently H or a substituent;R2 and R3 are each independently optionally substituted alkyl, aryl or aralkyl, or R2 and R3 together with the carbon atom to which they are attached form an optionally substituted ring;R4 is H or optionally substituted alkyl, aryl or aralkyl; andR5 and R6 are each independently optionally substituted alkyl, aryl or aralkyl.Also claimed are compositions containing the dye, water and a water-dissipatable polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.