Preparation of leuco dyes
US4775754A · kind A · utility
11Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Oct 7, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B19/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Oxazine, thiazine and diazine leuco dyes are synthesized through a reaction using a dicyclohexylcarbodiimide adduct. The adducts are themselves novel compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.