Fluoran compounds
US4694088A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Nov 25, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fluoran compound represented by general formula (I): ##STR1## wherein R.sub.1 represents a straight or branched alkyl group having 1 to 8 carbon atoms, a cyclohexyl (C.sub.1 -C.sub.2) alkyl group, a cyclohexyl group, a phenyl group which may be substituted by chlorine, an alkoxyalkyl group, a benzyl group which may be substituted by chlorine, or a hydrogen atom;, R.sub.2 represents a hydrogen atom, a halogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group which may be substituted by chlorine, a benzyl group which may be substituted by chlorine, a lower alkoxy group or a lower alkoxyalkyl group; R.sub.3 represents a hydrogen atom, a chlorine atom, a fluorine atom or a lower alkyl group having 1 to 4 carbon atoms; and n is 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.