Anthraquinone compounds and the production and use thereof
US4309180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jul 1, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/39
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are described new anthraquinone compounds which, in the form of the free acid, correspond to the formula I ##STR1## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms, the production and use thereof, and also dye solutions containing a solvent mixture consisting of one or more aprotic solvents, at least one glycol and/or glycol ether, and optionally water and further additives, which solutions contain in each case a mixture of two anthraquinone dyes which, in the form of the free acid, correspond to the formulae I and IV ##STR2## wherein the X's independently of one another are each a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, Y is hydrogen or is the same as X, and wherein the phenyl rings a can also be substituted by one or more halogen atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.