Process for coloring organic material of high molecular weight
US4348239A · kind A · utility
1Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1980 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Jul 31, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3492
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the mass coloration of organic material of high molecular weight, which comprises the use of a mixture of anthraquinone compounds of the formula: ##STR1## wherein n is 1 or 2, R, if n is 1, represents a substituted or unsubstituted anthraquinone radical, and, if n is 2, R represents a radical of the formula: ##STR2## wherein R.sub.1 represents hydrogen, alkyl of 1 to 4 carbon atoms, phenyl or methylmercapto as colorant, having good thermostability, solubility when incorporated in the polymer melt, and resistance to the staining of other material during thermofixation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.