Process for the coloration of polyamides with pigments derived from carboxyamido-polyimides
US4089836A · kind A · utility
3Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1975 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Aug 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Linear polyamides are colored with pigments of the formula: ##STR1## wherein R represents the tetravalent residue of a substituted mono- or poly-cyclic aromatic hydrocarbon or a substituted or unsubstituted perinone, R.sub.1 represents a substituted or unsubstituted aliphatic, benzene, naphthalene or heterocyclic radical, R.sub.2 represents a substituted or unsubstituted aliphatic, aromatic or heterocyclic radical and Y represents an amino or haloformyl group. A copolycondensate results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.