Lignin-containing dye dispersing composition
US4131564A · kind A · utility
25Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1978 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | May 24, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dye dispersing composition having improved fiber staining characteristics, lower viscosity and improved heat stability is disclosed which comprises, a mixture of from 97% to 10% by weight of a sulfonated lignin and from 3% to 90% by weight of an aromatic sulfonic acid or a soluble compound obtained by condensing formaldehyde or its equivalent with an aromatic sulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.