Surface active agent compositions containing polypeptides and lignin sulfonic acid
US4494994A · kind A · utility
9Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A surface active agent is comprised of lignin sulfonic acids, and optionally, an alkylaryl sulfonic free acid with at least 10 carbon atoms and a polypeptide having a molecular weight of about 2,500 to about 15,000. In addition, a disperse dye composition is provided which includes solid particles of a dye or pigment which have a particle size of less than 2 microns with the surface active agent disposed at the surface of the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.