Pigments for toiletries
US4533484A · kind A · utility
8Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Oct 6, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods of rendering water-soluble dyes insoluble comprise contacting a polymer containing X-alkyl-2-oxazolidinone with the desired dye or dyes. The essentially water-insoluble pigments so prepared are useful in a wide variety of uses and, in particular, in coloring soaps, toothpaste, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.