Pigmented detergents
US3956163A · kind A · utility
5Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1973 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Aug 20, 1993 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pigmented detergents having improved shelf stability are provided by dispersing in liquid detergent a polymeric pigment made by an emulsion polymerization process comprising the steps of (1) emulsion polymerizing from about 0 to about 80 weight percent of total monomer in absence of emulsifier, (2) adding a nonionic surfactant, and (3) continuing emulsion polymerization of the remaining monomer charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.