Process for making granular detergent composition
US4083813A · kind A · utility
5Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/92
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of spray-dried granular detergent compositions containing an ethoxylated nonionic surfactant and a zwitterionic surfactant, wherein the degradation of the zwitterionic surfactant during processing is minimized, is disclosed. In the process, the nonionic and zwitterionic components are intimately mixed, in the absence of alkaline components, prior to their addition to an aqueous alkaline crutcher mix, which is formed into detergent granules by spray-drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.