Method for making an automatic dishwashing detergent powder by spraying drying and post-adding nonionic detergent
US4931203A · kind A · utility
37Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Mar 27, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/0088
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free flowing, stable, water-soluble, powdered automatic dishwashing detergent with superior solubility, handling and storage characteristics is provided. The compositions comprises an inorganic polyphosphate carrier onto which is absorbed a nonionic detergent. The "loaded" carrier is mixed with powdered silicate and the other usual adjuvants such as bleach, pigment, etc. High levels of detergent are possible without adversely affecting the aforementioned advantages and superior characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.