Process for preparing concentrated detergent compositions for use in automatic dishwashers
US5366653A · kind A · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1993 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | May 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a concentrated detergent composition useful in automatic machine dishwashers comprising preparing a dry mixture of a thickening polymer and a sodium trimetaphosphate builder, then adding the dry blend to water and subsequently adding a potassium hydroxide base to form a homogeneous solution. Sodium silicate and optional ingredients are then added to the process. Compositions resulting from the process contain a K+/Na+ weight ratio of greater than about 0.5 to about 1 and a viscosity of from 1,800 to about 3,500 cps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.