Water soluble or dispersible film covered alkaline composition
US5316688A · kind A · utility
112Cited by
24References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1991 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | May 14, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/044
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is an alkaline cleaning system which includes an alkaline detergent composition having a pH greater than 10.5 when diluted to a 1 wt-% aqueous solution, and an alkali stable continuous polymeric film dispersible or soluble in aqueous liquids covering the detergent composition. The invention also includes methods of using the alkaline cleaning system by applying an aqueous diluent automatically (by machine) or manually through partial or complete dissolution of the film covered solid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.