Stabilization of silicate solutions
US5433885A · kind A · utility
16Cited by
47References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1993 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Jun 10, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/122
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to aqueous cleaning compositions such as for household use or for cleaning electronic circuit assemblies comprising alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned and an anionic polymer comprising a high molecular weight polyacrylic acid which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.