Defoamer composition
US4008173A · kind A · utility
6Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1975 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Apr 21, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/0409
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composition containing finely divided synthetic, precipitated amorphous metal-silicate and an acid; said composition having a pH of 2 to 5 being suitable for use as a base for defoamers for aqueous systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.