Stabilized polysiloxane-polyglycol foam inhibitors for mineral oils
US3951832A · kind A · utility
3Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Nov 13, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2229/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention concerns the preparation of stabilized polydimethylsiloxane-polyalkylene glycol block copolymers complexed with alkyl phenols. The resultant complexes have improved storage stability and are soluble in mineral oils. Solutions of the complexes in mineral oil exhibit better foam-inhibition than do oil dispersions of the uncomplexed polymers. In addition the oil-soluble complexes have improved extreme pressure properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.