Method of producing a silicone defoamer composition
US4639489A · kind A · utility
54Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1985 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | May 29, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/0409
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Foam control compositions are prepared by reacting a mixture of components which include a polyorganosiloxane fluid bearing one or more hydroxyl and/or hydrocarbonoxy groups, a resinous siloxane or a silicone resin-producing silicon compound, a finely divided filler material and a catalyst to promote the reaction of the listed components. The compositions can optionally contain a polyorganosiloxane fluid which is substantially free of reactive groups and/or a polyorganosiloxane fluid bearing two or more hydroxyl and/or hydrocarbonoxy groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.