Defoamer composition
US5523019A · kind A · utility
13Cited by
26References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Nov 4, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/0404
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A defoamer composition useful in pulp and paper processes is disclosed which contains a hydrocarbon in a stable liquid state characterized by having no or minimal chemical reactive groups, and which is preferably a polyalphaolefin, as carrier fluid and a high density polymer as a defoaming agent. This composition excludes petroleum oil and ethylene-bis-stearamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.