Hydrophobic oil absorbing polymers and process
US6770285B2 · kind B2 · utility
20Cited by
5References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrophobic, oil-absorbing polymeric compositions, prepared from high levels of hydrophobic monomers, are provided for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium. A reversible process is described for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium using oil-absorbing films, solid particles or dispersions of aqueous emulsion polymers prepared from hydrophobic monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.