Microdispersions of hydroxamated polymers and methods of making and using them
US8685256B2 · kind B2 · utility
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11References
7Claims
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Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/0653
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Methods of producing microdispersions containing hydroxamated polymers by reacting water-in-oil microdispersions having vinyl polymers containing one or more pendant functional groups that react with hydroxylamine, with a hydroxylamine-free base substantially free of inorganic salt and containing less than 500 ppm hydrazine are disclosed herein, along with the microdispersions thereby obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.