Synthesis of statistical microgels by means of controlled radical polymerisation
US7728088B2 · kind B2 · utility
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3References
23Claims
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Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Jan 13, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method of preparing statistical microgels. The inventive method comprises a step involving the radical polymerisation of a composition containing: at least one monoethylenically-unsaturated monomer, at least one multiethylenically-unsaturated monomer, a free radical source and a control agent. The invention also relates to first generation microgels thus prepared and all the compounds resulting from said microgels (next-generation microgels).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.