Preparation of multimodal polymer dispersions using polymeric stabilizer, and use thereof
US7358297B2 · kind B2 · utility
1Cited by
6References
21Claims
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Key dates
| Filing date | Aug 12, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Apr 22, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A description is given of a process for preparing bimodal or multimodal polymers from olefinically unsaturated monomers in an aqueous medium.The process features the introduction as initial charge of selected mixtures of polymeric stabilizers and of at least one selected ionic comonomer.In the polymerization process the monomer is metered continuously or discontinuously into the said initial charge.In this way it is possible by means of simple process measures to prepare bimodal or multimodal dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.