Method for polymerising ethylenically unsaturated monomers
US9975978B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Feb 11, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Feb 11, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0204
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method for polymerizing ethylenically unsaturated monomers by free-radical initiated emulsion polymerization in an aqueous medium in a polymerization reactor, wherein the inside walls and optionally also the fittings in the reactor are coated by applying a deposit-inhibiting product before the reactor is filled, characterized in that the surfaces that are to be coated with deposit-inhibiting product are treated with an acid solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.