Method for polymerising ethylenically unsaturated monomers
AssigneeWacker Chemie AG
InventorMuhammad Babar
Life of this patent
Estimating the term…
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.
Claims9
A method for polymerizing ethylenically unsaturated monomers, comprising radically initiated emulsion polymerization of the ethylenically unsaturated monomers in aqueous medium in a polymerization reactor, wherein the internal walls, and optionally internals, of said reactor are coated before the reactor is filled by application of a scale inhibitor which precipitates on the treatment with an acid solution, wherein the surfaces to be coated with the scale inhibitor are treated with an acid solution, wherein first the acid solution is applied to the areas that are to be coated, and subsequently the scale inhibitor, or wherein first the scale inhibitor is applied and subsequently the acid solution.
Dependencies are inferred from the claim text.