Process for preventing build-up in polymerization reactors
AssigneeSolvay & Cie
InventorStephane Noel
Life of this patent
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Abstract
Process for preventing build-up in the reactors used in the free radical polymerization of ethylenically unsaturated monomers, and more particularly of vinyl chloride, in which the reactor walls are subjected to heat treatment before the reactors are charged in preparation for the polymerization process.
Claims15
Process for preventing build-up in a reactor during the free radical polymerisation of ethylenically unsaturated monomers, comprising subjecting the walls of the reactor, which reactor is empty of any liquid or solid phase, to heat treatment at a temperature above 60.degree. C for more than one minute before the reactor is charged for purposes of polymerisation.
Dependencies are inferred from the claim text.