| abstract |
Process for the preparation of polyvinyl chloride by meansnSusper.sionspolymerisatipn using radical-formingnInitiators in the presence of suspension stabilizers ornDispersants, with the same porosity and the same bulk weightnan improved plasticizer susceptibility and processabilitynand has a narrower Korxtgrößenverteilung, in the knownnwater-soluble cellulose ethers, optionally with alsonknown oil-soluble surfactants, e.g. SorbitanodernGlycerol fatty acid esters are combined, unsaponified ornmaximum up to 25 mol% saponified polyvinyl acetates, preferablynPolyvinyl acetates having an acetate content of 100 mol% and anMolar weight Mw from 40000'to 280000 in. A concentration of 0.01nto 3 wt .-%, based on VC, are added, wherein the usenthe Polyvinylacetatlösurigen prepared by the usual methodsnor dispersions preferably without prior workup. |