| 摘要 |
<p>1277289 Emulsion polymerization of vinyl chloride FARBWERKE HOECHST AG 27 Aug 1969 [27 Aug 1968] 42725/69 Heading C3P Vinyl chloride is polymerized in aqueous emulsion using as emulsifying agent a lithium, potassium, ammonium or zinc salt of a C 8 -C 20 alkyl sulphonic acid or an alkaryl sulphonic acid having a C 8 -C 18 alkyl group, and the polymer is recovered, the emulsifier remaining with the polymer, e.g. by spray drying. In one example a copolymer with butyl acrylate is formed.</p> |
