| 摘要 |
<p>1,212,083. Vinyl chloride graft polymer compositions. MONTECATINI EDISON S.p.A. 16 Jan., 1963 [17 Jan., 1967], No. 2412/68. Heading C3G. A composition contains (a) at least one polymer and/or copolymer of vinyl chloride having a viscosity of from 0À20 to 0.35 as measured in cyclohexanone at a concentration of 0.40% w/v at 25‹ C.; (b) at least one afterchlorinated polymer and/or copolymer of vinyl chloride; and (c) at least one polymer which has been obtained by grafting vinyl chloride on to a halogenated polyolefin, the components (b) and (c) being respectively present in quantities of from 5 to 500, and from 0.5 to 250 parts by weight per 100 parts of component (a). In the example, the composition comprises (a) polyvinyl chloride, (b) part chlorinated polyvinyl chloride, and (c) chlorinated polyethylene grafted with vinyl chloride.</p> |
