| 摘要 |
1364115 Halogen-containing resin compositions CINCINNATI MILACRON CHEMICALS Inc 21 Oct 1971 [11 Dec 1970] 49093/71 Heading C3P A halogen-containing resin, e.g. PVC, contains a premixed admixture of a lubricant for the resin and a highly absorptive synthetic silicate powder. The preferred silicate comprises 40-70% SiO 2 , 1-30% CaO, 1-5% Al 2 O 3 , 1-2% Fe 2 O 3 , 0À1-20% MgO, 1-2% (Na 2 O+ K 2 O) and 10-20% volatile matter. Lubricants mentioned are fatty acids and alcohols, esters of polyols or polycarboxylic acids and paraffin, ester or amide waxes. In the examples titanium dioxide and a tin stabilizer are also added. |
