| 摘要 |
<p>1,197,115. Polyvinyl chloride composition. PRODUITS CHIMIQUES PECHINEYSAINT-GOBAIN. 28 Aug., 1968 [29 Aug., 1967], No. 41095/68. Heading C3P. Polyvinyl chloride contains, as lubricant and reinforcing agent, 1-10% by weight of a rubbery propylene oxide homopolymer having a viscosity limit index of more than 300 ml./g. (viscosity index measured at 100‹ C. in alphachloronaphthalene). The polymer may be after-chlorinated. In the examples, dibasic lead stearate is added as stabilizer.</p> |
