摘要 |
<p>1,222,316. PVC compositions. ISRAEL MINING INDUSTRIES-INSTITUTE FOR RESEARCH & DEVELOPMENT, and ISRAEL PETROCHEMICAL ENTERPRISES Ltd. 23 April, 1969 [5 May, 1968], No. 20858/69. Addition to 1,099,249. Heading C3P. PVC compositions contain 2-20% by wt. of heterogeneously chlorinated high-pressure polyethylene produced by the process of Specification 1,099,249. In the examples a Ba-Cd stabilizer and a chelating agent are also added.</p> |