| 摘要 |
PURPOSE:To provide the titled compsn. in which the emission of smoke during combustion is reduced without detriment to flame retardance, physical properties and processability inherent to the vinyl chloride resin, by blending specified quantities of antimony trioxide and a zinc compd. CONSTITUTION:1-30pts.wt. antimony trioxide such as Thermoguards S (a product of M & T Chemicals), 2-20pts.wt. at least one member (a finer particle size being preferred) selected from among zinc oxide, zinc sulfide, zinc carbonate and zinc silicate and 15-100pts.wt. plasticizer such as a trimellitate are blended with 100pts.wt. polyvinyl chloride resin. |
