Smoke-suppressant polymer compositions are described comprising a resinous polymer of vinyl chloride and a sufficient amount of a smoke-suppressant amount of a heterocyclic compound of the formula ##STR1## where R' is hydrogen or C.sub.1 to C.sub.8 linear or branched alkyl carboxylate and where R" is hydrogen, C.sub.1 to C.sub.8 linear or branched alkoxy, C.sub.1 to C.sub.8 alkoxy substituted linear or branched C.sub.1 to C.sub.8 alkoxy, or furfuryloxy; ##STR2## WHERE X IS 1 OR 2; WHERE X IS 1, R'" is C.sub.1 to C.sub.8 linear or branched alkoxy alkyl or C.sub.1 to C.sub.10 alkoxy alkoxy alkyl; and where x is 2, R'" is C.sub.1 to C.sub.8 linear or branched alkylene, C.sub.1 to C.sub.10 linear or branched oxyalkylene, or C.sub.1 to C.sub.10 linear or branched polyoxyalkylene; or 3. mixtures thereof.
本文描述了一种烟雾抑制聚合物组合物,其中包括
氯乙烯树脂聚合物和足够量的
杂环化合物烟雾
抑制剂,其
化学式为##STR1##其中R'为氢或C.sub.1到C.sub.8线性或支链烷基
羧酸酯,R"为氢,C.sub.1到C.sub.8线性或支链烷氧基,C.sub.1到C.sub.8烷氧基取代的线性或支链C.sub.1到C.sub.8烷氧基,或者是
糠醛基;##STR2##其中X为1或2;当X为1时,R'"为C.sub.1到C.sub.8线性或支链烷氧基烷基或C.sub.1到C.sub.10烷氧基烷氧基烷基;当X为2时,R'"为C.sub.1到C.sub.8线性或支链烷基,C.sub.1到C.sub.10线性或支链氧代烷基,或C.sub.1到C.sub.10线性或支链聚氧代烷基;或者是3.以上混合物。