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Application of derivatives of metals of 2 - mercaptobenzothiazoles, 2 - mercaptobenzoxazoles or 2 - mercaptobenzimidazoles for delaying the transmission of fumes by halides or polystyrenes, polyvinyl
Application of derivatives of metals of 2 - mercaptobenzothiazoles, 2 - mercaptobenzoxazoles or 2 - mercaptobenzimidazoles for delaying the transmission of fumes by halides or polystyrenes, polyvinyl
Metal-2-mercaptobenzothiazoles, metal-2-mercaptobenzoxazoles, and metal-2-mercaptobenzimidazoles are used as smoke retardants for polyvinyl halides and polystyrenes and have the general structure of ##STR1## WHERE R and R.sup.1 can be a hydrogen, alkyl, aryl, alkylaryl or halogen, X is either oxygen, sulfur or NR.sup.2, M is a metal, n is an integer equal to the valence of the metal and R.sup.2 can be a hydrogen, alkyl, aryl or alkylaryl group.
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机译：金属-2-巯基苯并噻唑，金属-2-巯基苯并恶唑和金属-2-巯基苯并咪唑用作聚乙烯基卤化物和聚苯乙烯的阻烟剂，它们的一般结构为## STR1 ## WHERE R和R.sup.1可以是氢，烷基，芳基，烷基芳基或卤素，X是氧，硫或NR 2，M是金属，n是等于金属的化合价的整数，R 2可以是氢，烷基，芳基或烷基芳基。
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