申请人:Ciba-Geigy Corporation
公开号:US04125516A1
公开(公告)日:1978-11-14
Alkylthioalkanoyloxyalkyl and alkylthioalkyl derivatives of N-heterocyclic moieties are stabilizers for organic materials subject to oxidative, thermal and/or light induced deterioration. They are prepared by classical transesterification, oxirane ring opening and addition of mercaptan to olefin reactions. Typical embodiments are tris[2-(3-n-dodecythiopropionyloxy)ethyl isocyanurate] and 3-(3-n-dodecylthio-2-hydroxypropyl)-5,5-dimethylhydantoin. These compounds are used in conjunction with phenolic antioxidants to stabilize organic materials, particularly polyolefins and hydrocarbon compositions, against the deleterious effects of heat and oxygen and against discoloration.
烷硫基烷酰氧基烷基和烷硫基烷基衍生物的N-杂环基团是有机材料的稳定剂,可以抵抗氧化、热降解和/或光诱导的恶化。它们通过经典的酯交换反应、环氧丙烷环开启和巯基添加到烯烃反应来制备。典型的实施例包括三[2-(3-正十二硫代丙酰氧基)乙基异氰酸酯]和3-(3-正十二硫代-2-羟基丙基)-5,5-二甲基咪唑烷酮。这些化合物与酚类抗氧化剂一起使用,以稳定有机材料,特别是聚烯烃和碳氢化合物,抵抗热氧化和氧化对其造成的有害影响,以及防止变色。