申请人:Sankyo Company, Limited
公开号:US04141883A1
公开(公告)日:1979-02-27
Polymers, both natural and synthetic, are stabilized against the deterioration resulting from heat and/or light by the incorporation of certain 2,2,6,6-tetra-substituted-4-piperidinol derivatives which additionally have an alkyl, alkenyl, alkynyl or aralkyl substituent at one or both of the 3- and 5- positions.
聚合物,无论是天然的还是合成的,通过引入特定的2,2,6,6-四取代-4-哌啶醇衍生物来稳定,以防止由热和/或光引起的降解,这些衍生物在3位和/或5位还含有一个烷基、烯基、炔基或芳烷基的取代基。