发明授权
US4699939A Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidants 失效
邻苯环,对羟基芳烷酸酯和酰胺类抗氧化剂

Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide
antioxidants
摘要:
Compounds of formula I ##STR1## wherein R.sub.1, R.sub.2 and A are essentially hydrocarbyl or substituted hydrocarbyl groups with at least one of R.sub.1 and R.sub.2 being cyclohexyl, n is 0, 1 or 2, m is an integer of 1 to 4 and X is oxygen or --N(R.sub.3)-- wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl.
公开/授权文献
信息查询
0/0