申请人:The Goodyear Tire & Rubber Company
公开号:US04254020A1
公开(公告)日:1981-03-03
Compounds of the formula: ##STR1## wherein R is selected from (1) alkyl radicals having 6 to 20 carbon atoms; (2) phenyl radicals which may be substituted by 1 or 2 alkyl groups having 1 to 8 carbon atoms; or (3) aralkyl radicals having 7 to 12 carbon atoms; and wherein R.sup.1 is selected from (1) alkylene radicals having 2 to 6 carbon atoms; (2) cycloalkylene radicals having 5 to 12 carbon atoms; (3) alkylcycloalkylene radicals of the formula --R.sub.3 --R.sub.2 (R.sub.4).sub.n, wherein R.sub.2 is a cycloalkylene radical having 5 to 12 carbon and R.sub.3 and R.sub.4 are alkylene radicals having 1 to 6 carbon atoms, and n equals 1 or 0; (4) or a group of the formula --R.sub.5 --YR.sub.6, wherein R.sub.5 and R.sub.6 are alkylene radicals having 2 to 6 carbon atoms and Y is oxygen, sulfur, or a 1,4-phenylene radical. These compounds have utility as synergistic stabilizers with phenolic type antioxidants in the stabilization of organic materials such as natural and synthetic polymers, rubbers, lubricants and oils, etc.
公式为:##STR1## 其中R选择自(1)具有6至20个碳原子的烷基基团;(2)苯基基团,可以被1或2个具有1至8个碳原子的烷基基团取代;或(3)具有7至12个碳原子的芳基烷基基团;且其中R.sup.1选择自(1)具有2至6个碳原子的烷基基团;(2)具有5至12个碳原子的环烷基基团;(3)具有公式--R.sub.3 --R.sub.2 (R.sub.4).sub.n的烷基环烷基基团,其中R.sub.2是具有5至12个碳原子的环烷基基团,R.sub.3和R.sub.4是具有1至6个碳原子的烷基基团,n等于1或0;(4)或具有公式--R.sub.5 --YR.sub.6的基团,其中R.sub.5和R.sub.6是具有2至6个碳原子的烷基基团,Y是氧、硫或1,4-苯基基团。这些化合物在有机材料的稳定化中与酚类抗氧化剂具有协同稳定剂的作用,例如天然和合成聚合物、橡胶、润滑剂和油等。