申请人:——
公开号:US04636573A1
公开(公告)日:1987-01-13
Compounds of the formulae I and II ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms, R.sup.6 and R.sup.7 are independently alkyl having 1 to 30 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms; A is a direct bond, a methylene or an ethylene radical, B is an alkanediyl radical of 2 to 10 carbon atoms, the radical of formula --CH.sub.2 CH.sub.2 --S--CH.sub.2 CH.sub.2 -- or of the formula III --CH.sub.2 CH.sub.2 --(O--CH.sub.2 CH.sub.2).sub.m -- (III), wherein m is an integer from 1 to 4, B also denotes a phenylene radical or a biphenylene radical interrupted by an oxygen or a sulfur atom or by the group of formula --C(CH.sub.3).sub.2 --; and n is an integer from 2 to 100.
化合物I和II的化学式为##STR1## 其中R.sup.1,R.sup.2,R.sup.3,R.sup.4和R.sup.5独立地表示氢,1至18个碳原子的烷基,5至8个碳原子的环烷基,苯基,被1至18个碳原子的烷基取代的苯基,7至9个碳原子的芳基烷基或被1至12个碳原子的烷基取代的该芳基烷基,R.sup.6和R.sup.7独立地表示具有1至30个碳原子的烷基,5至8个碳原子的环烷基,苯基,被1至18个碳原子的烷基取代的苯基,7至9个碳原子的芳基烷基或被1至12个碳原子的烷基取代的该芳基烷基; A表示直接键,亚甲基或乙烯基,B表示2至10个碳原子的脂肪二烯基,式III的基团--CH.sub.2 CH.sub.2 --S--CH.sub.2 CH.sub.2 --或式(III)的基团--CH.sub.2 CH.sub.2 --(O--CH.sub.2 CH.sub.2).sub.m--,其中m为1至4的整数,B还表示被氧或硫原子或式--C(CH.sub.3).sub.2 --所中断的苯基或双苯基基团; n为2至100的整数。