申请人:Huels Aktiengesellschaft
公开号:US04859790A1
公开(公告)日:1989-08-22
Esters of 3-tert-butyl- and 3-tert-butyl-5-alkyl-4-hydroxyphenyl(alkane) carboxylic acids of Formula I ##STR1## with oxethylates of polyhydroxyaromatics of 2-6 hydroxy groups of general Formulae II and III, containing 1-6 oxethylate units, ##STR2## with X=(CH.sub.2).sub.q OH X'=(CH.sub.2).sub.r OH wherein q, r, s can be 0 or 1, preferably 0, X"=(CH.sub.2).sub.s OH R,R', R"=H, alkyl, halogen, ##STR3## preferably 4-hydroxyphenyl, n=2 to 6 for z or z'=0, preferably 2 or 3, and n=1 to 5 for z or z'.noteq.0, preferably 2 or 3, o+p=n 0.ltoreq.a, z.ltoreq.a+z.ltoreq.6-n (in Formula II) 0.ltoreq.b, c, z'.ltoreq.4.ltoreq.8-n (in Formula III). are useful for the stabilization of polymers.
公式I中3-叔丁基和3-叔丁基-5-烷基-4-羟基苯基(烷基)羧酸的酯与公式II和III的2-6羟基团的聚羟基芳香族氧乙酸酯反应,含有1-6个氧乙酸酯基团,其中X =(CH2)qOH,X' =(CH2)rOH,其中q,r,s可以为0或1,优选为0,X" =(CH2)sOH,R,R',R" = H,烷基,卤素,优选为4-羟基苯基,n = 2至6,用于z或z'=0时,优选为2或3,用于z或z'≠0时,优选为2或3,o+p=n,0≤a,z≤a+z≤6-n(在公式II中),0≤b,c,z'≤4≤8-n(在公式III中),可用于稳定聚合物。