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    • 10. 发明授权
    • Hindered silicon ester stabilizers
    • 受阻硅酯稳定剂
    • US4636573A
    • 1987-01-13
    • US773962
    • 1985-09-09
    • Stephen D. PastorJohn D. Spivack
    • Stephen D. PastorJohn D. Spivack
    • C08G77/52C07F7/18C08G63/68C08G77/48C08G77/54C08K5/5415C08K5/5425C08K5/548C09K15/32C07F7/08
    • C08K5/5415C07F7/184C07F7/1868C09K15/326
    • 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 --; andn is an integer from 2 to 100.
    • 式I和II的化合物其中R 1,R 2,R 3,R 4和R 5独立地为氢,1至18个碳原子的烷基,5至8个碳原子的环烷基,苯基 由碳原子数1〜18的烷基取代的苯基,碳原子数7〜9的芳烷基或碳原子数为1〜12的烷基取代的芳烷基,R6和R7独立为碳原子数1〜30的烷基,碳原子数为5〜8的烷基 碳原子,苯基,被1至18个碳原子的烷基取代的苯基,7至9个碳原子的芳烷基或被1至12个碳原子的烷基取代的所述芳烷基; A是直接键,亚甲基或亚乙基,B是2至10个碳原子的烷二基,式-CH 2 CH 2 -S-CH 2 CH 2 - 或式III -CH 2 CH 2 - (O-CH 2 CH 2)m的基团 - (III),其中m是1至4的整数,B也表示被氧或硫原子间隔的亚苯基或亚联苯基,或由式-C(CH 3)2 - 基团所组成; n为2〜100的整数。