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    • 5. 发明授权
    • Dimeric light stabilizers for polyolefines and polyolefine copolymers
    • 聚烯烃和聚烯烃共聚物的二聚光稳定剂
    • US06495622B1
    • 2002-12-17
    • US09722975
    • 2000-11-27
    • David George LeppardVien Van ToanRoland A. E. WinterMichela Bonora
    • David George LeppardVien Van ToanRoland A. E. WinterMichela Bonora
    • C07F708
    • C07C45/71C07C49/84C08K5/132C08L23/16C08L2205/02C08L23/00C08L2666/06C08L23/02
    • Compositions comprising A) a polyolefin or polyolefin copolymer, and B) a compound of the formula I wherein R1 is O or O—X—O; R2, R3, R4 and R5 independently are hydrogen, halogen, C1-C8alkyl, C1-C8alkoxy, SR10, SO2R10, phenyl, CF3, COOR11; and wherein R2 and R3 also may be OH; R6 and R7 are H or C1-C8alkyl; R8 and R9 are H, C1-C8alkyl or allyl; R10 is phenyl or C1-C12alkyl; R11 is C1-C8alkyl; C3-C50alkylene interrupted by one or more O; cyclohexyl; benzyl; allyl; X is C2-C18alkylene; C3-C12hydroxyalkylene; or a group selected from those of the formulae where D and D′ independently are a direct bond or C1-C3alkylene; and Y is O, S, SO2, or C1-C3alkylene, e.g. polyethylene films, are well stabilized against the effects of light, oxygen and heat. Some novel compounds of component B are valuable stabilizers for organic material against damage by light, oxygen and/or heat.
    • 包含A)聚烯烃或聚烯烃共聚物的组合物,和B)其中R1为O或OXO的式I化合物; R2,R3,R4和R5独立地为氢,卤素,C1-C8烷基,C1-C8烷氧基,SR10,SO2R10,苯基,CF3 ,COOR11; 并且其中R2和R3也可以是OH; R6和R7是H或C1-C8烷基; R8和R9是H,C1-C8烷基或烯丙基; R10是苯基或C1-C12烷基; R11是C1-C8烷基; C3-C50亚烷基被一个或多个O中断; 环己基 苄基; 烯丙基; X是C 2 -C 18亚烷基; C3-C12羟基亚烷基; 或选自式D和D'的基团的基团独立地为直接键或C 1 -C 3亚烷基; 并且Y是O,S,SO 2或C 1 -C 3亚烷基。 聚乙烯薄膜对光,氧和热的影响是很好的稳定的。 组分B的一些新型化合物是有机材料对光,氧和/或热的损害的有价值的稳定剂。