申请人:Ciba Specialty Chemicals Corporation
公开号:US06495622B1
公开(公告)日:2002-12-17
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,和B) 公式I的化合物的组合物,其中R1为O或O-X-O;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;其中R2和R3也可以是OH;R6和R7为H或C1-C8烷基;R8和R9为H、C1-C8烷基或烯丙基;R10为苯基或C1-C12烷基;R11为C1-C8烷基;C3-C50烷基被一个或多个O中断;环己基;苄基;烯丙基;X为C2-C18烷基;C3-C12羟基烷基;或从公式中选择的一组,其中D和D'独立地为直接键或C1-C3烷基;Y为O、S、SO2或C1-C3烷基。例如,聚乙烯薄膜被很好地稳定,不受光、氧和热的影响。B组分的一些新化合物是有价值的稳定剂,用于防止有机材料受光、氧和/或热损伤。