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    Dimeric light stabilizers for polyolefines and polyolefine copolymers
    1.
    发明授权
    Dimeric light stabilizers for polyolefines and polyolefine copolymers 失效
    聚烯烃和聚烯烃共聚物的二聚光稳定剂

    公开(公告)号：US06495622B1

    公开(公告)日：2002-12-17

    申请号：US09722975

    申请日：2000-11-27

    申请人： David George Leppard ,  Vien Van Toan ,  Roland A. E. Winter ,  Michela Bonora

    发明人： David George Leppard ,  Vien Van Toan ,  Roland A. E. Winter ,  Michela Bonora

    IPC分类号： C07F708

    CPC分类号： C07C45/71 ,  C07C49/84 ,  C08K5/132 ,  C08L23/16 ,  C08L2205/02 ,  C08L23/00 ,  C08L2666/06 ,  C08L23/02

    摘要： 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.

    摘要翻译： 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。

    .alpha.-Olefin copolymers containing pendant hindered amine groups
    9.
    发明授权
    .alpha.-Olefin copolymers containing pendant hindered amine groups 失效
    含有受阻胺基团的α-烯烃共聚物

    公开(公告)号：US4413096A

    公开(公告)日：1983-11-01

    申请号：US342876

    申请日：1982-01-26

    申请人： Frank T. Fu ,  Roland A. E. Winter

    发明人： Frank T. Fu ,  Roland A. E. Winter

    IPC分类号： C08L23/02 ,  C08L23/08 ,  C08L23/12 ,  C08L75/04 ,  C08L39/04 ,  C08L77/00

    CPC分类号： C08L23/0815 ,  C08L23/12 ,  C08L23/0869

    摘要： .alpha.-Olefin copolymers having recurring structural units of the formula ##STR1## where preferably T is hydrogen, L.sub.1 is hydrogen, L.sub.2 is COOL.sub.3, L.sub.3 is lower alkyl, E is --COO--, G is a hindered amine moiety, a/a+b+c=0.50 to 0.99, b/a+b+c=0 to 0.49 and c/a+b+c=0.01 to 0.50, are useful as light stabilizers for polymeric substrates, particularly polyolefins.

    摘要翻译： 具有下式的重复结构单元的α-烯烃共聚物，其中优选T为氢，L 1为氢，L 2为COOL 3，L 3为低级烷基，E为-COO-，G为受阻胺部分，a / a + b + c = 0.50〜0.99，b / a + b + c = 0〜0.49，c / a + b + c = 0.01〜0.50，可用作聚合物基材，特别是聚烯烃的光稳定剂。

    High caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenes
    10.
    发明授权
    High caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenes 失效
    用于制备取代的2-硝基-2'-羟基偶氮苯的高苛性偶联方法

    公开(公告)号：US4347180A

    公开(公告)日：1982-08-31

    申请号：US222808

    申请日：1981-01-05

    申请人： Roland A. E. Winter ,  Martin Dexter

    发明人： Roland A. E. Winter ,  Martin Dexter

    IPC分类号： C07C37/14 ,  C07D249/20 ,  C08K5/3475 ,  C09B29/15 ,  C09D7/12 ,  C07C107/06 ,  C09B29/12

    CPC分类号： C07C37/14 ,  C07D249/20 ,  C08K5/3475 ,  C09B29/10 ,  C09D7/1241 ,  C08K5/23

    摘要： Substituted 2-nitro-2'-hydroxyazobenzenes are prepared by adding an aqueous mineral acid solution of a diazotized o-nitroaniline to a strongly alkaline lower alkanol or aqueous lower alkanol solution of a substituted phenol, containing sufficient alkali metal hydroxide to assure a pH value substantially over 11 and an excess of hydroxyl ion in the reaction mixture even after all the acidic diazonium salt solution is added, wherein the reaction solvent mixture is at least 50% by weight of lower alkanol, at a reaction temperature between -15.degree. C. and +30.degree. C.The o-nitroazobenzenes obtained are intermediate products useful in the manufacture of benzotriazole UV absorbers.

    摘要翻译： 通过将重氮化的邻硝基苯胺的无机酸水溶液加入到含有足够的碱金属氢氧化物的取代苯酚的强碱性低级链烷醇或低级链烷醇溶液中以确保pH值来制备取代的2-硝基-2'-羟基偶氮 即使在所有酸性重氮盐溶液加入之后，反应混合物中的羟基离子基本上超过11，过量的羟基离子，其中反应溶剂混合物为低级链烷醇的至少50重量％，反应温度为-15℃。 和+ 30℃。所得的邻硝基偶氮苯是可用于制备苯并三唑UV吸收剂的中间产物。