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    Azodicarboxylic acid derivatives containing hindered amine moieties as polymer stabilizers
    4.
    发明授权
    Azodicarboxylic acid derivatives containing hindered amine moieties as polymer stabilizers 失效
    含有受阻胺部分作为聚合物稳定剂的偶氮二羧酸衍生物

    公开(公告)号：US5578731A

    公开(公告)日：1996-11-26

    申请号：US463449

    申请日：1995-06-05

    申请人： Ramanathan Ravichandran ,  Ambelal R. Patel

    发明人： Ramanathan Ravichandran ,  Ambelal R. Patel

    IPC分类号： C07D211/46 ,  C07D211/58 ,  C07D211/94 ,  C08K5/3432 ,  C08K5/3435 ,  C07D211/30 ,  C07D211/56

    CPC分类号： C07D211/94 ,  C07D211/46 ,  C08K5/3435

    摘要： An asymmetrical hydrazine derivative of formula V ##STR1## where R.sub.1 is alkoxy of 1 to 18 carbon atoms or cycloalkyl of 5 to 12 carbon atoms;X is --O-- or --NR.sub.2 -- where R.sub.2 is hydrogen, alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, alkyl of 2 to 4 carbon atoms substituted by one alkoxy group of 1 to 12 carbon atoms or a group of formula II ##STR2## in which R.sub.1 is as defined above; and E is a alkyl of 1 to 20 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aryl of 6 to 14 carbon atoms or phenylalkyl of 7 to 22 carbon atoms, orE is --CONHR.sub.4, --CSNHR.sub.5, --COR.sub.6 COR.sub.7, --COR.sub.8 CONHR.sub.9, --COR.sub.10, --COOR.sub.11 or --SO.sub.2 R.sub.12,in which R.sub.4, R.sub.5, R.sub.7, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 are each independently of the other hydrogen, alkyl of 1 to 20 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aryl of 6 to 14 carbon atoms or phenylalkyl of 7 to 22 carbon atoms; andR.sub.6 and R.sub.8 are each independently of the other an alkylene of 1 to 12 carbons.

    摘要翻译： 其中R 1为1至18个碳原子的烷氧基或5至12个碳原子的环烷基的式V的不对称肼衍生物; X是-O-或-NR 2 - ，其中R 2是氢，1至18个碳原子的烷基，5至12个碳原子的环烷基，7至15个碳原子的苯基烷基，2至4个碳原子被1个烷氧基取代的烷基 1至12个碳原子的基团或其中R 1如上所定义的式II的基团; E为1〜20个碳原子的烷基，5〜12个碳原子的环烷基，6〜14个碳原子的芳基或7-22个碳原子的苯基烷基，或E为-CONHR4，-CSNHR5，-COR6COR7，-COR8CONHR9 ，-COR 10，-COOR 11或-SO 2 R 12，其中R 4，R 5，R 7，R 9，R 10，R 11和R 12各自独立地为氢，1-20个碳原子的烷基，5至12个碳原子的环烷基， 6至14个碳原子的苯基烷基或7至22个碳原子的苯基烷基; 并且R 6和R 8各自独立地为1至12个碳的亚烷基。

    Azodicarboxylic acid derivatives containing hindered amine moieties as polymer stabilizers
    6.
    发明授权
    Azodicarboxylic acid derivatives containing hindered amine moieties as polymer stabilizers 失效
    含有受阻胺部分作为聚合物稳定剂的偶氮二羧酸衍生物

    公开(公告)号：US5470980A

    公开(公告)日：1995-11-28

    申请号：US316272

    申请日：1994-09-30

    申请人： Ramanathan Ravichandran ,  Ambelal R. Patel

    发明人： Ramanathan Ravichandran ,  Ambelal R. Patel

    IPC分类号： C07D211/46 ,  C07D211/58 ,  C07D211/94 ,  C08K5/3432 ,  C08K5/3435 ,  C07D211/36

    CPC分类号： C07D211/94 ,  C07D211/46 ,  C08K5/3435

    摘要： The instant invention relates to novel hydrazine derivatives of formula III ##STR1## where R.sub.1 is hydrogen, oxyl, hydroxyl, alkyl, of 2 to 4 carbon atoms substituted by one hydroxyl group, allyl, benzyl, benzyl substituted by one of two alkyl of 1 to 4 carbon atoms or alkanoyl of 1 to 8 carbon atoms, and X is --O-- or --NR.sub.2 -- where R.sub.2 is hydrogen or alkyl. These compounds are useful as intermediates from which to prepare the corresponding azo compounds, which are useful for the stabilization of polymers, particularly unsaturated elastomers, by being grafted thereon.

    摘要翻译： 本发明涉及式III的新型肼衍生物III，其中R1是被一个羟基取代的2至4个碳原子的氢，氧基，羟基，烷基，烯丙基，苄基，被两个 1至4个碳原子或1至8个碳原子的烷酰基，X是-O-或-NR 2 - ，其中R 2是氢或烷基。 这些化合物可用作制备相应偶氮化合物的中间体，其可用于通过接枝在其上稳定聚合物，特别是不饱和弹性体。

    Long chain N,N,-dialkylhydroxylamines and stabilized compositions
    8.
    发明授权
    Long chain N,N,-dialkylhydroxylamines and stabilized compositions 失效
    长链N，N，二烷基羟胺和稳定组合物

    公开(公告)号：US4782105A

    公开(公告)日：1988-11-01

    申请号：US036939

    申请日：1987-04-10

    申请人： Ramanathan Ravichandran ,  Ambelal R. Patel ,  Frank P. Cortolano ,  Richard W. Thomas

    发明人： Ramanathan Ravichandran ,  Ambelal R. Patel ,  Frank P. Cortolano ,  Richard W. Thomas

    IPC分类号： C07C67/00 ,  C07C239/00 ,  C07C239/08 ,  C08K5/16 ,  C08K5/17 ,  C08K5/32 ,  C08L9/00 ,  C08L25/04 ,  C08L51/04 ,  C08L81/00 ,  C08L81/02 ,  C09K15/20

    CPC分类号： C08K5/32 ,  Y02P20/582

    摘要： Long chain N,N-dialkylhydroxylamines represent particularly valuable stabilizers for a number of polymer substrates. Their particular value is seen in their high temperature processing stabilization of poly(arylene sulfide), such as poly(phenylene sulfide), PPS, and of selected unsaturated elastomers used to modify thermoplastics. PPS is processed at elevated temperatures (300.degree. to 425.degree. C.) at which temperatures it crosslinks readily. Process stabilizers can extend the time to crosslinking and hence the processibility of the PPS. Long chain N,N-dialkylhydroxylamines are very effective process stabilizers for PPS being far superior to phenolic antioxidants, phosphites or amines. The hydroxylamine derived from di(hydrogenated tallow)amine is particularly useful for this purpose.

    摘要翻译： 长链N，N-二烷基羟胺代表了许多聚合物底物特别有价值的稳定剂。 在聚（亚芳基硫醚）如聚苯硫醚PPS和用于改性热塑性塑料的选定的不饱和弹性体的高温加工稳定化中，可以看到它们的特殊价值。 PPS在高温（300〜425℃）下进行处理，在此温度下，其交联容易。 工艺稳定剂可以延长交联时间，从而延长PPS的加工性。 长链N，N-二烷基羟胺是PPS非常有效的工艺稳定剂，远优于酚类抗氧化剂，亚磷酸酯或胺。 衍生自二（氢化牛脂）胺的羟胺特别适用于此目的。

    Polyolefin compositions stabilized against degradation using hydroxylamine derivatives
    9.
    发明授权
    Polyolefin compositions stabilized against degradation using hydroxylamine derivatives 失效
    使用羟胺衍生物稳定防止降解的聚烯烃组合物

    公开(公告)号：US4668721A

    公开(公告)日：1987-05-26

    申请号：US825722

    申请日：1986-02-03

    申请人： Raymond Seltzer ,  Ambelal R. Patel ,  Peter W. Stewart ,  Charlene White

    发明人： Raymond Seltzer ,  Ambelal R. Patel ,  Peter W. Stewart ,  Charlene White

    IPC分类号： C08K5/32 ,  C08K5/3435 ,  C08K5/3462 ,  C08K5/34

    CPC分类号： C08K5/3435 ,  C08K5/32 ,  C08K5/3462

    摘要： N,N-Dibenzylhydroxylamine and other selected hydroxylamine derivatives are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.

    摘要翻译： N，N-二苄基羟胺和其它选择的羟胺衍生物在稳定聚烯烃组合物中是有效的，所述聚烯烃组合物含有稳定剂或稳定剂混合物，其选自酚类抗氧化剂，受阻胺光稳定剂，紫外光吸收剂，有机磷化合物， 脂肪酸和硫代增效剂的碱金属盐，耐高温挤压降解，暴露于天然气燃烧产物，γ辐射或长时间储存​​。