利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.02 秒)

    Process for the preparation and recovery of oxydiphthalic anhydrides
    4.
    发明授权
    Process for the preparation and recovery of oxydiphthalic anhydrides 失效
    氧联二邻苯二甲酸酐的制备和回收方法

    公开(公告)号：US5021168A

    公开(公告)日：1991-06-04

    申请号：US381345

    申请日：1989-07-18

    申请人： John R. Molinaro ,  Joseph A. Pawlak ,  Willis T. Schwartz

    发明人： John R. Molinaro ,  Joseph A. Pawlak ,  Willis T. Schwartz

    IPC分类号： C07C51/567

    CPC分类号： C07C51/567

    摘要： Oxydiphthalic anhydrides of the formula ##STR1## are prepared by reacting a halophthalic anhydride with potassium carbonate in:(1) a solvent-free reaction medium wherein the molar ratio of halophthalic anhydride:potassium carbonate is greater than 2:1; or(2) a high boiling solvent which improves the mixing of the components, and aids in subsequent purification of the product. The molar ratio of halophthalic anhydride to potassium carbonate is about 1.5:1 or greater.The oxydiphthalic anhydride can be purified by filtering or centrifuging a hot solution of the oxydiphthalic anhydride in a high boiling solvent to remove impurities, followed by cooling the solution to precipitate the oxydiphthalic anhydride, which can be removed from the solution by filtration or centrifuging.

    摘要翻译： 通过使卤代邻苯二甲酸酐与碳酸钾反应制备下式的氧邻二氢邻苯二甲酸酐：（1）卤代邻苯二甲酸酐：碳酸钾的摩尔比大于2:1的无溶剂反应介质; 或（2）高沸点溶剂，其改善了组分的混合，有助于随后的产物纯化。 卤代邻苯二甲酸酐与碳酸钾的摩尔比为约1.5:1或更高。 氧联二邻苯二甲酸酐可以通过在高沸点溶剂中过滤或离心氧联二邻苯二甲酸酐的热溶液以除去杂质，然后冷却溶液以沉淀氧联二邻苯二甲酸酐，从而可以通过过滤或离心从溶液中除去。

    Antidegradant esters
    5.
    发明授权
    Antidegradant esters 失效
    抗降解酯

    公开(公告)号：US4009198A

    公开(公告)日：1977-02-22

    申请号：US537521

    申请日：1974-12-30

    申请人： Joseph A. Pawlak ,  Francis J. Bajer

    发明人： Joseph A. Pawlak ,  Francis J. Bajer

    IPC分类号： C08K5/18 ,  C07C93/26

    CPC分类号： C08K5/18

    摘要： Compounds of the formula ##STR1## wherein, X is from 1 to 12; Z is a member selected from the group consisting of --H, --NH.sub.4, alkali metal, lower alkyl and lower hydroxyalkyl; R is a member selected from the group consisting of ethylene, 1,2-propylene, 1,2-butylene, 2,3-butylene, styrylene and mixtures thereof; R' is selected from the group consisting of substituted or unsubstituted alkylene, alkenylene, cycloalkenylene, arylene and cycloalkylene moieties containing at least two nuclear carbon atoms and in which any substituent is selected from the group consisting of carboxy, halo and lower alkyl substituents; M is a member selected from the group consisting of hydrocarbon of 1-20 carbon atoms, --RO).sub.x H, and ##STR2## wherein R, X, R' and Z are as above defined; and P is an integer from 0-1, providing when p is 0, ##STR3## is hydrogen, are non-staining or slightly staining antioxidants possessing antiozonant properties for use as antidegradants in combination with oxidizable organic substrates.

    摘要翻译： 下式的化合物其中X为1至12; Z是选自-H，-NH4，碱金属，低级烷基和低级羟烷基的成员; R是选自乙烯，1,2-亚丙基，1,2-亚丁基，2,3-丁烯基，亚乙烯基及其混合物的成员; R'选自含有至少两个核碳原子的取代或未取代的亚烷基，亚烯基，亚环烯基，亚芳基和亚环烷基，其中任何取代基选自羧基，卤代和低级烷基取代基; M是选自1-20个碳原子的烃，-RO）xH和其中R，X，R'和Z如上定义的那些; 并且P为0-1的整数，当p为0时，为氢，是具有抗臭氧特性的无染色或微染色抗氧化剂，用作抗氧化可降解剂与可氧化有机底物结合使用。

    4,4-dihalohexahydrophthalic anhydrides and 4-fluorotetrahydrophthalic anhydride, and process for their preparation
    7.
    发明授权
    4,4-dihalohexahydrophthalic anhydrides and 4-fluorotetrahydrophthalic anhydride, and process for their preparation 失效
    4,4-二卤代六氢邻苯二甲酸酐和4-氟四氢邻苯二甲酸酐，及其制备方法

    公开(公告)号：US4709056A

    公开(公告)日：1987-11-24

    申请号：US604271

    申请日：1984-05-02

    申请人： Byron R. Cotter ,  Henry C. Lin ,  Joseph A. Pawlak

    发明人： Byron R. Cotter ,  Henry C. Lin ,  Joseph A. Pawlak

    IPC分类号： C07C61/15 ,  C07C61/40 ,  C07C61/09 ,  C07D307/89

    CPC分类号： C07C61/40 ,  C07C61/15

    摘要： 4,4-dihalohexahydrophthalic anhydrides of the formula ##STR1## where Y is chlorine or fluorine, are prepared by the reaction of hydrogen fluoride with 4-chlorotetrahydrophthalic anhydride.The 4,4-dihalohexahydrophthalic anhydrides of this invention can be dehydrohalogenated by reaction with basic alumina to prepare a mixture of 4-fluorotetrahydrophthalic anhydride isomers of the formula ##STR2## The 4-fluorotetrahydrophthalic anhydrides can then be dehydrogenated by reaction with a dehydrogenation catalyst to prepare 4-fluorophthalic anhydride.

    摘要翻译： 通过氟化氢与4-氯四氢邻苯二甲酸酐的反应制备式“IMAGE”的其中Y是氯或氟的4,4-二卤代六氢邻苯二甲酸酐。 本发明的4,4-二卤代六氢邻苯二甲酸酐可以通过与碱性氧化铝反应脱卤化氢来制备下式的4-氟四氢邻苯二甲酸酐异构体的混合物。然后可以通过与脱氢催化剂反应将4-氟四氢邻苯二甲酸酐脱氢， 制备4-氟邻苯二甲酸酐。

    Antidegradant esters
    8.
    发明授权
    Antidegradant esters 失效
    抗降解酯

    公开(公告)号：US4021474A

    公开(公告)日：1977-05-03

    申请号：US537472

    申请日：1974-12-30

    申请人： Joseph A. Pawlak ,  Francis J. Bajer

    发明人： Joseph A. Pawlak ,  Francis J. Bajer

    IPC分类号： C09K15/20 ,  C07C93/26

    CPC分类号： C09K15/20

    摘要： Compounds of the formula ##STR1## wherein, X is from 1 to 12; Z is a member selected from the group consisting of --H, --NH.sub.4, alkali metal, lower alkyl and lower hydroxyalkyl; R is a member selected from the group consisting of ethylene, 1,2-propylene, 1,2-butylene, 2,3-butylene, styrlene and mixtures thereof; R' is selected from the group consisting of substituted or unsubstituted alkylene, alkenylene, cycloalkenylene and cycloalkylene moieties containing at least two nuclear carbon atoms and in which any substituent is selected from the group consisting of carboxy, halo and lower alkyl substituents; M is a member selected from the group consisting of hydrocarbon of 1-20 carbon atoms --RO--H, and ##STR2## wherein R, X, R' and Z are as above defined; and p is an integer from 0-1, providing when p is 0, ##STR3## IS HYDROGEN, ARE NON-STAINING OR SLIGHTLY STAINING ANTIOXIDANTS POSSESSING ANTIOZONANT PROPERTIES FOR USE AS ANTIDEGRADANTS IN COMBINATION WITH OXIDIZABLE ORGANIC SUBSTRATES.

    摘要翻译： 下式的化合物其中X为1至12; Z是选自-H，-NH4，碱金属，低级烷基和低级羟烷基的成员; R是选自乙烯，1,2-丙烯，1,2-亚丁基，2,3-丁烯，苯乙烯及其混合物的成员; R'选自取代或未取代的亚烷基，亚烯基，亚环烯基和含有至少两个核碳原子的亚环烷基，其中任何取代基选自羧基，卤代和低级烷基取代基; M是选自1-20个碳原子的烃-RO-H的烃，和其中R，X，R'和Z如上所定义的 并且p是0-1的整数，当p为0时，图像为氢，非污染或略微染色抗氧化剂，可用于与可氧化有机基质结合使用的抗病毒剂。

    Process for the preparation and recovery of oxdiphthalic anhydrides
    9.
    发明授权
    Process for the preparation and recovery of oxdiphthalic anhydrides 失效
    氧二邻苯二甲酸酐的制备和回收方法

    公开(公告)号：US4870194A

    公开(公告)日：1989-09-26

    申请号：US160036

    申请日：1988-02-24

    申请人： John R. Molinaro ,  Joseph A. Pawlak ,  Willis T. Schwartz

    发明人： John R. Molinaro ,  Joseph A. Pawlak ,  Willis T. Schwartz

    IPC分类号： C07D307/89 ,  C07B61/00 ,  C07C51/567

    CPC分类号： C07C51/567

    摘要： Oxydiphthalic anhydrides of the formula ##STR1## are prepared by reacting a halophthalic anhydride with potassium carbonate in:(1) a solvent-free reaction medium wherein the molar ratio of halophthalic anhydride:potassium carbonate is greater than 2:1; or(2) a high boiling solvent which improves the mixing of the components, and aids in subsequent purification of the product. The molar ratio of halophthalic anhydride to potassium carbonate is about 1.5:1 or greater.The oxydiphthalic anhydride can be purified by filtering or centrifuging a hot solution of the oxydiphthalic anhydride in a high boiling solvent to remove impurities, followed by cooling the solution to precipitate the oxydiphthalic anhydride, which can be removed from the solution by filtration or centrifuging.

    摘要翻译： 通过使卤代邻苯二甲酸酐与碳酸钾反应制备：式（1）的无水反应介质，其中卤代邻苯二甲酸酐：碳酸钾的摩尔比大于2:1; 或（2）高沸点溶剂，其改善了组分的混合，有助于随后的产物纯化。 卤代邻苯二甲酸酐与碳酸钾的摩尔比为约1.5:1或更高。 氧联二邻苯二甲酸酐可以通过在高沸点溶剂中过滤或离心氧联二邻苯二甲酸酐的热溶液以除去杂质，然后冷却溶液以沉淀氧联二邻苯二甲酸酐，从而可以通过过滤或离心从溶液中除去。