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    • 3. 发明授权
    • Process for the preparation and recovery of oxydiphthalic anhydrides
    • 氧联二邻苯二甲酸酐的制备和回收方法
    • US5021168A
    • 1991-06-04
    • US381345
    • 1989-07-18
    • John R. MolinaroJoseph A. PawlakWillis T. Schwartz
    • John R. MolinaroJoseph A. PawlakWillis T. Schwartz
    • C07C51/567
    • C07C51/567
    • 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.
    • 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。
    • 5. 发明授权
    • Antidegradant esters
    • 抗降解酯
    • US4009198A
    • 1977-02-22
    • US537521
    • 1974-12-30
    • Joseph A. PawlakFrancis J. Bajer
    • Joseph A. PawlakFrancis J. Bajer
    • C08K5/18C07C93/26
    • C08K5/18
    • 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.
    • 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。
    • 8. 发明授权
    • Antidegradant esters
    • 抗降解酯
    • US4021474A
    • 1977-05-03
    • US537472
    • 1974-12-30
    • Joseph A. PawlakFrancis J. Bajer
    • Joseph A. PawlakFrancis J. Bajer
    • C09K15/20C07C93/26
    • C09K15/20
    • 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.
    • 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。