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11 条记录 (耗时 0.018 秒)

    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives
    1.
    发明授权
    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives 失效
    制备2,3,4,5-四氟苯衍生物的方法

    公开(公告)号：US06613948B1

    公开(公告)日：2003-09-02

    申请号：US09152595

    申请日：1998-09-14

    申请人： Otto Neuner ,  Norbert Lui ,  Dietmar Bielefeldt ,  Michael Holzbrecher

    发明人： Otto Neuner ,  Norbert Lui ,  Dietmar Bielefeldt ,  Michael Holzbrecher

    IPC分类号： C07C2200

    CPC分类号： C07C51/62 ,  C07C17/208 ,  C07C17/383 ,  C07C51/64 ,  C07C253/30 ,  C07C63/70 ,  C07C255/50 ,  C07C25/13

    摘要： 2,3,4,5-tetrafluorobenzene derivatives can be obtained in a particularly advantageous manner by reacting the corresponding chlorobenzene or (chloro, fluoro)-benzene derivatives with a fluorinating agent in the presence of a solvent and a catalyst at elevated temperature, which comprises carrying out the reaction initially under temperature and pressure conditions such that the respective 2,3,4,5-tetrafluoro-benzene derivative continuously distills off through a column, and subsequently setting temperature and pressure conditions such that residual fractions of the 2,3,4,5-tetrafluorobenzene derivative distill off with the corresponding 2,3,4-trifluoro-5-chloro compound.

    摘要翻译： 通过在溶剂和催化剂存在下，在升高的温度下使相应的氯苯或（氯，氟） - 苯衍生物与氟化剂反应，可以以特别有利的方式获得2,3,4,5-四氟苯衍生物， 包括最初在温度和压力条件下进行反应，使得相应的2,3,4,5-四氟苯衍生物通过柱连续蒸馏出来，随后设定温度和压力条件，使得2,3 ，4,5-四氟苯衍生物与相应的2,3,4-三氟-5-氯化合物蒸馏出。

    Process for the preparation of substituted benzaldehydes
    2.
    发明授权
    Process for the preparation of substituted benzaldehydes 失效
    取代的苯甲醛的制备方法

    公开(公告)号：US4622429A

    公开(公告)日：1986-11-11

    申请号：US640414

    申请日：1984-08-13

    申请人： Heinz U. Blank ,  Erich Wolters ,  Otto Neuner

    发明人： Heinz U. Blank ,  Erich Wolters ,  Otto Neuner

    IPC分类号： C07C47/52 ,  B01J27/00 ,  B01J27/08 ,  C07B61/00 ,  C07C45/00 ,  C07C45/49 ,  C07C67/00

    CPC分类号： C07C45/49

    摘要： Substituted benzaldehydes are prepared by reaction of the substituted benzenes from which they are derived with carbon monoxide and hydrogen chloride in the presence of metal halides, the process being performed in the presence of 0.5 to 10 mols of hydrogen chloride per mol of metal halide at a partial pressure of carbon monoxide from 1 to 100 bars and a temperature from -20.degree. C. to +100.degree. C. and, if desired, in the presence of an inert diluent. The substituted benzaldehyde which contains, as a substituent, alkyl with at least 2 carbon atoms, cycloalkyl or optionally substituted benzyl, is prepared by reacting the appropriately substituted benzene with the additional presence of a benzene which does not contain the substituents mentioned, but which is identical in respect of further substituents which are optionally present with the benzene from which it is derived.

    摘要翻译： 取代的苯甲醛通过在金属卤化物存在下使衍生自它们的取代苯与氯化氢反应来制备，该方法是在0.5至10摩尔氯化氢/摩尔金属卤化物存在下进行的 一氧化碳分压为1至100巴，温度为-20℃至+100℃，如果需要，在惰性稀释剂存在下进行。 含有至少2个碳原子的烷基取代的苯甲醛，环烷基或任意取代的苄基，是通过使适当取代的苯与不含上述取代基的苯进一步存在而制备的， 对于任选存在于其衍生的苯的另外的取代基是相同的。

    Process for the preparation of bis-triazolylstilbenes
    4.
    发明授权
    Process for the preparation of bis-triazolylstilbenes 失效
    双三唑并苯二烯的制备方法

    公开(公告)号：US4217449A

    公开(公告)日：1980-08-12

    申请号：US950438

    申请日：1978-10-11

    申请人： Alfons Dorlars ,  Otto Neuner

    发明人： Alfons Dorlars ,  Otto Neuner

    IPC分类号： C09B57/00 ,  C07D249/06 ,  C09K3/00

    CPC分类号： C07D249/06

    摘要： Process for the preparation of bis-triazolylstilbene compounds which, in the form of the free acid, correspond to the formula ##STR1## wherein the phenyl radicals A can be substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, from bis-hydroxyiminohydrazonostilbene compounds of the formula ##STR2## characterized in that the bis-hyroxyiminohydrazonostilbene compounds are reacted with anhydrides of lower carboxylic acids in the presence of urea and polar solvents at temperatures from 10.degree. to 60.degree. C.

    摘要翻译： 以游离酸的形式对应于式（Ⅰ）的双 - 三唑基芪化合物的方法，其中苯基A可被卤素，C 1 -C 4 - 烷基或C 1 -C 4烷氧基取代， 双 - 羟基亚氨基腙茋化合物，其特征在于，在尿素和极性溶剂的存在下，双羟基亚氨基腙基茋化合物与低级羧酸的酸酐在10℃至60℃的温度下反应。

    Process for the preparation of polyarylene sulphides
    7.
    发明授权
    Process for the preparation of polyarylene sulphides 失效
    聚亚芳基硫醚的制备方法

    公开(公告)号：US4433138A

    公开(公告)日：1984-02-21

    申请号：US379036

    申请日：1982-05-17

    申请人： Karsten Idel ,  Dieter Freitag ,  Ludwig Bottenbruch ,  Otto Neuner

    发明人： Karsten Idel ,  Dieter Freitag ,  Ludwig Bottenbruch ,  Otto Neuner

    IPC分类号： C08G75/02 ,  C08G75/06 ,  C08G75/14

    CPC分类号： C08G75/0254 ,  C08G75/0231

    摘要： High molecular weight p-polyarylensulfides having a high melt viscosity, capable of being processed thermoplastically, and have good mechanical properties are produced by reacting components (a), (b), and (c) in a polar solvent with a molar ratio of (a):(c) in the range of 0.85:1 to 1.15:1 and a molar ratio of (c): solvent in the range of 1:2 to 1:15, for a time of up to 10 hours at a temperature of from 160.degree. C. to 300.degree. C., and in the presence of from 2 to 100 mole percent, relative to (c), of an N,N-dialkylcarboxamide;wherein component (a) is dihalogenobenzene with 50 to 100 mole percent of the formula ##STR1## and 0 to 50 mole percent of the formula ##STR2## wherein X is fluoro, chloro, bromo or iodo, and R is the same or different and each is selected from the group consisting of hydrogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 5 to 20 carbon atoms, aryl having 6 to 24 carbon atoms, alkaryl having 7 to 24 carbon atoms, aralkyl having 7 to 24 carbon atoms, and two R moieties linked together forming aryl having 6 to 24 carbon atoms or a heterocyclic moiety having an oxygen, nitrogen or sulphur hetero-atom and having 6 to 24 carbon atoms; with the proviso that at least one R is not hydrogen;component (b) is 0.1 to 2.4 mole percent, relative to the dihalogenobenzene, of a polyhalogenoaromatic of the formulaArX.sub.nwherein Ar is aryl or a heterocyclic moiety having an oxygen, nitrogen or sulphur heteroatom with said aryl and said heterocyclic each having from 6 to 24 carbon atoms;X is fluoro, chloro, bromo or iodo; andn is 3 or 4;and component (c) is alkali metal sulphide.

    摘要翻译： 通过使组分（a），（b）和（c）在极性溶剂中以摩尔比为（（a），（b）和（c））反应，可以通过热塑性地热处理和具有良好的机械性能而具有高熔体粘度的高分子量对聚芳基硫化物 a）：（c）在0.85:1至1.15:1的范围内，（c）：溶剂的摩尔比在1:2至1:15的范围内，在温度下达10小时 相对于（c）为2〜100摩尔％的N，N-二烷基甲酰胺; 其中组分（a）是二卤代苯，其具有50-100摩尔％的式“IMAGE”和0至50摩尔％的式“IMAGE”，其中X是氟，氯，溴或碘，R是相同或不同的， 各自选自氢，具有1至20个碳原子的烷基，具有5至20个碳原子的环烷基，具有6至24个碳原子的芳基，具有7至24个碳原子的烷芳基，具有7至24个碳原子的芳烷基， 和两个连接在一起的R部分形成具有6至24个碳原子的芳基或具有氧，氮或硫杂原子并具有6至24个碳原子的杂环部分; 条件是至少一个R不是氢; 组分（b）相对于二卤代苯，为式ArXn的多卤代芳族化合物的0.1至2.4摩尔％，其中Ar为芳基或具有氧，氮或硫杂原子的杂环部分，所述芳基和所述杂环各自具有6至 24个碳原子; X是氟，氯，溴或碘; n为3或4; 组分（c）是碱金属硫化物。

    Polyamine crosslinking agent formulation and its preparation
    9.
    发明授权
    Polyamine crosslinking agent formulation and its preparation 失效
    多胺交联剂配方及其制备

    公开(公告)号：US5705594A

    公开(公告)日：1998-01-06

    申请号：US767564

    申请日：1996-12-16

    申请人： Klaus Konig ,  Otto Neuner ,  Werner Rasshofer

    发明人： Klaus Konig ,  Otto Neuner ,  Werner Rasshofer

    IPC分类号： C07D251/34 ,  C08G59/50 ,  C08J3/24 ,  C08K5/3492 ,  C08L63/00 ,  C08L73/02 ,  C08L79/02 ,  C08G18/08 ,  C08G18/10

    CPC分类号： C08G59/5086 ,  C07D251/34

    摘要： Liquid polyamine crosslinking agent formulations based on trimerized toluylene 2,4- and/or 2,6-diisocyanate, with formation of an isocyanurate structure and hydrolysis of the isocyanate groups to amine groups, are described. The novel crosslinking agent formulations have a content of 40 to 80% of the total weight of the solids content of the crosslinking agent formulation of 1,3,5-tris-(3-amino-4-methyl-phenyl,2-methyl-3-aminophenyl) isocyanurate (I) which is not further condensed, and a content of not more than 1.0% of the total weight of the crosslinking agent formulations of toluylene-2,4- and/or -2,6-diamine (III). For the preparation, toluylene diisocyanate is trimerized, to form the isocyanurate structure, until 10 to 25% of the NCO groups have been reacted. The toluylene diisocyanate which has not undergone condensation is then distilled off, the bottom product formed by this operation is taken up directly in a solvent A and the 30 to 70% strength by weight solution formed by this procedure is metered into a hydrolysis in water/N,N-dialkyl-carboxylic acid amide in the presence of a catalytic amount of a basic catalyst. After the hydrolysis, the crosslinking agent formulations are brought to a solids content of 35 to 60% of the total weight of the formulation by distilling off a portion of the solvents and adding a solvent B.

    摘要翻译： 描述了基于三聚甲苯2,4-和/或2,6-二异氰酸酯的液态多胺交联剂制剂，其形成异氰脲酸酯结构和将异氰酸酯基团水解为胺基。 新型交联剂配方的含量为交联剂配方的1,3,5-三（3-氨基-4-甲基 - 苯基，2-甲基 - 苯基） - 苯胺的固体含量的总重量的40-80％ 3-氨基苯基）异氰脲酸酯（I），其不再进一步缩合，并且不大于甲苯-2,4-和/或-2,6-二胺（III）的交联剂配方的总重量的1.0重量％ ）。 为了制备，将甲苯二异氰酸酯进行三聚，形成异氰脲酸酯结构，直到10〜25％的NCO基团都已反应。 然后蒸馏除去未进行冷凝的甲苯二异氰酸酯，将通过该操作形成的底部产物直接溶于溶剂A中，并将通过该方法形成的30-70重量％的重量浓度的溶液计量加入水/ N，N-二烷基 - 羧酸酰胺在催化量的碱性催化剂存在下反应。 水解后，通过蒸馏掉一部分溶剂并加入溶剂B使交联剂配方的固体含量达到制剂总重量的35至60％。