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    Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates
    1.
    发明授权
    Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates 失效
    制备二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物的方法

    公开(公告)号：US4349484A

    公开(公告)日：1982-09-14

    申请号：US197890

    申请日：1980-10-17

    申请人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae ,  Wolfgang Harder

    发明人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae ,  Wolfgang Harder

    IPC分类号： C07C67/00 ,  C07C241/00 ,  C07C265/12 ,  C07C265/14 ,  C07C271/06 ,  C07C119/048

    CPC分类号： C07C263/04 ,  C07C271/06

    摘要： A process for the production of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates comprising the steps ofA. reacting aniline and an O-alkyl carbamate to form N-phenylurethanes;B. isolating the N-phenylurethanes;C. condensing, in the presence of an acid, the N-phenylurethanes with formaldehyde or bifunctional compounds having the formulaX--CH.sub.2 --X in which X stands for a RO--, RS-- or ROCO radical and R denotes an alkyl radical, to form mixtures of methylene bis(phenylurethanes) and polymethylene polyphenylurethanes;D. cleaving the mixtures of methylene bis(phenylurethanes) and polymethylene polyphenylurethanes at temperatures of 175.degree. C. to 600.degree. C.; andE. isolating the mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanate resulting from step D.

    摘要翻译： 制备二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物的方法，其包括以下步骤：A.使苯胺和氨基甲酸O-烷基酯反应形成N-苯基氨基甲酸酯; B.分离N-苯基氨基甲酸酯; C.在酸存在下，将N-苯基氨基甲酸酯与具有式X-CH 2 -X的甲醛或双官能化合物缩合，其中X代表RO-，RS-或ROCO基团，R表示烷基，至 形成亚甲基双（苯基氨基甲酸酯）和多亚甲基多苯基氨基甲酸酯的混合物; D.在175℃至600℃的温度下切割亚甲基双（苯基氨基甲烷）和多亚甲基多苯基氨基甲酸酯的混合物。 和E.分离由步骤D得到的二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物。

    Preparation of carbamates
    3.
    发明授权
    Preparation of carbamates 失效
    氨基甲酸酯的制备

    公开(公告)号：US4537960A

    公开(公告)日：1985-08-27

    申请号：US529037

    申请日：1983-09-02

    申请人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae

    发明人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae

    IPC分类号： C07D295/13 ,  C07C125/065 ,  C07D265/30 ,  C07D295/14

    CPC分类号： C07D295/13

    摘要： N- and O-substituted carbamates are prepared by reacting urea with an aminopropanol at 140.degree. C. or above. The compounds obtained by the novel process are useful starting materials for the preparation of textile finishing agents, stabilizers, plasticizers, dyes and crop protection agents.

    摘要翻译： N-和O-取代的氨基甲酸酯通过使脲与氨基丙醇在140℃或更高温度下反应来制备。 通过新方法获得的化合物是用于制备纺织整理剂，稳定剂，增塑剂，染料和作物保护剂的起始材料。

    Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms
    4.
    发明授权
    Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms 失效
    其中亚烷基为6个碳原子的六亚甲基1,6-二异氰酸酯和/或异构二异氰酸酯的制备

    公开(公告)号：US4613466A

    公开(公告)日：1986-09-23

    申请号：US754751

    申请日：1985-07-15

    申请人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae ,  Hans Hellbach

    发明人： Franz Merger ,  Gerhard Nestler ,  Friedrich Towae ,  Hans Hellbach

    IPC分类号： C07C263/04 ,  C07C265/04 ,  C08G18/73 ,  C07C141/00

    CPC分类号： C08G18/73 ,  C07C263/04

    摘要： Hexamethylene 1,6-diisocyanate and/or isomeric aliphatic diisocyanates where alkylene is of 6 carbon atoms, preferably 2-methylpentamethylene 1,5-diisocyanate and/or 2-ethyltetramethylene 1,4-diisocyanate, are prepared by a process wherein the corresponding dialkylurethanes are vaporized, without decomposition, at from 220.degree. to 300.degree. C., advantageously under reduced pressure, the dialkylurethane vapors are subjected to thermal cleavage under reduced pressure, preferably from 0.1 to 200 mbar, and at above 300.degree. C., preferably from 310.degree. to 480.degree. C. The cleavage products are fractionally condensed with the product obtained in the first condensation stage consisting predominantly of the diisocyanates, while that obtained in the second condensation stage is the alcohol.

    摘要翻译： 其中亚烷基具有6个碳原子的六亚甲基-1,6-二异氰酸酯和/或异构脂族二异氰酸酯，优选2-甲基五亚甲基-1,5-二异氰酸酯和/或2-乙基四亚甲基1,4-二异氰酸酯，其中相应的二烷基氨基甲酸酯 在220℃至300℃，有利地在减压下蒸发而不分解，将二烷基氨基甲酸酯蒸气在减压下进行热裂解，优选在0.1至200毫巴，高于300℃，优选从 310℃至480℃。裂解产物与主要由二异氰酸酯组成的第一冷凝阶段中获得的产物分馏，而在第二冷凝阶段获得的产物是醇。

    Process for the preparation of an aryl mono-, di-, and/or polyurethane
    5.
    发明授权
    Process for the preparation of an aryl mono-, di-, and/or polyurethane 失效
    芳基单 - ，二 - 和/或聚氨酯的制备方法

    公开(公告)号：US4375000A

    公开(公告)日：1983-02-22

    申请号：US135242

    申请日：1980-03-31

    申请人： Franz Merger ,  Friedrich Towae ,  Wolfgang Harder

    发明人： Franz Merger ,  Friedrich Towae ,  Wolfgang Harder

    IPC分类号： C07C271/06 ,  C07C125/07 ,  C07C125/063 ,  C07C125/077

    CPC分类号： C07C271/06

    摘要： A process for the preparation of an aryl mono-, di-, and/or polyurethane comprising the steps of A. reacting a primary aromatic mono-, di-, and/or polyamine with an O-alkyl carbamate in the presence of an alcohol at temperatures greater than 160.degree. C., andB. separating the ammonia and other by-products from the aryl mono-, di-, and/or polyurethane.The reaction is preferably carried out in the presence of urea. The aryl mono-, di-, and/or polyurethanes produced are valuable end and intermediate products. They can be transferred into the corresponding isocyanates which can then be used for the preparation of polyurethanes.

    摘要翻译： 一种制备芳基单 - ，二 - 和/或聚氨酯的方法，包括以下步骤：在醇存在下使主芳族单 - ，二 - 和/或多胺与氨基甲酸O-烷基酯反应 在大于160℃的温度下，和B.将氨和其它副产物与芳基单 - ，二 - 和/或聚氨酯分离。 反应优选在尿素存在下进行。 所生产的芳基单，二和/或聚氨酯是有价值的终端和中间产物。 它们可以转移到相应的异氰酸酯中，然后可以用于制备聚氨酯。

    Preparation of carbonates
    6.
    发明授权
    Preparation of carbonates 失效
    碳酸盐的制备

    公开(公告)号：US4436668A

    公开(公告)日：1984-03-13

    申请号：US267763

    申请日：1981-05-28

    申请人： Wolfgang Harder ,  Franz Merger ,  Friedrich Towae

    发明人： Wolfgang Harder ,  Franz Merger ,  Friedrich Towae

    IPC分类号： C07C69/96 ,  B01J27/125 ,  B01J31/00 ,  B01J31/02 ,  B01J31/04 ,  B01J31/26 ,  C07B61/00 ,  C07C68/00

    CPC分类号： C07C68/00

    摘要： Carbonates are prepared by reacting carbamic acid esters with alcohols at above 140.degree. C., the ammonia formed being stripped from the reaction mixture during the reaction by passing an inert gas or vapor therethrough.The carbonates obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and plastics.

    摘要翻译： 通过在140℃以上使氨基甲酸酯与醇反应制备碳酸盐，在反应过程中通过使惰性气体或蒸汽通过其中形成的氨被从反应混合物中汽提。 通过本发明方法可获得的碳酸酯是用于制备染料，作物保护剂和塑料的有价值的起始材料。

    Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue
    7.
    发明授权
    Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue 失效
    用于制备在亚烷基残基中具有6个碳原子的六亚甲基二异氰酸酯-1,6-和/或异构脂族二异氰酸酯的多步法

    公开(公告)号：US4596678A

    公开(公告)日：1986-06-24

    申请号：US600143

    申请日：1984-04-13

    申请人： Franz Merger ,  Friedrich Towae ,  Hans Hellbach ,  Gunther Isbarn ,  Waldemar Koehler

    发明人： Franz Merger ,  Friedrich Towae ,  Hans Hellbach ,  Gunther Isbarn ,  Waldemar Koehler

    IPC分类号： C07C265/14 ,  C07C67/00 ,  C07C69/00 ,  C07C241/00 ,  C07C263/04 ,  C07C263/06 ,  C07C265/04

    CPC分类号： C07C263/04

    摘要： Hexamethylene diisocyanate and/or isomeric alkylene diisocyanates having 6 carbon atoms in the alkylene radical, preferably 2-methylpentamethylene 1,5-diisocyanate and/or 2-ethyltetramethylene 1,4-diisocyanate are prepared without the use of phosgene in a multiple-step process by means of(a) reacting hexamethylene 1,6-diamine and/or isomeric alkylene diamines having 6 carbon atoms in the alkylene radical with urea and alcohol in the presence of dialkyl carbonate and/or carbamic acid alkyl ester as well as, in some cases, catalysts to form hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(b) separation and return to reaction step (a) of alcohol, dialkyl carbonate, and/or carbamic acid alkyl ester from the reaction mixture(c) evaporation of the hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(d) cleavage of the vaporized diurethanes into hexamethylene diisocyanate and/or isomeric alkylene diisocyanate having 6 carbon atoms in the alkylene radical and alcohol, and(e) fractional condensation of the cleavage products.

    摘要翻译： 在多步法中不使用光气制备在亚烷基中具有6个碳原子的六亚甲基二异氰酸酯和/或异构亚烷基二异氰酸酯，优选2-甲基五亚甲基-1,5-二异氰酸酯和/或2-乙基四亚甲基1,4-二异氰酸酯 通过（a）在碳酸二烷基酯和/或氨基甲酸烷基酯的存在下，使亚烷基中的六亚甲基1,6-二胺和/或具有6个碳原子的异构亚烷基二胺与脲和醇反应，以及在一些 情况下，在亚烷基中形成具有6个碳原子的六亚甲基1,6-二烷基氨基甲酸酯和/或异构亚烷基二烷基氨基甲酸酯的催化剂，（b）分离并返回到醇，碳酸二烷基酯和/或氨基甲酸烷基酯的反应步骤（a） （c）在亚烷基中蒸发具有6个碳原子的六亚甲基1,6-二烷基氨基甲酸酯和/或异构亚烷基二烷基氨基甲酸酯，（d）将汽化的二氨基甲酸酯裂解成h 亚烷基二异氰酸酯和/或亚烷基和醇中具有6个碳原子的异构亚烷基二异氰酸酯，和（e）裂解产物的分级缩合。

    Preparation of N-aryloxazolidine-2,4-diones
    8.
    发明授权
    Preparation of N-aryloxazolidine-2,4-diones 失效
    N-芳基恶唑烷-2,4-二酮的制备

    公开(公告)号：US4294971A

    公开(公告)日：1981-10-13

    申请号：US127759

    申请日：1980-03-06

    申请人： Franz Merger ,  Friedrich Towae

    发明人： Franz Merger ,  Friedrich Towae

    IPC分类号： B01J23/00 ,  C07B61/00 ,  C07D263/44 ,  C07D263/52 ,  C07D263/04

    CPC分类号： C07D263/44

    摘要： N-Aryloxazolidine-2,4-diones are prepared by reacting a nitrobenzene with a 2-hydroxycarboxylic acid ester and carbon monoxide in the presence of selenium and a basic compound under super-atmospheric pressure and at an elevated temperature.The N-aryloxazolidine-2,4-diones of the formula I, obtainable by the process of the invention are valuable active ingredients and starting materials for the preparation of crop protection agents, dyes and drugs.

    摘要翻译： 通过在超大气压和升高的温度下，在硒和碱性化合物的存在下，使硝基苯与2-羟基羧酸酯和一氧化碳反应来制备N-芳基恶唑烷-2,4-二酮。 通过本发明的方法获得的式I的N-芳基恶唑烷-2,4-二酮是用于制备作物保护剂，染料和药物的有价值的活性成分和起始材料。

    Process for the preparation of an aryl mono-, di-, and/or polyurethane
    9.
    发明授权
    Process for the preparation of an aryl mono-, di-, and/or polyurethane 失效
    芳基单 - ，二 - 和/或聚氨酯的制备方法

    公开(公告)号：US4278805A

    公开(公告)日：1981-07-14

    申请号：US135246

    申请日：1980-03-31

    申请人： Franz Merger ,  Friedrich Towae

    发明人： Franz Merger ,  Friedrich Towae

    IPC分类号： C08G18/70 ,  C07C125/07 ,  C07C125/063 ,  C07C125/077

    CPC分类号： C08G18/701

    摘要： A process for the preparation of an aryl-mono and/or polyurethane comprising the steps ofA. reacting a primary aromatic mono, di-, and/or polyamine with an O-alkyl carbamate in the presence of alcohol and catalysts, andB. separating the ammonia and other by-products from the aliphatic and/or cycloaliphatic di- and/or polyurethane.The reaction is preferably carried out in the presence of urea. The aryl mono-, di-, and/or polyurethanes produced are valuable end and intermediate products. They can be transferred into the corresponding isocyanates which can then be used for the preparation of polyurethanes.

    摘要翻译： 一种制备芳基单和/或聚氨酯的方法，包括以下步骤：在醇和催化剂存在下，使伯芳基单，二胺和/或多胺与氨基甲酸O-烷基酯反应。 从脂族和/或脂环族二酯和/或聚氨酯中分离氨和其它副产物。 反应优选在尿素存在下进行。 所生产的芳基单，二和/或聚氨酯是有价值的终端和中间产物。 它们可以转移到相应的异氰酸酯中，然后可以将其用于制备聚氨酯。