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    Process for the continuous production of monoisocyanates
    2.
    发明授权
    Process for the continuous production of monoisocyanates 失效
    连续生产单异氰酸酯的方法

    公开(公告)号：US4195031A

    公开(公告)日：1980-03-25

    申请号：US965648

    申请日：1978-12-20

    申请人： Wolfgang Reichmann ,  Klaus Konig ,  Johannes Koster

    发明人： Wolfgang Reichmann ,  Klaus Konig ,  Johannes Koster

    IPC分类号： C07C265/02 ,  C07C20060101 ,  C07C67/00 ,  C07C241/00 ,  C07C263/04 ,  C07C265/04 ,  C07C118/00

    CPC分类号： C07C263/04

    摘要： The instant invention relates to an improved process for the continuous production of an aliphatic monoisocyanate from the corresponding N-alkyl carbamic acid aryl ester. More particularly, the invention is directed to a process for the continuous production of monoisocyanates corresponding to the formulaR--NCOin whichR represents an aliphatic hydrocarbon radical containing 1 to 3 carbon atoms comprising thermally decomposing the corresponding N-alkylcarbamic acid aryl esters corresponding to the formulaR--NH--CO--O--R'in whichR has the meaning above andR' represents a radical of the type obtained by removing the hydroxyl group from a monophenol having a boiling point below 250.degree. C. at normal pressure, and separating the decomposition products by decomposition, further characterized in that(a) a solution of the N-alkylcarbamic acid aryl ester in an organic solvent, which solvent is inert under the reaction conditions and has a boiling point lying at least 20.degree. C. above the boiling point of the monoisocyanate to be formed, is heated to a temperature of from 160.degree. C. to 250.degree. C. at normal pressure or at slightly reduced pressure within the range of 200 to 1013 mbar, thereby resulting in the decomposition of the ester into the corresponding monoisocyanate and the corresponding phenol, as well as the evaporation of the solvent and the decomposition products, and(b) the vapors formed are fed into a distillation column with the monoisocyanate obtained at the head of the column and with the phenol and at least a major portion of the solvent obtained from a side stream or from several side streams.

    摘要翻译： 本发明涉及从相应的N-烷基氨基甲酸芳基酯连续制备脂族单异氰酸酯的改进方法。 更具体地说，本发明涉及连续制备相应于式R-NCO的单异氰酸酯的方法，其中R代表含有1至3个碳原子的脂族烃基，包括热分解相应的N-烷基氨基甲酸芳基酯 式R-NH-CO-OR'其中R具有上述含义，R'表示通过在常压下从沸点低于250℃的单酚除去羟基得到的类型的基团，并且分离 分解产物，其特征还在于（a）N-烷基氨基甲酸芳基酯在有机溶剂中的溶液，该溶剂在反应条件下是惰性的，并且沸点至少在20℃以上 要形成的单异氰酸酯的沸点在常压或稍微减压的范围内加热到160℃至250℃的温度 e为200至1013毫巴，从而导致酯分解成相应的单异氰酸酯和相应的苯酚，以及溶剂和分解产物的蒸发，和（b）所形成的蒸气进料到蒸馏塔 与在柱的头部和苯酚获得的单异氰酸酯以及从侧流或从多个侧流获得的至少大部分溶剂。

    Polyisocyanates, preparation and use thereof
    4.
    发明授权
    Polyisocyanates, preparation and use thereof 失效
    聚异氰酸酯，其制备和用途

    公开(公告)号：US4373080A

    公开(公告)日：1983-02-08

    申请号：US105356

    申请日：1979-12-19

    申请人： Wolfgang Reichmann ,  Klaus Konig ,  Manfred Schonfelder

    发明人： Wolfgang Reichmann ,  Klaus Konig ,  Manfred Schonfelder

    IPC分类号： C08G18/00 ,  C07C67/00 ,  C07C239/00 ,  C07C275/62 ,  C08G18/78 ,  C08G18/80 ,  C07C127/24

    CPC分类号： C08G18/7831 ,  C07C275/62 ,  C08G18/7818 ,  C08G18/8038 ,  Y02P20/582

    摘要： The present invention relates to a process for the production of specific polyisocyanates by reacting diamines containing hydrogen atoms which are active in the context of the isocyanate addition reaction with excess quantities of organic diisocyanates. The invention also relates to a modification of the above process characterized in that the diamines are reacted first with excess quantities of a first diisocyanate after which the thus obtained reaction product which contains a urea group and a biuret group is reacted in a second stage with a second diisocyanate. The invention also relates to the use of polyisocyanates as the isocyanate component in the production of polyurethane plastics by the isocyanate-polyaddition process.

    摘要翻译： 本发明涉及通过使异氰酸酯加成反应中有活性的含有氢原子的二胺与过量的有机二异氰酸酯反应制备特定的多异氰酸酯的方法。 本发明还涉及上述方法的改进，其特征在于二胺首先与过量的第一种二异氰酸酯反应，然后将由此得到的包含脲基和缩二脲基的反应产物在第二阶段与 第二异氰酸酯。 本发明还涉及通过异氰酸酯加聚方法在聚氨酯塑料生产中使用多异氰酸酯作为异氰酸酯组分。

    Process for the preparation of polyisocyanates containing biuret and/or higher polyuret groups and use thereof as synthesis component in the preparation of polyurethane plastics
    5.
    发明授权
    Process for the preparation of polyisocyanates containing biuret and/or higher polyuret groups and use thereof as synthesis component in the preparation of polyurethane plastics 失效
    制备含有缩二脲和/或更高级聚脲基团的多异氰酸酯的方法及其在制备聚氨酯塑料中作为合成成分的用途

    公开(公告)号：US4340712A

    公开(公告)日：1982-07-20

    申请号：US105368

    申请日：1979-12-19

    申请人： Wolfgang Reichmann ,  Klaus Konig ,  Manfred Schonfelder

    发明人： Wolfgang Reichmann ,  Klaus Konig ,  Manfred Schonfelder

    IPC分类号： C08G18/00 ,  C07C273/18 ,  C07C275/62 ,  C08G18/78 ,  C08G18/80 ,  C07C127/22

    CPC分类号： C08G18/8038 ,  C07C273/1827 ,  C08G18/7818 ,  C08G18/7831 ,  Y02P20/582

    摘要： A process for the preparation of polyisocyanates containing biuret and/or higher polyuret groups by reacting secondary diamines with diisocyanates characterized in that the reaction is carried out in the presence of catalytic quantities of strong acids which form mixed carbamic acid anhydrides with isocyanates. Alternatively, the secondary diamines may be reacted with organic diisocyanates in the absence of catalysts to form a urea diisocyanate which is then reacted in the presence of catalytic quantities of strong acids which form mixed carbamic acid anhydrides either with the same diisocyanate used in the first step or a second diisocyanate. The invention also relates to the polyisocyanates containing biuret and/or higher polyuret groups obtainable by this process.

    摘要翻译： 通过使仲二胺与二异氰酸酯反应制备含有缩二脲和/或更高级聚脲基团的多异氰酸酯的方法，其特征在于反应在催化量的形成混合氨基甲酸酐的强酸与异氰酸酯的存在下进行。 或者，仲二胺可以在不存在催化剂的情况下与有机二异氰酸酯反应以形成脲二异氰酸酯，然后在催化量的强酸存在下反应，所述强酸形成混合的氨基甲酸酐，或者与第一步中使用的相同的二异氰酸酯 或第二二异氰酸酯。 本发明还涉及通过该方法可获得的含有缩二脲和/或更高级聚脲基团的多异氰酸酯。

    Process for the preparation of neopentyl glycol polyesters and co-polyesters
    6.
    发明授权
    Process for the preparation of neopentyl glycol polyesters and co-polyesters 失效
    新戊二醇聚酯和共聚酯的制备方法

    公开(公告)号：US4338431A

    公开(公告)日：1982-07-06

    申请号：US122149

    申请日：1980-02-15

    申请人： Klaus Konig ,  Wolfgang Reichmann ,  Manfred Schonfelder

    发明人： Klaus Konig ,  Wolfgang Reichmann ,  Manfred Schonfelder

    IPC分类号： C08G18/00 ,  C08G18/42 ,  C08G63/16 ,  C08G63/18 ,  C08G63/181 ,  C08G63/78 ,  C09D167/00 ,  C09J167/00 ,  C08G63/22

    CPC分类号： C08G63/78 ,  C08G63/16

    摘要： The present invention relates to an improved process for the preparation of neopentyl glycol polyesters by reacting neopentyl glycol with carboxylic acids or derivatives thereof in the presence of minor amounts of glycols which boil at lower temperatures than neopentyl glycol. These low-boiling glycols obviate previous difficulties relating to the sublimation of neopentyl glycol. Thus, the present process offers safety advantages since neopentyl glycol does not crystallize in the reaction apparatus and also provides better control over the molecular ratio of acid groups to alcohol groups.

    摘要翻译： 本发明涉及通过新戊二醇与羧酸或其衍生物在少量二醇的存在下反应来制备新戊二醇聚酯的改进方法，所述二元醇在比新戊二醇低的温度下沸腾。 这些低沸点乙二醇消除了以前关于新戊二醇升华的困难。 因此，本方法提供安全性优点，因为新戊二醇在反应装置中不结晶，并且还提供对酸基与醇基的分子比的更好控制。

    Process for the preparation of an aliphatic monoisocyanate
    7.
    发明授权
    Process for the preparation of an aliphatic monoisocyanate 失效
    制备脂肪族单异氰酸酯的方法

    公开(公告)号：US4146550A

    公开(公告)日：1979-03-27

    申请号：US817082

    申请日：1977-07-18

    申请人： Wolfgang Reichmann ,  Klaus Konig

    发明人： Wolfgang Reichmann ,  Klaus Konig

    IPC分类号： C07C265/02 ,  C07C20060101 ,  C07C67/00 ,  C07C241/00 ,  C07C263/04 ,  C07C265/04 ,  C07C118/00

    CPC分类号： C07C263/04

    摘要： This invention relates to an improved process for the preparation of an aliphatic monoisocyanate from the corresponding carbamic acid chloride. The carbamic acid chloride is reacted with an active hydrogen compound. The reaction is conducted in the presence of a solvent which is inert under the reaction conditions. Addition compounds are formed with the elimination of hydrogen chloride. The addition compounds are subsequently decomposed by heat into the desired isocyanate with the mixture also containing the active hydrogen compound. The monoisocyanate is subsequently removed by distillation.

    摘要翻译： 本发明涉及从相应的氨基甲酰氯制备脂族单异氰酸酯的改进方法。 使氨基甲酰氯与活性氢化合物反应。 反应在反应条件下为惰性溶剂的存在下进行。 加入化合物是通过消除氯化氢而形成的。 加入的化合物随后通过加热分解成所需的异氰酸酯，混合物中也含有活性氢化合物。 随后通过蒸馏除去单异氰酸酯。

    Polyurethane-based thickeners for aqueous compositions
    10.
    发明授权
    Polyurethane-based thickeners for aqueous compositions 失效
    用于水性组合物的聚氨酯类增稠剂

    公开(公告)号：US5612408A

    公开(公告)日：1997-03-18

    申请号：US593036

    申请日：1996-01-29

    申请人： Klaus Konig ,  Jurgen Schwindt ,  Jan Mazanek ,  Josef Pedain ,  Manfred Dietrich ,  Gerhard Klein ,  Karl-Roland Jerg

    发明人： Klaus Konig ,  Jurgen Schwindt ,  Jan Mazanek ,  Josef Pedain ,  Manfred Dietrich ,  Gerhard Klein ,  Karl-Roland Jerg

    IPC分类号： C09K3/00 ,  C08G18/28 ,  C08G18/48 ,  C08G65/28 ,  C08L75/00 ,  C08L75/08 ,  C09D7/00 ,  C09D175/00 ,  C09D175/04 ,  C08G18/12 ,  C08G18/42

    CPC分类号： C08G18/4833 ,  C08G18/283 ,  C09D7/002 ,  C08L75/04

    摘要： The present invention relates to a process for the preparation of polyurethanes suitable for use as thickeners for aqueous compositions by reacting at an NCO/OH equivalent ratio of 0.9:1 to 1.2:1a) a polyether component having an OH number of 10 to 30 mg KOH/g and obtained by the alkoxylation of a mixture ofa1) 30 to 80 mole % of a monofunctional alcohol or alkylphenol having 8 to 30 carbon atoms,a2) 2 to 10 mole % of sodium hydroxide or potassium hydroxide,a3) 10 to 60 mole % of water anda4) 0 to 10 mole % of a trihydric to hexahydric alcohol having a molecular weight of 92 to 600, with ethylene oxide or a mixture of ethylene oxide with up to 20 mole %, based on the total moles of alkylene oxides, of propylene oxide, in which the percentages of a1) to a4) add up to 100,withb) a polyisocyanate component containing at least one organic diisocyanate, optionally in admixture with up to 20 mole %, based on the total moles of component b), of higher than difunctional polyisocyanates.The invention also relates to the polyurethanes obtainable by this method and their use, optionally in combination with other thickeners, for the thickening of aqueous systems.

    摘要翻译： 本发明涉及一种制备适合用作水性组合物增稠剂的聚氨酯的方法，其通过以0.9:1至1.2:1的NCO / OH当量比反应a）OH数为10至30的聚醚组分 mg KOH / g，通过a1）30〜80摩尔％的单官能醇或碳原子数为8〜30的烷基酚的混合物的烷氧基化得到，a2）2〜10摩尔％的氢氧化钠或氢氧化钾，a3）10 至60摩尔％的水和a4）0至10摩尔％的分子量为92至600的三元至六元醇与环氧乙烷或环氧乙烷的混合物至多20摩尔％，基于总摩尔数 的环氧丙烷，其中a1）至a4）的百分比加到100，其中b）含有至少一种有机二异氰酸酯的多异氰酸酯组分，任选地与至多20摩尔％的混合物，基于总计 组分b）的摩尔数高于双官能多异氰酸酯。 本发明还涉及通过该方法获得的聚氨酯，以及它们用于任选与其它增稠剂组合的用于增稠水性体系的用途。