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    Process for the preparation of aqueous dispersions of polyurethanes
    3.
    发明授权
    Process for the preparation of aqueous dispersions of polyurethanes 失效
    制备聚氨酯水分散体的方法

    公开(公告)号：US4211683A

    公开(公告)日：1980-07-08

    申请号：US821268

    申请日：1977-08-03

    申请人： Wolfgang Wenzel ,  Dieter Dieterich

    发明人： Wolfgang Wenzel ,  Dieter Dieterich

    IPC分类号： C08G18/00 ,  C08G18/10 ,  C08G18/48 ,  C08G18/84 ,  C09D175/00 ,  C09D175/08 ,  C08L61/28 ,  C08L75/12

    CPC分类号： C08G18/84 ,  C08G18/10 ,  C08G18/4833

    摘要： The present invention relates to a process for the preparation of aqueous dispersions or solutions of polyurethanes which have urea end groups and contain non-ionic hydrophilic segments and which are capable of being cross-linked with the aid of cross-linking agents which are reactive with urea groups, characterized in that prepolymers which have isocyanurate end groups and which(i) have an average molecular weight of less than about 15,000 and(ii) contain from about 2 to 30%, by weight, of ethylene oxide units corresponding to the following formula:--CH.sub.2 --CH.sub.2 --O-- within a polyether chain (containing ethylene oxide units)are reacted at from about 10.degree. to 70.degree. C. with an aqueous solution of ammonia or with a primary amine, optionally dissolved in water, the aqueous solution of ammonia or the primary amine, optionally dissolved in water, being added to the prepolymer in the reaction vessel and the quantity of water used for dissolving the ammonia or primary amine being not more than about 10%, by weight, based on the total quantity of reaction mixture, and finally, after termination of the addition reaction between the free isocyanate groups of the prepolymer and the added ammonia or primary amine, the reaction product obtained is stirred with water at from about 10.degree. to 70.degree. C. to form an aqueous dispersion or solution having a concentration of from about 5 to 65%, by weight. The present invention also relates to the use of dispersions or solutions obtainable by the process according to the present invention for the production of cross-linked sheets by application of the dispersion to a substrate and drying, cross-linking of the sheet being ensured by the addition of a cross-linking agent capable of undergoing a cross-linking reaction with the urea groups either before, during or after application of the solution or dispersion to the substrate.

    摘要翻译： 本发明涉及一种制备聚氨酯水分散体或溶液的方法，其具有尿素端基并含有非离子亲水链段，并且能够借助于与 脲基团，其特征在于具有异氰脲酸酯端基并且（i）平均分子量小于约15,000的预聚物和（ii）含有约2至30重量％的对应于下列物质的环氧乙烷单元 在聚醚链（含环氧乙烷单元）内的式：-CH 2 -CH 2 -O-在约10℃至70℃下与氨水或伯胺反应，任选地溶于水，水溶液 将氨或伯胺（任选溶解在水中）的溶液加入到反应容器中的预聚物中，用于溶解氨或伯胺的水的量不大于 约10重量％，基于反应混合物的总量，最后，在预聚物的游离异氰酸酯基团与加入的氨或伯胺之间的加成反应终止后，将所得反应产物与水 约10℃至70℃，以形成浓度为约5至65重量％的水分散体或溶液。 本发明还涉及通过将本发明的方法获得的分散体或溶液用于生产交联片材的用途，所述分散体或溶液通过将分散体施加到基材上并干燥，由 在将溶液或分散体施加到基底之前，期间或之后，加入能够与尿素基团进行交联反应的交联剂。

    Process for the preparation of modified aqueous synthetic resin dispersions
    4.
    发明授权
    Process for the preparation of modified aqueous synthetic resin dispersions 失效
    改性水性合成树脂分散液的制备方法

    公开(公告)号：US4186118A

    公开(公告)日：1980-01-29

    申请号：US875958

    申请日：1978-02-08

    申请人： Artur Reischl ,  Wolfgang Wenzel ,  Dieter Dieterich

    发明人： Artur Reischl ,  Wolfgang Wenzel ,  Dieter Dieterich

    IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/83 ,  C09D175/00 ,  C09D175/04 ,  C08L75/02 ,  C08L75/04

    CPC分类号： C08G18/10 ,  C09D175/04

    摘要： A process for preparing modified aqueous synthetic resin dispersions, comprising introducing organic diisocyanates which are liquid at room temperature into polyurethane-containing, non-sedimenting, aqueous synthetic resin dispersions, optionally in the presence of catalysts which accelerate the isocyanate polyaddition reaction and/or the dimerization of isocyanate groups and/or the carbodiimidization of isocyanate groups and/or the trimerization of isocyanate groups, mixing the organic diisocyanate with the aqueous dispersion at a temperature at which no visible foaming occurs, maintaining the temperature after addition of all the diisocyanate until at least 50% of the isocyanate groups in the added diisocyanate have undergone reaction and, if desired, completing the reaction by subsequently heating to temperatures up to 100.degree. C.These modified aqueous dispersions contain dispersed latex particles which are enveloped with polyurea formed from the diisocyanates. These modified dispersions are useful as water-resistant surface coatings and leather dressings which are abrasion resistant in the wet.

    摘要翻译： 一种制备改性水合合成树脂分散体的方法，其包括将有机二异氰酸酯在室温下液体引入含聚氨酯的非沉降的水性合成树脂分散体中，任选地在催化剂存在下加速异氰酸酯加聚反应和/或 异氰酸酯基团的二聚化和/或异氰酸酯基团的碳二亚胺化和/或异氰酸酯基团的三聚反应，在不发生可见发泡的温度下将有机二异氰酸酯与水分散体混合，在加入所有二异氰酸酯之后保持温度，直至 加入的二异氰酸酯中的至少50％的异氰酸酯基团已经发生反应，如果需要，通过随后加热至高达100℃的温度完成反应。这些改性的水分散体含有分散的胶乳颗粒，其中包含由二异氰酸酯形成的聚脲 。 这些改性分散体可用作在湿润中耐磨的防水表面涂料和皮革敷料。

    Aqueous polyurethane dispersions from solvent-free prepolymers using sulfonate diols
    6.
    发明授权
    Aqueous polyurethane dispersions from solvent-free prepolymers using sulfonate diols 失效
    使用磺酸二醇的无溶剂预聚物的水性聚氨酯分散体

    公开(公告)号：US4108814A

    公开(公告)日：1978-08-22

    申请号：US777206

    申请日：1977-03-14

    申请人： Helmut Reiff ,  Wolfgang Wenzel ,  Jurgen Grammel ,  Dieter Dieterich

    发明人： Helmut Reiff ,  Wolfgang Wenzel ,  Jurgen Grammel ,  Dieter Dieterich

    IPC分类号： C08G18/08 ,  C08G18/38 ,  C08G18/50 ,  C08G18/12 ,  C08G18/84

    CPC分类号： C08G18/5072 ,  C08G18/0828 ,  C08G18/3855 ,  C08G2170/80

    摘要： This invention relates to a process for the production of water dispersible polyurethanes by reacting polyisocyanates with sulphonate group containing diols. The sulphonate diols have the general formula: ##STR1## WHEREIN A and B, which may be the same or different, each represents a divalent aliphatic hydrocarbon group containing from 1 to 6 carbon atoms,R represents hydrogen, an aliphatic hydrocarbon group containing 1 to 4 carbon atoms or a phenyl group,X.sup.(+) represents an alkali metal cation or ammonium group which may be substitutedn and m, which may be the same or different, each represents an integer between 0 and 30 inclusive,o and p, represent 0 or 1, andq represents an integer of 0 or 2.Sufficient amounts of this diol are used to provide the final polymer with a sulphonate group content of about 0.1 to 6 wt.%. In a preferred embodiment, a prepolymer is formed in substance with the sulphonate bearing diol, the polyisocyanate and optionally other reactive hydrogen bearing compounds. The prepolymer is then chain extended with water and water soluble polyamines. This second stage may take place in water and the polyamines may carry sulphonate groups.

    摘要翻译： 本发明涉及通过使多异氰酸酯与含有磺酸酯基团的二醇反应制备水分散性聚氨酯的方法。 磺酸二醇具有以下通式：其中A和B可以相同或不同，各自表示含有1至6个碳原子的二价脂族烃基，R表示氢，含有1至6个碳原子的脂族烃基 4个碳原子或苯基，X（+）表示可以被取代的N和M的碱金属阳离子或铵基团，可以是相同或不同的，每个表示0和30之间的整数，O和P， 代表0或1，Q表示0或2的整数。

    Aromatic diisocyanates containing N,N-disubstituted sulfonamide groups and processes for their production
    9.
    发明授权
    Aromatic diisocyanates containing N,N-disubstituted sulfonamide groups and processes for their production 失效
    含有N，N-二取代磺酰胺基团的芳族二异氰酸酯及其制备方法

    公开(公告)号：US4496491A

    公开(公告)日：1985-01-29

    申请号：US401036

    申请日：1982-07-22

    申请人： Richard Kopp ,  Gerhard Grogler ,  Helmut Reiff ,  Dieter Dieterich

    发明人： Richard Kopp ,  Gerhard Grogler ,  Helmut Reiff ,  Dieter Dieterich

    IPC分类号： C08G18/00 ,  C07C67/00 ,  C07C241/00 ,  C07C265/14 ,  C07D295/26 ,  C08G18/77 ,  C07C119/048

    CPC分类号： C07D295/26 ,  C08G18/775

    摘要： Diisocyanates corresponding to the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 (an isocyanate-containing radical) are as defined herein are made by several processes. These diisocyanates may be made by phosgenating the diamine in which the diisocyanate is based. They may also be produced by treating the bis-urethane of the tertiary alcohol corresponding to the diisocyanate with phosgene. Such diisocyanates may also be made by treating a specific type of bis-urea with hydrogen chloride. The diisocyanates corresponding to the above-given formula are particularly useful in the production of polyurethanes having good flame-proof and mechanical properties.

    摘要翻译： 其中R 1，R 2，R 3，R 4，R 5和R 6（含异氰酸酯的基团）如本文所定义的式“IMAGE”的二异氰酸酯通过几种方法制备。 这些二异氰酸酯可以通过使二异氰酸酯所基于的二胺光气化而制成。 它们也可以通过用光气处理对应于二异氰酸酯的叔醇的双 - 氨基甲酸酯来制备。 这种二异氰酸酯也可以通过用氯化氢处理特定类型的双脲来制备。 对应于上述给定配方的二异氰酸酯特别可用于生产具有良好的阻燃和机械性能的聚氨酯。

    Process for the production of plastic based on polyisocyanates
    10.
    发明授权
    Process for the production of plastic based on polyisocyanates 失效
    基于多异氰酸酯生产塑料的方法

    公开(公告)号：US4440901A

    公开(公告)日：1984-04-03

    申请号：US509910

    申请日：1983-07-01

    申请人： Helmut Reiff ,  Dieter Dieterich

    发明人： Helmut Reiff ,  Dieter Dieterich

    IPC分类号： C08G18/00 ,  C08G18/10 ,  C08G18/34 ,  C08G18/42 ,  C08G18/48 ,  C08G18/65 ,  C08G18/73 ,  C08G18/75

    CPC分类号： C08G18/75 ,  C08G18/10 ,  C08G18/34 ,  C08G18/4263 ,  C08G18/4887

    摘要： The present invention is directed to a process for the production of plastics based on an isocyanate-polyaddition product by(1) forming an isocyanate group-containing prepolymer from(a) a compound which has a molecular weight of from 146 to about 10,000, is substantially free from hydroxyl groups, contains at least two terminal carboxyl groups and optionally contains ether and/or ester groups,(b) excess quantities of an organic nonaromatic polyisocyanate which has at least one cyclohexane ring and exclusively contains aliphatically- and/or cycloaliphatically-bound isocyanate groups and(c) up to 10 equivalent percent, based on the isocyanate-reactive groups in component (a), of a compound which is monofunctional for the purposes of the isocyanate-addition reaction and,(2) reacting the product of step (1) with(d) a chain-lengthening agent such as water, a polyamine containing at least two primary and/or secondary amino groups or hydrazine or a derivative thereof containing at least two primary and/or secondary amino groups.

    摘要翻译： 本发明涉及通过（1）从（a）分子量为146至约10,000的化合物形成含异氰酸酯基的预聚物来生产基于异氰酸酯加聚产物的塑料的方法，是 基本上不含羟基，含有至少两个末端羧基并且任选地含有醚和/或酯基，（b）过量的有机非芳族聚异氰酸酯，其具有至少一个环己烷环并且仅含有脂族和/或脂环 结合异氰酸酯基团和（c）基于组分（a）中异氰酸酯反应性基团的异氰酸酯加成反应中单官能化合物的至多10当量％，和（2）使 步骤（1）与（d）链增长剂如水，含有至少两个伯和/或仲氨基的多胺或肼或其衍生物至少包含 两个伯和/或仲氨基。