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11. 发明授权

US06486346B1 Process for the preparation of durene diisocyanate 失效
标题翻译：杜烯二异氰酸酯的制备方法
公开(公告)号：US06486346B1
公开(公告)日：2002-11-26
申请号：US09460953
申请日：1999-12-14
申请人： Peter Heitkämper , Klaus Jost , Stefan Penninger
发明人： Peter Heitkämper , Klaus Jost , Stefan Penninger
IPC分类号： C07C27300
CPC分类号： C07C263/10 , C07C265/14
摘要： Durene diisocyanate is prepared by reacting durene with nitric acid in sulfuric acid, catalytic hydrogenation of the dinitrodurene that is formed, and phosgenation of the resultant durene diamine in a conventional manner. The intermediate products dinitrodurene and durene diamine do not have to be worked up in a complicated manner as solid products, but can be worked up in dissolved form. The intermediate products dinitrodurene and durene diamine do not have to be isolated and purified in a complicated manner. but can be processed directly after preparation. Another advantage of this process is that only a single organic solvent need be used for the overall preparation process. Separation and re-use of spent acid in the conversion of durene with nitric acid also renders the process of the present invention significantly less environmentally harmful than the known processes of the prior art.
摘要翻译：杜烯二异氰酸酯是通过使杜烯与硝酸在硫酸中反应制得的，所形成的二硝基还原剂的催化氢化和所得的杜烯二胺以常规方式进行光气化。中间产物二硝基呋喃和杜烯二胺不需要以固体产物的复杂方式处理，而可以以溶解的形式进行处理。中间产物二硝基杜烯和杜烯二胺不需要以复杂的方式分离和纯化。但可以在准备后直接加工。该方法的另一个优点是在整个制备过程中仅需要使用单一的有机溶剂。在杜烯与硝酸的转化中，废酸的分离和再利用也使得本发明的方法比现有技术的已知方法显着降低了对环境的危害。

12. 发明授权

US4786751A Dissocyanates, diisocyanate mixtures and a process for their production 失效
标题翻译：二异氰酸酯，二异氰酸酯混合物及其生产方法
公开(公告)号：US4786751A
公开(公告)日：1988-11-22
申请号：US797072
申请日：1985-11-12
申请人： Hartmut Knofel , Michael Brockelt , Stefan Penninger , Herbert Stutz
发明人： Hartmut Knofel , Michael Brockelt , Stefan Penninger , Herbert Stutz
IPC分类号： C08G18/00 , C07C67/00 , C07C241/00 , C07C265/04 , C07C265/10 , C07C265/12 , C07C265/14 , C08G18/10 , C08G18/72 , C08G18/74 , C08G18/76 , C09D175/00 , C07C71/00
CPC分类号： C07C265/12 , C08G18/74
摘要： Diisocyanates and isomeric mixtures of diisocyanates corresponding to the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3, m and n are as defined herein are made by phosgenating diamines corresponding to the formula ##STR2## in which R.sub.1, R.sub.2, R.sub.3, m and n are as defined herein at a temperature of from -20.degree. to 250.degree. C. These diisocyanates are particularly useful as starting materials for the production of polyurethanes by the isocyanate polyaddition process.
摘要翻译： R 1，R 2，R 3，m和n如本文所定义的对应于式“IMAGE”的二异氰酸酯的二异氰酸酯和异构体混合物通过对应于式“IMAGE”的二胺光气化制备，其中R 1，R 2，R 3，m和 n在-20℃至250℃的温度下定义。这些二异氰酸酯特别可用作通过异氰酸酯加聚方法生产聚氨酯的原料。

13. 发明授权

US4720582A Diamines and a process for their production 失效
标题翻译：二胺及其生产工艺
公开(公告)号：US4720582A
公开(公告)日：1988-01-19
申请号：US523211
申请日：1983-08-15
申请人： Hartmut Knofel , Michael Brockelt , Stefan Penninger
发明人： Hartmut Knofel , Michael Brockelt , Stefan Penninger
IPC分类号： C07B61/00 , B01J23/00 , C07C67/00 , C07C209/00 , C07C209/36 , C07C209/72 , C07C211/49 , C08G18/32 , C07C87/52
CPC分类号： C08G18/3234
摘要： Diamines corresponding to the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 may be identical or different and represent hydrogen or straight- or branched-chain C.sub.1 -C.sub.12 alkyl groups, provided that two of the radicals,R.sup.1, R.sup.2 and R.sup.3, represent hydrogen, m and n each represent 0 or 1, provided that m+n=1; where m or n=0, the free valence is saturated by hydrogen, optionally in the form of isomeric mixtures, and optionally containing up to 35%, by weight, of the corresponding perhydrogenated diamines, and up to 10%, by weight, of the corresponding unhydrogenated aromatic diamines.Also, a process for preparing these diamines by catalytically-hydrogenating the corresponding aromatic diamines with 3 moles of hydrogen per mole of diamine, or catalytically-hydrogenating the corresponding dinitro compounds with 9 moles of hydrogen per mole of dinitro compound.
摘要翻译：对应于通式“IMAGE”的二胺，其中R 1，R 2和R 3可以相同或不同，表示氢或直链或支链C 1 -C 12烷基，条件是基团R 1，R 2和R 3中的两个表示氢，m和n各自表示0或1，条件是m + n = 1; 其中m或n = 0，任选地以异构混合物形式的氢饱和，并且任选地含有至多35重量％的相应的过氢化二胺，以及至多10重量％的相应的未氢化芳族二胺。另外，通过用相对于每摩尔二胺的3摩尔氢催化氢化相应的芳族二胺或每摩尔二硝基化合物以9摩尔氢催化氢化相应的二硝基化合物来制备这些二胺的方法。

14. 发明授权

US4593117A Process for the preparation of N- and O-substituted diurethanes and/or polyurethanes 失效
标题翻译：用于制备N-和O-取代的二氨基甲酸酯和/或聚氨酯的方法
公开(公告)号：US4593117A
公开(公告)日：1986-06-03
申请号：US678430
申请日：1984-12-05
申请人： Hartmut Knofel , Stefan Penninger , Gunther Hammen , Peter Heitkamper
发明人： Hartmut Knofel , Stefan Penninger , Gunther Hammen , Peter Heitkamper
IPC分类号： C07C269/04 , C07C67/00 , C07C209/00 , C07C209/62 , C07C211/44 , C07C239/00 , C07C271/12 , C07C271/24 , C07C271/26 , C07C271/28 , C07C271/44 , C08G18/70 , C07C125/073 , C07C125/077
CPC分类号： C08G18/701
摘要： Low molecular weight N- and O-substituted diurethanes and/or polyurethanes are prepared by reacting a diamine and/or polyamine containing a primary amino group with an N-aryl-0-alkyl urethane in the presence of at least one high boiling alcohol. This reaction may be carried out at a temperature of from 180.degree. to 350.degree. C. and a pressure of approximately 0.1 to 1,500 mbar. The arylamine corresponding to the N-ary-0-alkyl urethane which forms during this reaction is continuously removed from the reaction mixture.
摘要翻译：在至少一种高沸点醇的存在下，使含有伯氨基的二胺和/或多胺与N-芳基-O-烷基氨基甲酸酯反应制备低分子量N-和O-取代的二氨基甲酸酯和/或聚氨酯。该反应可以在180℃至350℃的温度和约0.1至1,500毫巴的压力下进行。对应于在该反应期间形成的N-芳基 - 烷基氨基甲酸酯的芳基胺从反应混合物中连续除去。

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