Diamines and a process for their production
    4.
    发明授权
    Diamines and a process for their production 失效
    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

    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。

    Diisocyanates and processes for their production and use
    9.
    发明授权
    Diisocyanates and processes for their production and use 失效
    二异氰酸酯及其生产和使用的方法

    公开(公告)号:US5552507A

    公开(公告)日:1996-09-03

    申请号:US434254

    申请日:1995-05-03

    CPC分类号: C08G18/771 C07C265/14

    摘要: Diisocyanates containing carboxylic acid ester groups corresponding to the formula: ##STR1## in which R and R.sup.1 represent specified groups are produced by phosgenation of the corresponding diamines, optionally present in the form of an ammonium salt. These diisocyanates are useful as starting materials in the production of plastics containing urethane and/or urea groups and as starting materials for the production of intermediate products used for the production of such plastics.

    摘要翻译: 对应于下式的对应于式(I)的羧酸酯基的二异氰酸酯:其中R和R 1代表特定基团是通过相应的二胺的光气化产生的,任选以铵盐的形式存在。 这些二异氰酸酯可用作生产含有氨基甲酸酯和/或脲基团的塑料的起始原料,并且用作生产用于生产这种塑料的中间产物的起始材料。