Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    22.
    发明授权
    Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups 失效
    用于制备含有碳二亚胺和/或脲酮亚胺基团的液体,储存稳定的有机异氰酸酯的方法

    公开(公告)号:US07825276B2

    公开(公告)日:2010-11-02

    申请号:US11648998

    申请日:2007-01-03

    IPC分类号: C07C251/00

    摘要: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the preparation of blends with further isocyanates and for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.

    摘要翻译: 本发明涉及一种制备含有低碳含量的碳二亚胺(CD)和/或脲酮亚胺(UI)基团的液体,储存稳定的异氰酸酯混合物的方法,该方法可获得的异氰酸酯混合物及其用于制备 与另外的异氰酸酯共混并用于制备含有异氰酸酯基团的预聚物和聚氨酯塑料,优选聚氨酯泡沫塑料。

    Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    27.
    发明授权
    Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups 失效
    用于制备含有碳二亚胺和/或脲酮亚胺基团的液体,储存稳定的有机异氰酸酯的方法

    公开(公告)号:US07714148B2

    公开(公告)日:2010-05-11

    申请号:US11649001

    申请日:2007-01-03

    IPC分类号: C07D229/00

    CPC分类号: C08G18/025 C08G18/797

    摘要: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the preparation of blends of these isocyanates with additional isocyanate components and to a process for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.

    摘要翻译: 本发明涉及一种制备低色数液体,储存稳定的异氰酸酯混合物的方法,该方法含有碳二亚胺(CD)和/或脲酮亚胺(UI)基团,可通过该方法获得的异氰酸酯混合物, 这些异氰酸酯与另外的异氰酸酯组分的共混物的制备以及制备含有异氰酸酯基团的预聚物和聚氨酯塑料,优选聚氨酯泡沫体的方法。

    Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups
    28.
    发明申请
    Process for the preparation of liquid, storage-stable organic isocyanates containing carbodiimide and/or uretoneimine groups 失效
    用于制备含有碳二亚胺和/或脲酮亚胺基团的液体,储存稳定的有机异氰酸酯的方法

    公开(公告)号:US20070155937A1

    公开(公告)日:2007-07-05

    申请号:US11648998

    申请日:2007-01-03

    IPC分类号: C08G18/00

    摘要: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the preparation of blends with further isocyanates and for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.

    摘要翻译: 本发明涉及一种制备含有低碳含量的碳二亚胺(CD)和/或脲酮亚胺(UI)基团的液体,储存稳定的异氰酸酯混合物的方法,该方法可获得的异氰酸酯混合物及其用于制备 与另外的异氰酸酯共混并用于制备含有异氰酸酯基团的预聚物和聚氨酯塑料,优选聚氨酯泡沫塑料。

    Process for the production of polyisocyanates of the diphenylmethane series by phosgenation of non-neutralized polyamine of the diphenylmethane series
    30.
    发明授权
    Process for the production of polyisocyanates of the diphenylmethane series by phosgenation of non-neutralized polyamine of the diphenylmethane series 失效
    通过二苯基甲烷系列的非中和多胺的光气化生产二苯基甲烷系列的多异氰酸酯的方法

    公开(公告)号:US07041776B2

    公开(公告)日:2006-05-09

    申请号:US10672440

    申请日:2003-09-26

    IPC分类号: C08G12/06

    摘要: The invention relates to a method of producing polyisocyanates of the diphenylmethane series including the steps of a) reacting aniline and formaldehyde in the presence of HCl to provide a product mixture containing polyamines of the diphenylmethane series, HCl, aniline and water; b) removing excess aniline and water by distillation to provide a product mixture comprising polyamines of the diphenylmethane series, HCl, no more than 10 wt. % aniline based on the polyamines, and no more than 5 wt. % water based on the polyamines; and c) phosgenating the product mixture in (b).

    摘要翻译: 本发明涉及一种生产二苯基甲烷系列的多异氰酸酯的方法,包括以下步骤:a)在HCl存在下使苯胺和甲醛反应,得到含有二苯基甲烷系列,HCl,苯胺和水的多胺的产物混合物; b)通过蒸馏除去过量的苯胺和水,以提供包含二苯基甲烷系列的多胺(HCl)的产物混合物,不超过10wt。 基于多胺的%苯胺,不超过5重量% 基于多胺的%水; 和c)使(b)中的产物混合物光气化。