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54 条记录 (耗时 0.018 秒)

    ANIONIC CELLULOSE NITRATE DERIVATIVES AND AQUEOUS DISPERSIONS THEREOF
    42.
    发明申请
    ANIONIC CELLULOSE NITRATE DERIVATIVES AND AQUEOUS DISPERSIONS THEREOF 失效
    阴离子纤维素硝酸盐衍生物及其水性分散体

    公开(公告)号：US20060117998A1

    公开(公告)日：2006-06-08

    申请号：US11290193

    申请日：2005-11-30

    申请人： Carsten Huttermann ,  Thomas Wagner ,  Klaus Nachtkamp

    发明人： Carsten Huttermann ,  Thomas Wagner ,  Klaus Nachtkamp

    IPC分类号： C08L1/00

    CPC分类号： C08J3/05 ,  C08B7/00 ,  C08J2301/18 ,  C08L1/20

    摘要： An anionic cellulose nitrate derivative is described, which has: (i) a degree of acid group substitution (DS (acid)) in the range of 0.01 to 0.2; and (ii) a nitrogen content of 10.7 wt. % to 12.3 wt. %, based on the weight of cellulose nitrate derivative. The anionic cellulose nitrate derivative is prepared by a process which includes esterifying cellulose nitrate feed material with at least one dicarboxylic acid anhydride (e.g., maleic anhydride). Aqueous dispersions according to the present invention include: (a) at least on anionic cellulose nitrate derivative according to the present invention; and (b) at least one base.

    摘要翻译： 描述了一种阴离子硝酸纤维素衍生物，其具有：（i）酸基置换度（DS（酸））在0.01至0.2的范围内; 和（ii）10.7重量％的氮含量。 ％〜12.3重量％ ％，基于硝酸纤维素衍生物的重量。 通过包括用至少一种二羧酸酐（例如马来酸酐）将硝酸纤维素原料酯化的方法制备阴离子硝酸纤维素衍生物。 根据本发明的水分散体包括：（a）至少一种根据本发明的阴离子硝酸纤维素衍生物; 和（b）至少一个碱基。

    Process for the preparation of O-silylated hydroxyl compounds and their use for the preparation of isocyanates containing ester groups
    49.
    发明授权
    Process for the preparation of O-silylated hydroxyl compounds and their use for the preparation of isocyanates containing ester groups 失效
    制备O-硅氧烷化合物的方法及其用于制备含有酯基团的异氰酸酯的方法

    公开(公告)号：US5142081A

    公开(公告)日：1992-08-25

    申请号：US596173

    申请日：1990-10-10

    申请人： Lutz Schmalstieg ,  Josef Pedain ,  Klaus Nachtkamp

    发明人： Lutz Schmalstieg ,  Josef Pedain ,  Klaus Nachtkamp

    IPC分类号： C07F7/18

    CPC分类号： C07F7/188

    摘要： This present invention relates to a process for the preparation of O-silylated aliphatic hydroxyl, compounds by the reaction of aliphatic hydroxyl compounds with triorganochlorosilanes and removal of the resulting gaseous hydrogen chloride from the reaction mixture, characterized in that the reaction is carried out in the presence of phase transfer catalysts in the absence of solvent.The invention also relates to the use of the O-silylated hydroxyl compounds obtained by this process as starting materials for the preparation of isocyanates containing ester groups by a reaction with isocyanato carboxylic acid chlorides.

    摘要翻译： 本发明涉及通过脂族羟基化合物与三有机氯硅烷的反应和从反应混合物中除去所得到的气态氯化氢来制备O-甲硅烷基化的脂族羟基化合物的方法，其特征在于反应在 在不存在溶剂的情况下存在相转移催化剂。 本发明还涉及通过该方法获得的O-甲硅烷基化羟基化合物作为通过与异氰酸根合羧酸氯化物反应制备含酯基的异氰酸酯的起始原料的用途。

    Process for the production of aqueous dispersions of polyurethane polyureas, the dispersions obtainable by this process and their use as coating compositions
    50.
    发明授权
    Process for the production of aqueous dispersions of polyurethane polyureas, the dispersions obtainable by this process and their use as coating compositions 失效
    用于生产聚氨酯聚脲的水性分散体的方法，可通过该方法获得的分散体及其作为涂料组合物的用途

    公开(公告)号：US4745151A

    公开(公告)日：1988-05-17

    申请号：US38256

    申请日：1987-04-14

    申请人： Klaus Noll ,  Jurgen Mosbach ,  Josef Pedain ,  Klaus Nachtkamp ,  Jurgen Schwindt

    发明人： Klaus Noll ,  Jurgen Mosbach ,  Josef Pedain ,  Klaus Nachtkamp ,  Jurgen Schwindt

    IPC分类号： C08G18/08 ,  C08G18/10 ,  C08G18/32 ,  C08G18/66 ,  C08G18/75 ,  C08G18/76 ,  C09D175/00 ,  C08L75/04

    CPC分类号： C08G18/765 ,  C08G18/0823 ,  C08G18/0842 ,  C08G18/10 ,  C08G18/6611 ,  C08G18/755

    摘要： The present invention is directed to a process for the production of aqueous polyurethane-polyurea dispersions by reacting NCO-prepolymers having an average NCO-functionality of 2 to 2.3 and an average molecular weight of about 700 to about 5000 with organic polyamines having an average amine functionality of 2.05 to about 3 and an average molecular weight of 60 to about 2000 containing primary and/or secondary amino groups at an NCO/NH ratio about 1.05:1 to about 7:1 in the presence of a water-miscible, weakly polar solvent inert to isocyanate groups and having a boiling point at normal pressure below 100.degree. C., converting the resulting solution of the reaction products into an aqueous dispersion by the addition of water and optionally removing the solvent used by distillation, characterized in that the reactants and amounts used are selected such that the resulting reaction products have an NCO-functionality of 2.2 to about 3 and NCO-content of about 0.1 to 5% by weight. The present invention is also directed to the products of this process and their use for the production of coatings.

    摘要翻译： 本发明涉及通过使具有平均NCO官能度为2至2.3且平均分子量为约700至约5000的NCO预聚物与具有平均胺的有机多胺反应制备水性聚氨酯 - 聚脲分散体的方法 官能度为2.05至约3，平均分子量为60至约2000，其含有主要和/或仲氨基，NCO / NH比约为1.05：1至约7：1，在水混溶性弱极性 对异氰酸酯基具有惰性的溶剂，并且在常压下沸点低于100℃，通过加入水将反应产物的所得溶液转化成水分散体，并任选地除去蒸馏使用的溶剂，其特征在于反应物 并且选择使用的量使得所得反应产物的NCO官能度为2.2至约3，NCO含量为约0.1至5重量％。 本发明还涉及该方法的产品及其用于生产涂料的用途。