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27 条记录 (耗时 0.031 秒)

    Process for reconcentrating overspray from one-component coating compositions
    21.
    发明授权
    Process for reconcentrating overspray from one-component coating compositions 失效
    从单组分涂料组合物重新浓缩过量喷涂的方法

    公开(公告)号：US5490939A

    公开(公告)日：1996-02-13

    申请号：US393646

    申请日：1995-02-24

    申请人： Markus Gerigk ,  Jochen Bruck ,  Wieland Hovestadt

    发明人： Markus Gerigk ,  Jochen Bruck ,  Wieland Hovestadt

    IPC分类号： B01D61/02 ,  B01D61/14 ,  B01D61/58 ,  B05B15/04 ,  B05B15/12 ,  B29B17/02 ,  C02F1/44 ,  C08J11/00 ,  C08J11/04 ,  C09D5/00 ,  B01D61/00

    CPC分类号： B01D61/027 ,  B01D61/022 ,  B01D61/025 ,  B01D61/145 ,  B01D61/58 ,  B05B15/127 ,  C02F9/00 ,  C08J11/00 ,  B01D2317/022 ,  B01D2317/025 ,  B01D2317/08 ,  B05B15/1266 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F2103/14 ,  Y02P70/36

    摘要： The present invention relates to a multi-stage membrane filtration process for reconcentrating the overspray from a one-component, aqueous coating composition containing high molecular weight components having a weight average molecular weight of at least 2000 and at least 5% by weight, based on the total weight of the organic components of the coating composition, of a low molecular weight component having a weight average molecular weight of less than 2000, that has been diluted with spray booth water from spray booths having wet flushing to form a booth/water overspray mixture bya) preconcentrating the booth water/overspray mixture in an ultrafiltration unit to obtain a first retentate containing high molecular weight components and a first permeant containing water and at least a portion of the low molecular weight components,b) treating said first permeant and the third permeant obtained in step c) below in a reverse osmosis unit to obtain a second permeant containing essentially pure water for recycle as booth water and a retentate containing low molecular weight components,c) treating said first and second retentates in a nanofiltration unit to obtain a third permeant containing water and a minor portion of low molecular weight components and a third retentate which largely corresponds in composition and concentration to said one-component, aqueous coating composition.

    摘要翻译： 本发明涉及一种多级膜过滤方法，其用于将单重组分水性涂料组合物重新浓缩过喷射，该组合物含有基于重均分子量至少为2000和至少5重量％的高分子量组分 重均分子量小于2000的低分子量组分的涂料组合物的有机组分的总重量，其已经用喷淋室用喷雾室水进行了湿式冲洗，以形成一个展位/水过喷 混合物通过a）在超滤单元中预浓缩展位水/超喷混合物以获得含有高分子量组分的第一渗余物和含有水和至少一部分低分子量组分的第一渗透物，b）处理所述第一渗透物和 在步骤c）中获得的第三渗透剂在反渗透单元中以获得含有主要的第二渗透物 y纯水作为展示水和含有低分子量组分的保留物，c）在纳米过滤单元中处理所述第一和第二滞留物以获得含有水和少量低分子量组分的第三渗透剂和第三渗余物，其中 在大多数组成和浓度上对应于所述单组分水性涂料组合物。

    Aqueous secondary dispersions
    23.
    发明授权
    Aqueous secondary dispersions 有权
    水性二次分散体

    公开(公告)号：US06962953B2

    公开(公告)日：2005-11-08

    申请号：US10174034

    申请日：2002-06-18

    申请人： Joachim Probst ,  Martin Melchiors ,  Wieland Hovestadt ,  Michael Sonntag ,  Burkhard Köhler ,  Bernhard Jansen

    发明人： Joachim Probst ,  Martin Melchiors ,  Wieland Hovestadt ,  Michael Sonntag ,  Burkhard Köhler ,  Bernhard Jansen

    IPC分类号： C08L53/00 ,  C09D153/00 ,  C08F2/00 ,  C08L33/14 ,  C08L47/10

    CPC分类号： C08L53/00 ,  C09D153/00 ,  Y10T428/31855 ,  C08L2666/04 ,  C08L2666/02

    摘要： The present invention relates to heat and storage stable vinyl polymer polyol secondary dispersions containing A) at least one vinyl polymer resin having functional groups selected from hydroxyl, carboxyl and/or sulfonic acid groups and dispersed in a water/solvent mixture in the presence of a neutralizing agent, and B) at least one amphiphilic polymer built up from a hydrophobic and a hydrophilic segment. The invention also relates to a process for the preparation of the vinyl polymer polyol secondary dispersions by preparing vinyl polymer resin A) by polymerizing a mixture of ethylenically unsaturated monomers a) in the presence of an initiator b) in a water/solvent mixture and adding at least one amphiphilic polymer B), then at least partly neutralizing and dispersing the resulting product, optionally after the addition of a further amount of water.

    摘要翻译： 本发明涉及储存稳定的乙烯基聚合物多元醇二次分散体，其包含A）至少一种具有选自羟基，羧基和/或磺酸基团的官能团的乙烯基聚合物树脂，并分散在水/溶剂混合物中 中和剂，和B）由疏水和亲水链段构成的至少一种两亲性聚合物。 本发明还涉及通过制备乙烯基聚合物多元醇二次分散体来制备乙烯基聚合物多元醇二次分散体的方法，其通过在引发剂b）存在下在水/溶剂混合物中聚合烯键式不饱和单体a）的混合物并加入 至少一种两亲聚合物B），然后至少部分地中和和分散所得产物，任选地在加入另外量的水之后。

    Hydroxy-functional polyurethane carbonates, a process for their preparation and their use as binders
    25.
    发明授权
    Hydroxy-functional polyurethane carbonates, a process for their preparation and their use as binders 失效
    羟基官能聚氨酯碳酸酯，其制备方法及其作为粘合剂的用途

    公开(公告)号：US06534620B1

    公开(公告)日：2003-03-18

    申请号：US08841209

    申请日：1997-04-29

    申请人： Wieland Hovestadt ,  Martin Melchiors ,  Hans-Joachim Scholl

    发明人： Wieland Hovestadt ,  Martin Melchiors ,  Hans-Joachim Scholl

    IPC分类号： C08G1844

    CPC分类号： C08G64/42 ,  C08G18/44 ,  C08G18/6415 ,  C08G71/04

    摘要： The present invention relates to a process for preparing hydroxy-functional polyurethane carbonates by reacting a) a dihydroxy- or higher hydroxy-functional polymer having a number average molecular weight of 500 to 100,000 and containing aliphatic carbonate groups and optionally ester groups with b) compounds containing at least one primary or secondary amino group and at least one hydroxy group to form urethane groups, wherein components a) and b) are present in amounts which correspond to a molar ratio of carbonate and ester groups of component a) to primary and secondary amino groups of component b) of greater than 1:1 to 20:1. The present invention also relates to the hydroxy-functional polyurethane carbonates obtained by this process and to their use as a binder component in polyurethane compositions, especially coating compositions.

    摘要翻译： 本发明涉及通过使数均分子量为500〜100,000的二羟基或更高级的羟基官能的聚合物和任选的酯基与含有脂肪族碳酸酯基团和任选的酯基的反应制备羟基官能聚氨酯碳酸酯的方法， 至少一个伯或仲氨基和至少一个羟基以形成氨基甲酸酯基，其中组分a）和b）以对应于组分a）的碳酸酯和酯基与伯和仲氨基的摩尔比的量存在 的组分b）大于1：1至20：1。 本发明还涉及通过该方法获得的羟基官能聚氨酯碳酸酯和它们在聚氨酯组合物，特别是涂料组合物中作为粘合剂组分的用途。