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    Preparation of in situ-reticulated flexible polyurethane foams
    13.
    发明授权
    Preparation of in situ-reticulated flexible polyurethane foams 失效

    公开(公告)号：US06638986B2

    公开(公告)日：2003-10-28

    申请号：US10047639

    申请日：2002-01-15

    申请人： Peter Falke ,  Heinz-Dieter Lutter ,  Michael J. Pcolinski

    发明人： Peter Falke ,  Heinz-Dieter Lutter ,  Michael J. Pcolinski

    IPC分类号： C08G1814

    CPC分类号： C08G18/4841 ,  C08G18/4808 ,  C08G18/7607 ,  C08G2101/0008 ,  C08G2101/0058 ,  C08G2101/0083 ,  C08G2340/00

    摘要： Reticulated flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and further assistants and additives (f), by a process in which the polyetherol mixture (b) comprises b1) at least one difunctional or polyfunctional polyetherol having an OH number of from 20 to 150 mg KOH/g, based on propylene oxide and/or butylene oxide and ethylene oxide and having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, (b1.1) and, if required, further difunctional or polyfunctional polyetherols having an OH number of from 20 to 150 mg KOH/g, based on propylene oxide and/or butylene oxide and ethylene oxide and having an ethylene oxide content of not more than 40% by weight, based on the total amount of alkylene oxide used, which have a content of primary OH groups of more than 40%, (b1.2), with total amounts of the component (b1) of at least 70% by weight, based on the total weight of the component (b), (b1.1) being present in amounts of at least 50% by weight, based on the total weight of the component (b), and b2) at least one difunctional or polyfunctional polyetherol based on propylene oxide and/or butylene oxide and having an OH number of more than 25 mg KOH/g, in amounts of not more than 30% by weight, based on the total weight of the component (b), and silicone stabilizers are used in amounts of from 0.02 to 5% by weight, based on the total weight of the components (b) to f). The reticulated flexible polyurethane foams themselves prepared in this manner are used for upholstery purposes, for cavity filling and as support medium and filter medium.

    Production of polyurethane foams
    14.
    发明授权
    Production of polyurethane foams 失效
    生产聚氨酯泡沫

    公开(公告)号：US6087410A

    公开(公告)日：2000-07-11

    申请号：US154382

    申请日：1998-09-16

    申请人： Peter Falke ,  Inge Rotermund ,  Marita Schuster ,  Steffen Klippert

    发明人： Peter Falke ,  Inge Rotermund ,  Marita Schuster ,  Steffen Klippert

    IPC分类号： C08G18/40 ,  C08G18/65 ,  C08G18/48

    CPC分类号： C08G18/6558 ,  C08G18/4072 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

    摘要： Polyurethane foams are produced by reactinga) organic and/or modified organic diisocyanates and/or polyisocyanates withb) at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms,c) at least one compound containing from three to eight, preferably from three to six, reactive hydrogen atoms andd) low molecular weight chain extenders and/or crosslinkers containing at least two reactive hydrogen atomsin the presence ofe) blowing agentsf) catalysts and, if desired,g) further auxiliaries and additives,wherein (c) are ethylene oxide-rich adducts having an ethylene oxide content of more than 50% by weight and an OH number of from 200 to 800 mg KOH/g and (d) are polyfunctional chain extenders and/or crosslinkers having an OH number of more than 700 mg KOH/g.The polyurethane foam produced by this process can be used as upholstery material.

    摘要翻译： 聚氨酯泡沫是通过使a）有机和/或改性的有机二异氰酸酯和/或多异氰酸酯与b）至少一种含有至少两个反应性氢原子的相对高分子量的化合物反应来制备的，c）至少一种含有3-8个 优选3至6个反应性氢原子和d）在e）发泡剂存在下含有至少两个反应性氢原子的低分子量增链剂和/或交联剂f）催化剂，如果需要，g）其它助剂和添加剂 ，其中（c）是具有大于50重量％的环氧乙烷含量和200-800mg KOH / g的OH值的环氧乙烷富集的加合物，和（d）是具有多官能的增链剂和/或交联剂， OH数超过700 mg KOH / g。 通过该方法生产的聚氨酯泡沫可用作装饰材料。

    Preparation of flexible polyurethane foams
    15.
    发明授权
    Preparation of flexible polyurethane foams 失效
    柔性聚氨酯泡沫的制备

    公开(公告)号：US06583192B2

    公开(公告)日：2003-06-24

    申请号：US10046803

    申请日：2002-01-15

    申请人： Peter Falke ,  Heinz-Jürgen Schröder ,  Lothar Baum

    发明人： Peter Falke ,  Heinz-Jürgen Schröder ,  Lothar Baum

    IPC分类号： C08G1814

    CPC分类号： C08G18/7657 ,  C08G18/4804 ,  C08G2101/0008 ,  C08G2101/0058 ,  C08G2101/0083 ,  C08G2350/00

    摘要： Flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having hydrogen atoms reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if required, further assistants and additives (f), by a process in which the polyetherol mixture (b) consists of b1) at least one polyetherol which is at least difunctional, has an OH number of from 20 to 100 mg KOH/g and is based on propylene oxide and/or butylene oxide and ethylene oxide, having an ethylene oxide content of more than 40% by weight, based on the total amount of alkylene oxide used, and, if required, further polyetherols which are at least difunctional, are based on propylene oxide and/or butylene oxide and ethylene oxide and have an OH number of from 20 to 160 mg KOH/g and b2) at least one difunctional to hexafunctional polyetherol based on propylene oxide and/or butylene oxide and having an OH number of less than 800 mg KOH/g and the foams are prepared with indices of less than 110, the amount by weight of (b1) being greater than that of (b2). The flexible polyurethane foams prepared by this process are used for upholstery purposes, and insulation purposes, in vehicle construction and in the medical and hygiene sector.

    摘要翻译： 通过使有机和/或改性的有机多异氰酸酯（a）与聚乙烯醇混合物（b）反应制备柔性聚氨酯泡沫，并且如果需要，在水和/或其它的存在下，具有对异氰酸酯具有反应性的氢原子的其它化合物（c） 发泡剂（d），催化剂（e）以及如果需要的话还有助剂和添加剂（f），其中聚醚醚混合物（b）由以下组分组成的方法组成：b）至少一种至少具有双官能团的聚醚，其具有OH 数量为20至100mg KOH / g，基于环氧丙烷和/或环氧丁烷和环氧乙烷，环氧乙烷含量大于40重量％，基于所用的环氧烷的总量， 如果需要，至少二官能的另外的聚己二酸基于环氧丙烷和/或环氧丁烷和环氧乙烷并且具有20至160mg KOH / g的OH数和b2）至少一种基于丙烯的双官能至六官能聚醚 氧化物和/或丁烯 氧化物，OH值小于800mg KOH / g，并且以小于110的指数制备泡沫，（b1）的重量比（b2）的重量大。 通过该方法制备的柔性聚氨酯泡沫体用于装饰目的，绝缘目的，车辆结构和医疗卫生领域。