Isocyanate adducts
    1.
    发明授权
    Isocyanate adducts 有权
    异氰酸酯加合物

    公开(公告)号:US07390867B2

    公开(公告)日:2008-06-24

    申请号:US10735426

    申请日:2003-12-12

    IPC分类号: C08G18/48 C08J9/32

    摘要: The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups and have a crystalline content of less than 10 J/g determined by differential scanning calorimetry in accordance with DIN 51 004 at 20 K/min from room temperature to 250° C. using a nitrogen flow of 3 l/h as carrier gas and an aromatics content reported as carbon atoms in aromatic rings of less than 31% by weight, based on the total weight of the isocyanate adducts.

    摘要翻译: 本发明涉及异氰酸酯加合物,其可以通过使至少一种多异氰酸酯与具有至少两个对异氰酸酯基反应的氢原子的化合物与通过差示扫描量热法测定的结晶含量小于10J / g的化合物反应来制备, DIN 51 004以20K /分钟从室温至250℃,使用3升/小时的氮气流作为载气,芳族环中报道的芳族化合物含量小于31重量%,基于 异氰酸酯加合物的总重量。

    METHOD FOR PRODUCING POLYESTEROLS HAVING A REDUCED REACTIVITY
    2.
    发明申请
    METHOD FOR PRODUCING POLYESTEROLS HAVING A REDUCED REACTIVITY 审中-公开
    生产具有降低反应活性的多糖的方法

    公开(公告)号:US20090227759A1

    公开(公告)日:2009-09-10

    申请号:US12434241

    申请日:2009-05-01

    IPC分类号: C08G18/32

    摘要: Polyesterols having reduced reactivity are prepared by catalytic polycondensation of dicarboxylic acids/dicarboxylic acid derivatives and H-functional substances using tin catalysts by a process wherein the polyesterols are brought into contact with oxygen after the end of the esterification reaction.The polyesterols themselves obtained by this process are used for the preparation of PU.

    摘要翻译: 具有降低的反应性的聚酯通过使用锡催化剂的二羧酸/二羧酸衍生物和H官能物质的催化缩聚来制备,其中酯化反应结束后,聚酯与氧接触。 通过该方法获得的聚酯醇本身用于制备PU。

    Microcellular urea-containing polyurethane elastomer
    3.
    发明授权
    Microcellular urea-containing polyurethane elastomer 失效
    含微孔尿素的聚氨酯弹性体

    公开(公告)号:US6063824A

    公开(公告)日:2000-05-16

    申请号:US91697

    申请日:1998-11-18

    摘要: A microcellular PU elastomer having improved dynamic-mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and also further customary constituents has, after heating at from 100 to 120.degree. C. for from 8 to 24 hours, a melting range of from 130.degree. C. as the minimum lower limit to 230.degree. C. as a minimum upper limit, measured by differential scanning calorimetry (DSC) at a heating rate of 20.degree. C./min, and a urea content of from 14 to 18% by weight.A process is also provided for preparing such a microcellular PU elastomer having improved dynamic mechanical properties. The microcellular PU elastomers can be used for producing damping elements.

    摘要翻译: PCT No.PCT / EP96 / 05639 Sec。 371日期:1998年11月18日 102(e)1998年11月18日日期PCT 1996年12月16日PCT公布。 公开号WO97 / 23534 日期1997年7月3日具有改进的动态力学性能并且基于由4,4'-MDI组成的异氰酸酯组分的微孔PU弹性体以及另外的常规组分在100至120℃下加热8 至20小时,通过差示扫描量热法(DSC)以20℃/分钟的加热速率测量的最小下限为230℃的熔点为最小上限,为最小上限,以及 尿素含量为14至18重量%。 还提供了一种制备这种具有改进的动态力学性能的微孔PU弹性体的方法。 微孔PU弹性体可用于制造阻尼元件。

    High-functionality polyether polyols and preparation thereof
    5.
    发明授权
    High-functionality polyether polyols and preparation thereof 失效
    高功能聚醚多元醇及其制备方法

    公开(公告)号:US07122708B1

    公开(公告)日:2006-10-17

    申请号:US10275148

    申请日:2000-05-10

    摘要: The invention relates to high-functionality polyether polyols of the general formula where each R′1 is an unsubstituted or substituted aliphatic or aromatic radical and each R′2 is an unsubstituted or substituted aliphatic or aromatic radical, H, OH, polyalkyl ether chain or halogen, each X is a polyalkyl ether chain or H, where at least one X is a polyalkyl ether chain, and m is an integer from 0 to 20, where Xm is H when m is 0, and n is an integer from 4 to 12, to processes for preparing such high-functionality polyether polyols and also to the use thereof for preparing polyurethanes and nonionic surfactants.

    摘要翻译: 本发明涉及通式的高官能度聚醚多元醇,其中每个R 1'是未取代或取代的脂族或芳族基团,且每个R'2是未取代的或未取代的 取代的脂族或芳族基团,H,OH,多烷基醚链或卤素,每个X是多烷基醚链或H,其中至少一个X是多烷基醚链,m是0至20的整数,其中Xm是 当m为0,n为4〜12的整数时,制备这种高官能度聚醚多元醇的方法,以及其制备聚氨酯和非离子表面活性剂的用途。

    Method for producing polyesterols having a reduced reactivity
    6.
    发明申请
    Method for producing polyesterols having a reduced reactivity 审中-公开
    制备具有降低的反应性的聚酯的方法

    公开(公告)号:US20060205914A1

    公开(公告)日:2006-09-14

    申请号:US10548482

    申请日:2004-02-24

    IPC分类号: C08G18/42 C07C69/34

    摘要: Polyesterols having reduced reactivity are prepared by catalytic polycondensation of dicarboxylic acids/dicarboxylic acid derivatives and H-functional substances using tin catalysts by a process wherein the polyesterols are brought into contact with oxygen after the end of the esterification reaction. The polyesterols themselves obtained by this process are used for the preparation of PU.

    摘要翻译: 具有降低的反应性的聚酯通过使用锡催化剂的二羧酸/二羧酸衍生物和H官能物质的催化缩聚来制备,其中酯化反应结束后,聚酯与氧接触。 通过该方法获得的聚酯醇本身用于制备PU。

    Prepolymers containing isocyanate groups and a method for the production thereof
    7.
    发明授权
    Prepolymers containing isocyanate groups and a method for the production thereof 有权
    含有异氰酸酯基团的预聚物及其制备方法

    公开(公告)号:US06495652B1

    公开(公告)日:2002-12-17

    申请号:US09673046

    申请日:2000-10-09

    IPC分类号: C08G1876

    摘要: Prepolymers which contain isocyanate groups, have an NCO content of at least 30.0% by weight and can be prepared by reacting an isocyanate mixture consisting predominantly of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates and having a proportion of two-ring isomers of not more than 74% by weight with at least 4-functional polyols or a mixture of polyols having a mean functionality of at least 4, where the polyols or polyol mixtures have a hydroxyl number of from 200 to 1650 mg KOH/g and a number average molecular weight of less than 1100 g/mol. The present invention also provides a process for preparing these prepolymers containing isocyanate groups, provides for their use for producing polyurethanes and provides a process for producing polyurethanes by reacting at least one novel prepolymer containing isocyanate groups, if desired in admixture with further organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of, if desired, blowing agents (c), catalysts (d) and, if desired, further auxiliaries and/or additives (e).

    摘要翻译: 含有异氰酸酯基的预聚物的NCO含量至少为30.0重量%,可以通过使主要由二苯基甲烷二异氰酸酯和聚苯基聚亚甲基多异氰酸酯组成的异氰酸酯混合物与二苯基聚亚甲基多异氰酸酯的比例为不超过74%的双环异构体比例 重量与至少4-官能多元醇或平均官能度至少为4的多元醇的混合物,其中多元醇或多元醇混合物的羟值为200至1650mg KOH / g,数均分子量小于 1100g / mol。 本发明还提供了制备这些含有异氰酸酯基团的预聚物的方法,提供了它们用于生产聚氨酯的方法,并且提供了通过使至少一种含有异氰酸酯基团的新型预聚物(如果需要)与另外的有机和/或 如果需要,发泡剂(c),催化剂(d)和(如果需要的话)其它助剂和/或添加剂(e)的存在下,改性有机异氰酸酯(a),具有至少两个反应性氢原子的化合物(b) )。

    Microcellular polyurethane elastomer containing urea groups
    8.
    发明授权
    Microcellular polyurethane elastomer containing urea groups 失效
    含有尿素基团的微孔聚氨酯弹性体

    公开(公告)号:US6037383A

    公开(公告)日:2000-03-14

    申请号:US91638

    申请日:1998-10-07

    摘要: A microcellular PU elastomer having improved dynamic mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and further customary constituents has a physicochemical structure which, in the gel permeation chromatograph (GPC) of a solution of the microcellular polyurethane elastomer prepared at 90.degree. C. in N,N-dimethylformamide containing 1 percent of di-n-butylamine measured against polymethyl methacrylate (PMMA) as standard, displays a signal occurring in addition to low molecular weight main signal and comprising one or more peaks at an (apparent) molar mass of greater than 250,000 g/mol which becomes smaller or disappears on addition of lithium chloride to this solution, and a urea content of from 14 to 18% by weight.A process is also provided for preparing such a microcellular PU elastomer having improved dynamic mechanical properties. The microcellular PU elastomers can be used for producing damping elements.

    摘要翻译: PCT No.PCT / EP96 / 05640 Sec。 371日期:1998年10月7日 102(e)日期1998年10月7日PCT 1996年12月16日PCT公布。 出版物WO97 / 23535 日期1997年7月3日具有改善的动态力学性能并基于由4,4'-MDI和其他常规组分组成的异氰酸酯组分的微孔PU弹性体具有物理化学结构,其在溶液的凝胶渗透色谱(GPC) 在90℃下在含有1%二正丁胺的N,N-二甲基甲酰胺中制备的聚氨基甲酸甲酯(PMMA)作为标准的微孔聚氨酯弹性体显示除了低分子量主信号之外还发生的信号,并且包含 摩尔质量大于250,000g / mol的一个或多个峰变得更小或在向该溶液中加入氯化锂时消失,尿素含量为14至18重量%。 还提供了一种制备这种具有改进的动态力学性能的微孔PU弹性体的方法。 微孔PU弹性体可用于制造阻尼元件。