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11 条记录 (耗时 0.033 秒)

    Process for the production of cellular polyurethane elastomers
    8.
    发明授权
    Process for the production of cellular polyurethane elastomers 失效
    生产细胞聚氨酯弹性体的方法

    公开(公告)号：US4280007A

    公开(公告)日：1981-07-21

    申请号：US147905

    申请日：1980-05-08

    申请人： Ernst Meisert ,  Franz-Josef Bohne ,  Klaus Brecht ,  Werner Mormann ,  Wolfgang Krohn ,  Gerhard Henes

    发明人： Ernst Meisert ,  Franz-Josef Bohne ,  Klaus Brecht ,  Werner Mormann ,  Wolfgang Krohn ,  Gerhard Henes

    IPC分类号： C08G18/00 ,  C08G18/10 ,  C08G18/65 ,  C08G18/14

    CPC分类号： C08G18/10 ,  C08G2101/0066 ,  C08G2101/0083

    摘要： The instant invention is directed to a process for the production of a cellular polyurethane elastomer having a density of 0.45 to 0.8 g/cm.sup.3, comprising:(a) preparing a prepolymer having an isocyanate content of 10 to 25% by weight from aromatic polyisocyanates and a portion of one or more polyhydroxyl compounds having a molecular weight of from 400 to 6,000; and(b) reacting said prepolymer with the remainder of said polyhydroxyl compound and water;wherein the quantity of said water is 0.3 to 1% by weight and the equivalent ratio of isocyanate groups to isocyanate reactive compounds is in the range of 0.95:1 to 1.1:1, characterized in that from 0.1 to 0.8% by weight, based on the whole reaction mixture, of aromatic diprimary diamines having a molecular weight from 108 to 500 are also used in (a) or (b).

    摘要翻译： 本发明涉及一种生产密度为0.45至0.8g / cm 3的多孔聚氨酯弹性体的方法，包括：（a）制备异氰酸酯含量为芳族多异氰酸酯为10至25重量％的预聚物和 一部分一种或多种分子量为400至6000的多羟基化合物; 和（b）使所述预聚物与剩余的所述多羟基化合物和水反应; 其中，所述水的量为0.3〜1重量％，异氰酸酯基与异氰酸酯反应性化合物的当量比在0.95:1〜1.1:1的范围内，其特征在于，以0.1〜0.8重量％ （a）或（b）也使用分子量为108-500的芳族二元二胺的整个反应混合物。

    Polyurethane elastomers, a process for the preparation thereof and the use thereof
    9.
    发明申请
    Polyurethane elastomers, a process for the preparation thereof and the use thereof 审中-公开
    聚氨酯弹性体，其制备方法及其用途

    公开(公告)号：US20060293486A1

    公开(公告)日：2006-12-28

    申请号：US11454469

    申请日：2006-06-16

    申请人： Eva Emmrich ,  Klaus Brecht ,  Frank Hahn

    发明人： Eva Emmrich ,  Klaus Brecht ,  Frank Hahn

    IPC分类号： C08G18/00

    CPC分类号： C08G18/485 ,  C08G18/10 ,  C08G18/163 ,  C08G18/222 ,  C08G18/4804 ,  C08G18/48

    摘要： The invention relates to polyurethane elastomers, a process for the preparation of these polyurethane elastomers and a the preparation of elastomeric molded parts comprising these polyurethane elastomers. These elastomers comprise the reaction product of a polyol component, chain extenders and/or crosslinking agents, one or more amine catalysts, a catalyst mixture which contains at least one organic titanium compound and at least one organic zinc compound, and optionally an organic lithium carboxylate and/or an organic bismuth carboxylate; with a polyisocyanate component.

    摘要翻译： 本发明涉及聚氨酯弹性体，制备这些聚氨酯弹性体的方法和包含这些聚氨酯弹性体的弹性体模塑部件的制备。 这些弹性体包括多元醇组分，扩链剂和/或交联剂，一种或多种胺催化剂，含有至少一种有机钛化合物和至少一种有机锌化合物的催化剂混合物和任选的有机羧酸钴的反应产物 和/或有机铋酸铋; 与多异氰酸酯组分。

    Preheating device for internal combustion engine intake air and method of making same
    10.
    发明授权
    Preheating device for internal combustion engine intake air and method of making same 失效
    内燃机进气预热装置及其制造方法

    公开(公告)号：US5054459A

    公开(公告)日：1991-10-08

    申请号：US529440

    申请日：1990-05-29

    申请人： Uwe Reimer ,  Jurgen Kretschmer ,  Klaus Brecht

    发明人： Uwe Reimer ,  Jurgen Kretschmer ,  Klaus Brecht

    IPC分类号： F02N19/04 ,  F02M31/13 ,  F02M31/135 ,  F02N19/08

    CPC分类号： F02N19/08 ,  F02M31/13 ,  F02M31/135 ,  Y02T10/126

    摘要： A device is described for electrically pre-heating the intake air or the intake mixture of an internal combustion engine having at least on intake pipe. So that low-loss pre-heating, without considerable impairment of flow in the intake pipe, can also be realized in such zones in which the intake pipe has a geometrically irregular shape. It is proposed to perform the pre-heating via a layer of high electrical resistance applied to the inner surface of the intake pipe.

    摘要翻译： 一种装置被描述为对具有至少一个进气管的内燃机的进气或进气混合物进行电预热。 因此，在进气管具有几何不规则形状的区域中也可以实现低损耗预热，而在进气管中没有相当大的流量损失。 提出通过施加到进气管的内表面的高电阻层进行预热。