HIGHLY FILLED POLYURETHANE COMPOSITES
    2.
    发明申请
    HIGHLY FILLED POLYURETHANE COMPOSITES 有权
    高填充聚氨酯复合材料

    公开(公告)号:US20160369080A1

    公开(公告)日:2016-12-22

    申请号:US14784196

    申请日:2015-01-22

    摘要: Composite materials and methods for their preparation are described herein. The composite materials can comprise (a) a polyurethane and (b) from 35% to 90% by weight, based on the total weight of the composite, of a particulate filler dispersed in the polyurethane. The polyurethane can be formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols. The one or more polyols that form the polyurethane comprise a high hydroxyl number polyol having a hydroxyl number of at least 250 mg KOH/g. In some cases, the one or more polyols that form the polyurethane can have a weight average equivalent weight of from 200 to 1100 amu. In some cases, the one or more polyols that form the polyurethane can include less than 5% by weight, based on the total weight of the one or more polyols that form the polyurethane, of one or more flexible polyols having a hydroxyl number of less than 150 mg KOH/g and a functionality of less than 3.

    摘要翻译: 本文描述了复合材料及其制备方法。 复合材料可以包含(a)聚氨酯和(b)基于复合材料的总重量的35重量%至90重量%的分散在聚氨酯中的颗粒填料。 聚氨酯可以通过(i)一种或多种选自二异氰酸酯,多异氰酸酯及其混合物的异氰酸酯的反应形成,和(ii)一种或多种多元醇。 形成聚氨酯的一种或多种多元醇包含羟值为至少250mg KOH / g的高羟值多元醇。 在一些情况下,形成聚氨酯的一种或多种多元醇可具有200至1100amu的重均当量。 在一些情况下,形成聚氨酯的一种或多种多元醇可以包含小于5重量%,基于形成聚氨酯的一种或多种多元醇的总重量,一种或多种羟基数少于的柔性多元醇 超过150mg KOH / g,功能小于3。

    THE USE OF EVAPORATIVE COOLANTS TO MANUFACTURE FILLED POLYURETHANE COMPOSITES
    4.
    发明申请
    THE USE OF EVAPORATIVE COOLANTS TO MANUFACTURE FILLED POLYURETHANE COMPOSITES 审中-公开
    蒸发器用于制造填充聚氨酯复合材料的应用

    公开(公告)号:US20160280874A1

    公开(公告)日:2016-09-29

    申请号:US14649077

    申请日:2014-07-28

    摘要: Polyurethane composites and methods of preparation are described herein. The methods of making the polyurethane composite can include mixing (1) at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (2) at least one polyol, (3) an inorganic filler, and (4) an evaporative coolant in an extruder to form a mixture. The method also include extruding the mixture into a mold cavity, generating heat in the mold cavity from the reaction of the at least one isocyanate and the at least one polyol, and allowing the evaporative coolant to migrate to an interface between the mixture and the interior mold surface. The temperature of the mixture causes evaporation of the evaporative coolant at the interface thereby removing heat at the interface. Suitable evaporative coolants for use in the methods of making the polyurethane composites include hydrofluorocarbons and hydrochlorofluorocarbons.

    摘要翻译: 本文描述了聚氨酯复合材料和制备方法。 制备聚氨酯复合材料的方法可包括混合(1)至少一种选自二异氰酸酯,多异氰酸酯及其混合物的异氰酸酯,(2)至少一种多元醇,(3)无机填料和(4) 在挤出机中形成蒸发冷却剂以形成混合物。 该方法还包括将混合物挤出到模具腔中,在至少一种异氰酸酯和至少一种多元醇的反应之间在模腔中产生热量,并允许蒸发冷却剂迁移到混合物和内部之间的界面 模具表面。 混合物的温度导致蒸发冷却剂在界面处的蒸发,从而消除界面处的热量。 用于制备聚氨酯复合材料的方法中的合适的蒸发冷却剂包括氢氟烃和氢氯氟烃。