THE USE OF EVAPORATIVE COOLANTS TO MANUFACTURE FILLED POLYURETHANE COMPOSITES
    2.
    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。