Process for the preparation of charged thermosetting compounds of the
polyurethane type and compounds obtained thereby
    1.
    发明授权
    Process for the preparation of charged thermosetting compounds of the polyurethane type and compounds obtained thereby 失效
    制备聚氨酯类型及其化合物的充电热成型化合物的方法

    公开(公告)号:US5238969A

    公开(公告)日:1993-08-24

    申请号:US835926

    申请日:1992-03-31

    CPC分类号: C08G18/0842 C08K3/0033

    摘要: Process for the preparation of filled heat-curable compounds of the polyurethane type by reaction of condensation of the constituents of the desired compound in the presence of a pulverulent filler, which is characterized in that the said filler is predispersed in the presence of a stabilizing agent in a liquid organic phase compatible with the desired heat-curable compound in the course of its formation reaction, the said filler being then in the form of a homogeneous and stable suspension, and the suspension thus prepared is then introduced into the reaction mixture before, during or after the introduction of at least one of the constituents of the desired heat-curable compound.The process according to the invention makes it possible to produce compounds of the polyurethane type whose mechanical and physical characteristics are at least equivalent or even improved in relation to those of the unfilled identical compounds by virtue of the excellent distribution of the inorganic filler.

    摘要翻译: PCT No.PCT / FR90 / 00637 Sec。 371日期:1992年3月31日 102(e)1992年3月31日PCT提交1990年8月30日PCT公布。 出版物WO91 / 03513 1991年3月21日。用于通过在粉状填料的存在下使所需化合物的组分冷凝反应来制备聚氨酯类型的填充的热固化性化合物的方法,其特征在于所述填料预分散 在其形成反应过程中在与期望的可热固化化合物相容的液体有机相中存在稳定剂的情况下,所述填料然后为均匀且稳定的悬浮液,然后将如此制备的悬浮液 在引入期望的可热固化的化合物的至少一种组分之前,期间或之后引入反应混合物。 根据本发明的方法,可以通过无机填料的优异分布,生产其机械和物理特性与未填充的相同化合物的机械和物理特性至少相当或甚至改善的化合物。