POLYURETHANE ENCAPSULATE
    2.
    发明申请
    POLYURETHANE ENCAPSULATE 审中-公开
    聚氨酯包封

    公开(公告)号:US20160031765A1

    公开(公告)日:2016-02-04

    申请号:US14763198

    申请日:2014-04-24

    Abstract: Embodiments relate to a polyurethane coating film that has improved water barrier properties combined with mechanical strength. According to embodiments, a polyurethane encapsulate includes a polyurethane film that is a reaction product of an aromatic isocyanate and a polyol, and the polyol includes a butylene oxide based polyether polyol in an amount of at least 35 wt % based on a total weight of the polyol. The polyurethane encapsulate further includes a particulate material that is enclosed by the polyurethane film.

    Abstract translation: 实施例涉及具有改善的阻水性能和机械强度的聚氨酯涂膜。 根据实施方案,聚氨酯封装包括作为芳族异氰酸酯和多元醇的反应产物的聚氨酯膜,多元醇包含基于总重量为至少35重量%的环氧丁烷基聚醚多元醇 多元醇。 聚氨酯封装还包括由聚氨酯膜封闭的颗粒材料。

    Process for Making Urethane-Isocyanates
    3.
    发明申请
    Process for Making Urethane-Isocyanates 有权
    制备聚氨酯 - 异氰酸酯的方法

    公开(公告)号:US20160002496A1

    公开(公告)日:2016-01-07

    申请号:US14763517

    申请日:2014-03-21

    Abstract: Polyisocyanurate or polyurethane-isocyanurate polymers are made by curing an aromatic polyisocyanate or a mixture of at least one aromatic polyisocyanate and at least one polyol having a hydroxyl equivalent weight of up to 200 in which the isocyanate index is at least 2.00, in the presence of at least one isocyanate trimerization catalyst, to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 100° C., and then exposing the polyisocyanurate or polyurethane-isocyanurate polymer formed step a) to water under superatmospheric pressure at a temperature of at least 70° C.

    Abstract translation: 聚异氰脲酸酯或聚氨酯 - 异氰脲酸酯聚合物是通过将芳族多异氰酸酯或至少一种芳族多异氰酸酯与至少一种羟基当量重量至多为200的多元醇(其中异氰酸酯指数为至少2.00)的混合物在 至少一种异氰酸酯三聚催化剂,以形成玻璃化转变温度为至少100℃的聚异氰脲酸酯或聚氨酯 - 异氰脲酸酯聚合物,然后在超大气压下将形成步骤a)的聚异氰脲酸酯或聚氨酯 - 异氰脲酸酯聚合物暴露于水中, 温度至少为70℃

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