TWO COMPONENT POLYURETHANE COATING COMPOSITIONS COMPRISING ISOCYANURATE COMPOSITIONS FROM BIS(ISOCYANATOMETHYL) CYCLOHEXANE AND FROM ALIPHATIC DIISOCYANATES
    2.
    发明申请
    TWO COMPONENT POLYURETHANE COATING COMPOSITIONS COMPRISING ISOCYANURATE COMPOSITIONS FROM BIS(ISOCYANATOMETHYL) CYCLOHEXANE AND FROM ALIPHATIC DIISOCYANATES 有权
    两种组分聚氨酯涂料组合物,其包含来自BIS(异氰酸酯基)环己烷和来自二异氰酸酯的异氰酸酯组合物

    公开(公告)号:US20120130016A1

    公开(公告)日:2012-05-24

    申请号:US13297388

    申请日:2011-11-16

    IPC分类号: C09D175/06 C09D175/04

    摘要: The present invention provides two-component polyurethane compositions comprising, as one component, polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane or, preferably, a mixture of two or more of these, and of the isocyanurate of hexamethylene diisocyanate (HDI trimer), and, as the other component, a mix of a soft polyol having a hydroxyl functionality of from 2.5 to 5.0 and a molecular weight of from 500 to 3,000, and a hard polyol. Such compositions provide coatings, especially clear topcoats, which exhibit excellent scratch and mar and solvent resistance in addition to a good balance of hardness and flexibility without the need for increasing the volatile organic content (VOC) of the compositions. Also provided are compositions of a polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane with soft polyol which have lower VOCs.

    摘要翻译: 本发明提供双组分聚氨酯组合物,其包含作为一种组分的一种或多种双(异氰酸甲酯基)环己烷的异氰脲酸酯的多异氰酸酯组合物,或优选其两种或更多种的混合物和六亚甲基二异氰酸酯的异氰脲酸酯( HDI三聚体),作为另一组分,具有羟基官能度为2.5至5.0,分子量为500至3,000的软多元醇和硬多元醇的混合物。 这种组合物提供除了硬度和柔性的良好平衡之外还具有优异的耐擦伤性和抗溶剂性的涂层,特别是透明的面漆,而不需要增加组合物的挥发性有机物含量(VOC)。 还提供了一种或多种双(异氰酸甲酯基)环己烷与具有较低VOC的软多元醇的异氰脲酸酯的多异氰酸酯组合物的组合物。