Method for the preparation of aromatic chloroformates
    3.
    发明授权
    Method for the preparation of aromatic chloroformates 有权
    芳香族氯甲酸酯的制备方法

    公开(公告)号:US07297754B2

    公开(公告)日:2007-11-20

    申请号:US11170306

    申请日:2005-06-28

    IPC分类号: C08G64/00

    摘要: A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a flow reactor to obtain a unidirectionally flowing reaction mixture. The unidirectionally flowing reaction mixture is maintained at a temperature between about 0° C. and about 60° C. to produce a single product stream comprising an aromatic chloroformate.

    摘要翻译: 一种制备芳族氯甲酸酯的方法,包括将至少一种芳族羟基化合物,光气,至少一种溶剂和至少一种有机碱的混合物引入流动反应器中以获得单向流动的反应混合物。 将单向流动的反应混合物保持在约0℃至约60℃之间的温度下,以产生包含芳族氯甲酸酯的单一产物流。

    Polycarbonates with fluoroalkylene carbonate end groups
    7.
    发明授权
    Polycarbonates with fluoroalkylene carbonate end groups 有权
    具有氟代亚烷基碳酸酯端基的聚碳酸酯

    公开(公告)号:US07687557B2

    公开(公告)日:2010-03-30

    申请号:US12013141

    申请日:2008-01-11

    IPC分类号: C08L69/00 C08K5/42 C08G64/14

    摘要: Polycarbonate compositions having an aromatic polycarbonate resin with 90% or greater fluoroalkylene carbonate end-groups are formed from a partially fluorinated alcohol or a partially fluorinated polymeric alcohol, and a bisphenol and a carbonate source using melt or interfacial polymerization methods. Copolymers and blends with a variety of other bisphenols and other thermoplastics are also described. The polycarbonate compositions show high water contact angles, fluorine enrichment on the surface layer of molded articles, and good flame retardant properties and are useful in a variety of applications including medical, automotive, telecommunication and weatherable applications.

    摘要翻译: 具有90%或更多氟代亚烷基碳酸酯端基的芳族聚碳酸酯树脂的聚碳酸酯组合物由部分氟化的醇或部分氟化的聚合物醇和使用熔体或界面聚合方法的双酚和碳酸酯源形成。 还描述了与各种其它双酚和其它热塑性塑料的共聚物和共混物。 聚碳酸酯组合物显示出高的接触角,在模制品的表面层上富集氟,并具有良好的阻燃性能,并且可用于各种应用,包括医疗,汽车,电信和耐候性应用。