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    Polymeric formulations with chemically adjustable rheology for the manufacture of prepregs and articles made of composite material
    1.
    发明授权
    Polymeric formulations with chemically adjustable rheology for the manufacture of prepregs and articles made of composite material 有权
    具有化学可调节流变性的聚合制剂，用于制造由复合材料制成的预浸料和制品

    公开(公告)号：US09217082B2

    公开(公告)日：2015-12-22

    申请号：US14008151

    申请日：2012-03-29

    申请人： Bruno D'Andrea ,  Anna Di Cosmo ,  Valeria Vinti

    发明人： Bruno D'Andrea ,  Anna Di Cosmo ,  Valeria Vinti

    IPC分类号： C08J5/24 ,  B32B27/04 ,  B32B27/38 ,  B32B27/40 ,  C08G18/80 ,  C08L63/00 ,  C08G18/69 ,  C08G18/40 ,  C08G18/28 ,  C08G59/40 ,  C08L75/04

    CPC分类号： C08L63/00 ,  C08G18/4045 ,  C08G18/698 ,  C08G18/8061

    摘要： A polymeric formulation comprising at least one first epoxy resin having a density between 100 and 10,000 Pa·s, a blocked isocyanate, a polymer comprising hydroxy functional groups, a thermoplastic resin and a cross-linking agent, the polymer comprising hydroxyl functional groups with a hydroxyl content in the range 0.65 to 0.95 meq/g, the isocyanate-equivalents-to-polymer-OH-equivalents rate being in the range 0.60 to 1.1. The first epoxy resin is substantially semisolid at room temperature, the formulation comprising at least one second epoxy resin substantially liquid at room temperature, the first and second epoxy resins being present in a weight ratio from 60:40 to 80:20. These formulations are advantageously used for manufacturing prepregs and articles of composite material according to a dry winding process. By virtue of improved stability, a higher glass transition temperature, and a rheological profile result which can be chemically tailored to the needs of the impregnation/dry winding process.

    摘要翻译： 一种包含至少一种密度为100至10,000Pa·s的第一环氧树脂，封端异氰酸酯，包含羟基官能团的聚合物，热塑性树脂和交联剂的聚合物配方，所述聚合物包含羟基官能团与 羟基含量在0.65〜0.95meq / g的范围内，异氰酸酯 - 当量 - 聚合物-OH-当量的比率在0.60-1.1的范围内。 第一环氧树脂在室温下基本上是半固体，该制剂包含至少一种在室温下基本上液体的第二环氧树脂，第一和第二环氧树脂以重量比为60:40至80:20存在。 这些制剂有利地用于根据干缠绕工艺制造预浸料和复合材料制品。 由于改进的稳定性，更高的玻璃化转变温度和流变曲线结果，其可根据浸渍/干缠绕工艺的需要进行化学定制。

    Liquid Thickeners for Aqueous Systems
    2.
    发明申请
    Liquid Thickeners for Aqueous Systems 审中-公开
    液体增稠剂用于水系统

    公开(公告)号：US20090209659A1

    公开(公告)日：2009-08-20

    申请号：US12091508

    申请日：2006-10-23

    申请人： Anna Di Cosmo ,  Giuseppe Li Bassi

    发明人： Anna Di Cosmo ,  Giuseppe Li Bassi

    IPC分类号： A61K8/87 ,  C08K5/10 ,  C09D175/04 ,  C11D3/37

    CPC分类号： C08G18/755 ,  A61K8/37 ,  A61K8/87 ,  A61K2800/48 ,  C08G18/10 ,  C08G18/6677 ,  C08L75/04 ,  C09D7/43 ,  C11D1/74 ,  C11D3/3726 ,  C08G18/2825 ,  C08L2666/18

    摘要： Liquid thickener for aqueous systems containing, as viscosity suppressing agent, from 5 to 40% wt of ethoxylated mono- and/or di-glycerides of carboxylic acids having from 6 to 18 carbon atoms, from 15 to 40% wt of a polyurethane associative thickener, obtained from the reaction of at least one organic polyisocyanate, at least one water soluble polyether diol and at least one hydrophobic capping agent containing from 10 to 24 carbon atoms, from 20 to 80% wt of water, and which is devoid of organic solvents, volatile organic compounds and other viscosity suppressing agents.

    摘要翻译： 含有6至18个碳原子的羧酸的乙氧基化单 - 和/或二 - 甘油酯，15-40重量％的聚氨酯缔合增稠剂作为粘度抑制剂的含水体系的液体增稠剂 由至少一种有机聚异氰酸酯，至少一种水溶性聚醚二醇和至少一种含10-24个碳原子的疏水性封端剂，20-80％重量的水和没有有机溶剂的反应得到 挥发性有机化合物等粘度抑制剂。