GRAFT POLYMER MIXTURE
    2.
    发明申请
    GRAFT POLYMER MIXTURE 有权
    GRAFT聚合物混合物

    公开(公告)号:US20100160488A1

    公开(公告)日:2010-06-24

    申请号:US12600931

    申请日:2008-04-25

    IPC分类号: C09K8/42 C08F271/00 C08L77/00

    摘要: A graft polymer mixture comprising a grafting base based on brown coal and/or polyphenol is proposed, which has, as a graft component, a copolymer consisting of one or more ethylenically unsaturated monomers different from one another and one or more polyamides different from one another. Typical grafting bases are brown coal, brown coal coke, lignite and brown coal derivatives and tannins. Suitable graft components are in particular vinyl-containing components and styrenes, which may also be present in sulphonated form. Natural polyamides, such as, for example, casein, gelatin and collagen, are suitable polyamide components. These graft polymers having a preferred molar mass Mn>5000 g/mol are suitable as a mixture, in particular in construction chemistry applications, and in the development, exploitation and completion of underground mineral oil and natural gas deposits, and in deep wells, since they have excellent salt and temperature stabilities and are simultaneously water-soluble and/or biodegradable.

    摘要翻译: 提出了一种包含基于褐煤和/或多酚的接枝碱的接枝聚合物混合物,其具有作为接枝组分的由一种或多种彼此不同的烯属不饱和单体和一种或多种彼此不同的聚酰胺组成的共聚物 。 典型的接枝碱是褐煤,褐煤焦炭,褐煤和褐煤衍生物和单宁。 合适的接枝组分特别是含乙烯基的组分和苯乙烯,其也可以磺化形式存在。 天然聚酰胺,例如酪蛋白,明胶和胶原蛋白,是合适的聚酰胺组分。 具有优选的摩尔质量Mn> 5000g / mol的这些接枝聚合物适合作为混合物,特别是在建筑化学应用中,以及在地下矿物油和天然气沉积物的开发,开发和完井以及深井中,因为 它们具有优异的盐和温度稳定性,同时是水溶性和/或可生物降解的。

    Lignite-based foundry resins
    9.
    发明授权
    Lignite-based foundry resins 有权
    褐煤型铸造树脂

    公开(公告)号:US08802749B2

    公开(公告)日:2014-08-12

    申请号:US13867835

    申请日:2013-04-22

    IPC分类号: B22C1/22

    摘要: Described herein, in the preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is mixed with the polymerizable polyol and dispersing agents as additives to improve the suspension quality and binder performance of the lignite-containing part of the binder components.

    摘要翻译: 本文中优选的实施方案中描述的是一种可以与其他应用中的粘合剂一起使用的,与铸造用聚集体例如砂一起使用的用于模制或铸造金属部件的基于白酮的聚氨酯树脂粘合剂。 本文所述的粘合剂包括与可聚合多元醇,异氰酸酯和聚合催化剂结合的腐殖质,优选为白云母,以在铸造骨料如砂中原位形成聚氨酯树脂粘合剂。 将褐煤与可聚合多元醇和分散剂混合作为添加剂以改善含褐煤部分粘合剂组分的悬浮质量和粘合剂性能。