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    • 9. 发明授权
    • Nanocomposites based on polyurethane or polyurethane-epoxy hybrid resins prepared avoiding isocyanates
    • 基于聚氨酯或聚氨酯 - 环氧杂化树脂的纳米复合材料制备避免异氰酸酯
    • US08143346B2
    • 2012-03-27
    • US10567945
    • 2004-08-13
    • Constantinos D. DiakoumakosDimiter Lubomirov Kotzev
    • Constantinos D. DiakoumakosDimiter Lubomirov Kotzev
    • C08G18/63C08F2/44
    • C08G71/04
    • A fast curable non-isocyanate-based polyurethane- and polyurethane-epoxy network nanocomposite polymeric compositions are derived upon crosslinking a mixture comprising of natural or modified nano-clay [ionic phyllosilicate] with platelet thickness in the scale of A (˜1 nm) and aspect ratio (length/thickness) higher than 10 (nm)] preferably natural or modified montmorillonite with either a monomer(s) or oligomer(s) bearing at least one cyclocarbonate group or a mixture of the latter with an epoxy resin, with a hardener, which is a monomer or oligomer or mixtures therefrom, bearing primary and/or secondary amino groups. The use of the nanoclays reduces the gel time and increases the adhesion of the cured polyurethane and polyurethane/epoxy hybrid and also reduces its water absorption.
    • 快速固化的非异氰酸酯基聚氨酯和聚氨酯 - 环氧网络纳米复合材料聚合物组合物是通过将包含天然或修饰的纳米粘土[离子页硅酸盐]的混合物与A(〜1nm)的等级的血小板厚度和 优选天然或改性蒙脱石与具有至少一个环碳酸酯基团的单体或低聚物或其后者与环氧树脂的混合物的长宽比(长度/厚度)优选为10(nm) 固化剂,其是具有伯和/或仲氨基的单体或低聚物或其混合物。 纳米粘土的使用降低了凝胶时间,并增加了固化的聚氨酯和聚氨酯/环氧树脂混合物的粘附性,并且还降低了其吸水性。
    • 10. 发明申请
    • TWO COMPONENT CURABLE COMPOSITIONS
    • 两种组分可固化组合物
    • US20110301264A1
    • 2011-12-08
    • US13211617
    • 2011-08-17
    • Michelle Miller
    • Michelle Miller
    • C08K3/10B05D3/10B05D3/12
    • C08K3/346B82Y30/00C08K2201/011C08L63/00
    • A two component reactive composition is described, each component, before they are mixed together, contains a filler having thin platelet structure, e.g. a nanoclay, and a further filler that interacts with the platelets. The individual components can have a filler loading that makes them flowable and therefore the components can readily be mixed together for ready dispensing. When the components are mixed thoroughly together, the resulting resin may have a viscosity higher than that of the individual components. The loading of the filler is preferably chosen so that the resulting blended resin is capable of being applied on to a vertical surface without experiencing significant slump. The viscosity of the mixed material can be up to 5 to 10 times or more than that of the individual components before mixing. The composition can be used in adhesives, modelling pastes, coatings, sealants, putties, mastics, stopping compounds, caulking materials, encapsulants and surface coatings.
    • 描述了两组分反应性组合物,每种组分在它们混合在一起之前,含有具有薄片状结构的填料, 纳米粘土和与血小板相互作用的另外的填料。 各个组件可以具有使其可流动的填料负载,因此组分可以容易地混合在一起以便于分配。 当组分充分混合在一起时,所得树脂的粘度可以高于单独组分的粘度。 优选选择填充物的加载,使得所得到的混合树脂能够施加到垂直表面上而不经历显着的坍落度。 在混合前,混合材料的粘度可高达各组分的5至10倍或更多。 该组合物可用于粘合剂,造型浆料,涂料,密封剂,油灰,胶泥,停止化合物,填缝材料,密封剂和表面涂层。