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    Solid particle-form polymerizable polymeric material and compositions, structures and methods of employing and producing the same
    106.
    发明授权
    Solid particle-form polymerizable polymeric material and compositions, structures and methods of employing and producing the same 失效
    固体颗粒形式可聚合的聚合物材料及其组合物，结构和使用及其制备方法

    公开(公告)号：US4101473A

    公开(公告)日：1978-07-18

    申请号：US649352

    申请日：1976-01-15

    申请人： Harry L. Lander

    发明人： Harry L. Lander

    IPC分类号： C08G18/00 ,  C08G18/10 ,  C08G18/69 ,  C08G18/80 ,  C08G18/83 ,  C08L75/00 ,  C09D5/03 ,  C09D127/04 ,  C09D175/00 ,  C09J175/00

    CPC分类号： C08L75/00 ,  C08G18/10 ,  C08G18/69 ,  C08G2140/00 ,  C08G2150/20 ,  C08G2170/20

    摘要： Solid particle-form, polymerizable or cross-linkable, multi-functional polymeric material containing blocked isocyanate groups wherein the blocked isocyanate groups making up said polymeric material comprise only a portion of the total isocyanate groups to produce said polymeric material, such as extrudable, thermosettable powdered blocked polyurethane (PBP) has been prepared. This material is useful per se for the manufacture of articles and may be added in combination with other materials, such as thermoplastic resin, e.g. polyethylene, polyvinyl cloride, for improving the usefulness, versatility and physical and/or chemical properties thereof. The polymeric material, such as PBP, is useful as a coating on metal and non-metallic surfaces, e.g. glass or fibrous surfaces, either as a protective coating or for the purpose of laminating such surfaces to another surface. The polymeric material, such as PBP, may be manufactured by reacting a liquid reaction admixture comprising a partially blocked polyurethane prepolymer with a chain extending reactant under conditions such that the reaction admixture is reacted in dispersed form with the result that the reaction product is recoverable in solid particle-form as said PBP.

    摘要翻译： 含有封端异氰酸酯基团的固体颗粒形式，可聚合或可交联的多功能聚合物材料，其中组成所述聚合物材料的封闭异氰酸酯基团仅包含一部分总异氰酸酯基团以产生所述聚合物材料，例如可挤出的，可热固化的 已经制备了粉状封闭聚氨酯（PBP）。 该材料本身用于制造制品，并且可以与其它材料（例如热塑性树脂，例如， 聚乙烯，聚氯乙烯，用于改善其用途，通用性及其物理和/或化学性质。 聚合物材料，例如PBP，可用作金属和非金属表面上的涂层，例如， 玻璃或纤维表面，作为保护涂层或用于将这些表面层压到另一表面的目的。 诸如PBP的聚合物材料可以通过使包含部分封闭的聚氨酯预聚物的液体反应混合物与扩链反应物在使反应混合物以分散形式反应的条件下反应来制备，结果反应产物可以在 作为所述PBP的固体颗粒形式。