Reinforced foam composites comprising hydroxy-containing vinyl ester
resin
    54.
    发明授权
    Reinforced foam composites comprising hydroxy-containing vinyl ester resin 失效
    包含含羟基乙酸酯树脂的增强泡沫复合材料

    公开(公告)号:US5091436A

    公开(公告)日:1992-02-25

    申请号:US482298

    申请日:1990-02-20

    Abstract: There is disclosed a polyurethane/unsaturated polyester hybrid foam of the rigid type prepared from novel components including not only polyol and polyisocyanate but also a unique hydroxy-containing vinyl ester and vinyl monomer, optionally together with an additional polar vinyl monomer, all together providing the necessary components for a hybrid polyurethane-polyvinyl ester matrix, which mixture of components before foaming is capable of having suspended therein fillers and reinforcing fibers to produce a foam or reinforced foam composite having a density between about 20 and 100 pounds per cubic foot. The reinforced foam can be made into baords and the like and advantageously has continuous fiberglass strands or yarn disposed longitudinally in or adjacent the surface skin of the foam. The strands or yarn are preferably parallel and close together and are preferably flattened out in the foam-forming process so that the surfaces have a continuous fiberglass implant longitudinally and substantially so transversely. One preferred structural composite is illustrated in the drawings.

    Abstract translation: 公开了一种由新型成分制成的刚性类型的聚氨酯/不饱和聚酯混合泡沫体,其不仅包括多元醇和多异氰酸酯,而且还包括独特的含羟基的乙烯基酯和乙烯基单体,任选与另外的极性乙烯基单体一起提供 用于混合聚氨酯 - 聚乙烯酯基质的必需组分,其中发泡前组分的混合物能够悬浮在填料和增强纤维中以产生密度在约20和100磅/立方英尺之间的泡沫或增强泡沫复合材料。 增强的泡沫可以制成保持器等,并且有利地具有连续的玻璃纤维束或纱线,其纵向放置在泡沫的表面皮肤中或附近。 绞线或纱线优选平行并靠近在一起,并且优选在泡沫形成过程中被平坦化,使得表面具有纵向和基本上如此横向的连续玻璃纤维植入物。 在附图中示出了一种优选的结构复合材料。

    Ceramic fiber refractory moldable compositions
    55.
    发明授权
    Ceramic fiber refractory moldable compositions 失效
    陶瓷纤维耐火材料组合物

    公开(公告)号:US5053362A

    公开(公告)日:1991-10-01

    申请号:US250030

    申请日:1988-09-27

    Abstract: A moldable refractory composition containing from about 42 to about 83% by weight of a liquid vehicle, such as water; from about 13 to 50% by weight of ceramic fiber; from about 0.5 to 7% by weight of an inorganic binder derived from an inorganic colloidal dispersion having active hydroxyl groups capable of reacting with hydroxyl groups of the ceramic fiber; and from about 0.5 to 5% by weight of a high molecular weight organic resin which serves multiple functions including tackifier of the wet composition, cohesiveness of the wet composition, appropriate rheology of the wet composition to provide shelf life and a wide range of applications and in dry composition to provide green strength. Also described is the method of manufacture for the subject refractory moldable composition. Upon drying, the moldable composition adheres well to surfaces such as those encountered in furnacing applications and construction applications to metals and other ceramic materials and dries to give an essentially crack-free refractory shape which exhibits greater resilience than heretofore known moldable refractory compositions. The dried moldable composition is useful as thermal insulation at temperatures up to 1650.degree. C. (3000.degree. F.) dependent upon the type of ceramic fibers and inorganic binders contained as ingredients in the composition.

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