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    Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof
    7.
    发明授权
    Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof 失效
    新型烷氧基化多元醇预聚物，由其制备的阻燃互聚物及其制备方法

    公开(公告)号：US4108808A

    公开(公告)日：1978-08-22

    申请号：US745049

    申请日：1976-11-26

    申请人： Thirumurti Narayan ,  Moses Cenker

    发明人： Thirumurti Narayan ,  Moses Cenker

    IPC分类号： C08G16/02 ,  C08G16/04 ,  C08G18/54 ,  C08J9/00

    CPC分类号： C08G16/0262 ,  C08G16/04 ,  C08G18/546

    摘要： Liquid oxyalkylated polyol prepolymers are prepared by oxyalkylating a prepolymer prepared from a hydroxy aromatic compound, an aldehyde and furfuryl alcohol with an alkylene oxide containing about 2-4 carbon atoms. The oxyalkylated polyol prepolymers have a viscosity of 1000-500,000 centipoises at 25.degree. C. and contain about 1.1-6 moles of interpolymerized aldehyde, about 3.1-15 moles of interpolymerized furfuryl alcohol, and about 1-10 moles of interpolymerized alkylene oxide for each mole of interpolymerized hydroxy aromatic compound. The resultant prepolymers are highly reactive and may be further polymerized with or without monomers such as polyisocyanate to produce flame retardant solid or cellular interpolymers. Flame retardant solid or cellular polyurethanes are prepared in one variant by interpolymerizing organic polyisocyanates with the oxyalkylated polyol prepolymers. In another variant, flame retardant closed cell cellular interpolymers are provided. Processes are provided for preparing the aforementioned novel oxyalkylated polyol prepolymers and solid or cellular interpolymers.

    摘要翻译： 液体烷氧基化多元醇预聚物通过使由羟基芳族化合物，醛和糠醇制备的预聚物与含约2-4个碳原子的烯化氧进行烷氧基化来制备。 烷氧基化多元醇预聚物在25℃下的粘度为1000-500,000厘泊，并且含有约1.1-6摩尔的共聚醛，约3.1-15摩尔的共聚糠醇，以及每个约1-10摩尔的互聚环氧烷 的共聚羟基芳族化合物。 得到的预聚物是高度反应性的并且可以与单体如多异氰酸酯进一步聚合，以产生阻燃固体或细胞互聚物。 通过使有机多异氰酸酯与烷氧基化多元醇预聚物共聚制备阻燃固体或细胞聚氨酯。 在另一个变体中，提供阻燃闭孔细胞互聚物。 提供了制备上述新型烷氧基化多元醇预聚物和固体或细胞互聚物的方法。

    Carbodiimide-isocyanurate foams containing urethane linkages
    8.
    发明授权
    Carbodiimide-isocyanurate foams containing urethane linkages 失效
    含氨基甲酸酯键的碳二亚胺 - 异氰脲酸酯泡沫

    公开(公告)号：US4029610A

    公开(公告)日：1977-06-14

    申请号：US566249

    申请日：1975-04-09

    申请人： Thirumurti L. Narayan ,  Moses Cenker

    发明人： Thirumurti L. Narayan ,  Moses Cenker

    IPC分类号： C08G18/09 ,  C08G18/16 ,  C08G18/79 ,  C08G18/18 ,  C08G18/30 ,  C08G18/48

    CPC分类号： C08G18/161 ,  C08G18/095 ,  C08G18/168 ,  C08G18/797 ,  C08G2101/0025 ,  Y10S521/901 ,  Y10S521/902

    摘要： Cellular foam compositions are prepared by catalytically condensing an organic polyisocyanate in the presence of a blowing agent, from 0.01 to 0.5 equivalent per equivalent of isocyanate of a primary hydroxy-terminated polyoxyalkylene or polyester polyol and a catalyst system comprising (a) methanol, (b) a tertiary amine trimerization catalyst, and (c) a urethane catalyst. The resulting foam compositions are characterized by carbodiimide, isocyanurate and urethane linkages and exhibit unexpectedly low friability, improved strength properties, and good flame retardancy.

    摘要翻译： 蜂窝状泡沫组合物通过在发泡剂存在下催化缩合有机多异氰酸酯制备，每当量的主要羟基封端的聚氧化烯或聚酯多元醇的异氰酸酯为0.01至0.5当量，以及包含（a）甲醇，（b ）叔胺三聚催化剂，和（c）氨基甲酸酯催化剂。 所得的泡沫组合物的特征在于碳二亚胺，异氰脲酸酯和氨基甲酸酯键，并且具有出人意料的低脆性，改进的强度性能和良好的阻燃性。