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    Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof
    31.
    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。