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    • 92. 发明申请
    • METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYAZOL
    • 生产高分子聚氨酯的方法
    • US20120101173A1
    • 2012-04-26
    • US13377346
    • 2010-06-17
    • Jörg BelackKlaus LeitnerHansjoachim ScupinOemer Uensal
    • Jörg BelackKlaus LeitnerHansjoachim ScupinOemer Uensal
    • C08J5/22C08K3/32
    • C08G73/18B01D67/0006B01D71/62B01D71/82B01D2323/12B01D2325/24B01D2325/26B01D2325/28C08G73/06C08G73/0616C08G73/0627C08G73/0633C08G73/0677C08G73/0688C08G73/0694C08G73/08C08G73/22H01M8/0289H01M8/103Y02P70/56
    • A process for preparing a polyazole with an inherent viscosity, measured in at least 96% sulfuric acid at 25° C., greater than 2.9 dl/g, comprising the steps of i) mixing one or more aromatic tetraamino compounds with one or more aromatic carboxylic acids or esters thereof which comprise at least two acid groups per carboxylic acid monomer, or mixing one or more aromatic and/or heteroaromatic diaminocarboxylic acids, in polyphosphoric acid to form a solution and/or dispersion ii) heating the mixture from step i) under inert gas to temperatures in the range from 120° C. to 350° C. to form the polyazole, wherein in step ii), a mixture having a concentration of polyphosphoric acid, calculated as P2O5 (by acidimetric means), based on the total amount of H3PO4, polyphosphoric acid and water in the mixture, greater than 78.22%, is heated, the amounts of the components are selected in step i) such that the proportion by weight of the tetraamino compounds and of the aromatic carboxylic acids or esters thereof which comprise at least two acid groups per carboxylic acid monomer, or of the diaminocarboxylic acids of the mixture in step ii), based on the total weight of the mixture, is less than 11.0% by weight, the reaction mixture is heated in step ii) to greater than 220° C.
    • 制备具有特性粘度的聚唑的方法,其在25℃下的至少96%硫酸中测量,大于2.9dl / g,包括以下步骤:i)将一种或多种芳族四氨基化合物与一种或多种芳族化合物 每个羧酸单体包含至少两个酸基团,或在多磷酸中混合一种或多种芳族和/或杂芳族二氨基羧酸以形成溶液和/或分散体的羧酸或其酯ii)加热来自步骤i)的混合物, 在惰性气体下,在120℃至350℃的温度范围内,形成聚唑,其中在步骤ii)中,以P 2 O 5(通过酸度法)计算的具有多磷酸浓度的混合物 混合物中的H 3 PO 4,多磷酸和水的总量大于78.22%,在步骤i)中选择组分的量,使得四氨基化合物和芳族羧酸的重量比 或其在每个羧酸单体中包含至少两个酸基团的酯或其酯,或者基于混合物的总重量,步骤ii)中的混合物的二氨基羧酸的含量小于11.0重量%,反应混合物为 在步骤ii)中加热到大于220℃