METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYAZOL
    82.
    发明申请
    METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYAZOL 有权
    生产高分子聚氨酯的方法

    公开(公告)号:US20120101173A1

    公开(公告)日:2012-04-26

    申请号:US13377346

    申请日:2010-06-17

    IPC分类号: C08J5/22 C08K3/32

    摘要: 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.

    摘要翻译: 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℃

    METHOD FOR PRODUCING THERMOSETTING RESIN HAVING BENZOXAZINE RING
    88.
    发明申请
    METHOD FOR PRODUCING THERMOSETTING RESIN HAVING BENZOXAZINE RING 有权
    用于生产具有苯并噻唑环的热固性树脂的方法

    公开(公告)号:US20100210810A1

    公开(公告)日:2010-08-19

    申请号:US12670932

    申请日:2008-08-01

    IPC分类号: C08G14/06

    摘要: The present invention provides a method for producing a thermosetting resin having a benzoxazine ring, comprising the step of: reacting a bifunctional phenol compound, a diamine compound, and an aldehyde compound in a mixed solvent of an aromatic nonpolar solvent and an alcohol.

    摘要翻译: 本发明提供了具有苯并恶嗪环的热固性树脂的制造方法,其特征在于,在芳香族非极性溶剂和醇的混合溶剂中使双官能酚化合物,二胺化合物和醛化合物反应。

    RIGID-ROD COPOLYMER COMPOSITIONS AND THE POLYMERIC FIBERS FABRICATED FROM THOSE COMPOSITIONS FOR ENHANCED FLAME RESISTANCE
    89.
    发明申请
    RIGID-ROD COPOLYMER COMPOSITIONS AND THE POLYMERIC FIBERS FABRICATED FROM THOSE COMPOSITIONS FOR ENHANCED FLAME RESISTANCE 有权
    RIGID-ROD共聚物组合物和由这些组合物制成的用于增强阻燃性的聚合纤维

    公开(公告)号:US20100145004A1

    公开(公告)日:2010-06-10

    申请号:US12329662

    申请日:2008-12-08

    IPC分类号: C08G61/12 C08G73/06 C08G75/32

    摘要: Rigid-rod copolymer compositions incorporating PBO (poly(p-phenylenebenzobisoxazole)), DiOH-PBO (poly(2,5-dihydroxy-1,4-phenylenebenzobisoxazole), DiOH-PBI (poly(2,5-dihydroxy-1,4-phenylenebenzobisimidazole)), DiOH-PyBI (poly(2,5-dihydroxy-1,4-phenylenepyridobisimidazole), PBZT (poly(p-phenylenebenzobisthiazole)) and its corresponding dihydroxy analogues attached to a flexibilizing hexafluoroisopropylidene linkage are described. Also described are their fabrication into fibers by a dry jet wet spinning technique and the measured fiber mechanical properties. The copolymer compositions are highly flame-resistant and have potential utility for fire-protective clothing.

    摘要翻译: 掺有PBO(聚(对亚苯基苯并双恶唑)),DiOH-PBO(聚(2,5-二羟基-1,4-亚苯基苯并双恶唑)),DiOH-PBI(聚(2,5-二羟基-1,4 - 苯基苯并双咪唑)),DiOH-PyBI(聚(2,5-二羟基-1,4-苯基苯并二咪唑)),PBZT(聚(对亚苯基苯基双噻唑))及其相应的二羟基类似物连接在柔性六氟异亚丙基上。 它们通过干喷射湿法纺丝技术制成纤维,并测量纤维机械性能。共聚物组合物具有高度的阻燃性,具有防火服装的潜力。