Phase transfer catalyzed method for preparation of polyetherimides
    1.
    发明授权
    Phase transfer catalyzed method for preparation of polyetherimides 有权
    相转移催化聚醚酰亚胺的制备方法

    公开(公告)号:US07714095B2

    公开(公告)日:2010-05-11

    申请号:US11363681

    申请日:2006-02-28

    摘要: Polyether polymers, such as polyetherimides, are prepared by the reaction of a dihydroxy-substituted aromatic hydrocarbon alkali metal salt, such as bisphenol A disodium salt, with a bis(N-(chlorophthalimido))aromatic compound, such as 1,3- and/or 1,4-bis(N-(4-chlorophthalimido))benzene, in a solvent such as o-dichlorobenzene and in the presence of a phase transfer catalyst such as a hexaalkylguanidinium chloride. Several embodiments may be employed to improve the method. They comprise employing substantially dry reagents, employing a high solids level in solvent, beginning with an excess of bis(N-(chlorophthalimido))-aromatic compound and incrementally adding alkali metal salt, employing alkali metal salt of small particle size, and using reagents of high purity.

    摘要翻译: 聚醚聚合物如聚醚酰亚胺通过二羟基取代的芳族烃碱金属盐如双酚A二钠盐与双(N-(氯代邻苯二甲酰亚胺基))芳族化合物如1,3-和 /或1,4-双(N-(4-氯邻苯二甲酰亚氨基))苯,在溶剂如邻二氯苯中,并在相转移催化剂如六烷基氯化the存在下进行。 可以采用几个实施例来改进该方法。 它们包括使用基本上干的试剂,在溶剂中使用高固体含量,从过量的双(N-(氯代邻苯二甲酰亚胺基)) - 芳族化合物开始,并逐渐加入碱金属盐,使用小粒径的碱金属盐,并使用试剂 的高纯度。

    Method to prepare bis(haloimides)
    3.
    发明授权
    Method to prepare bis(haloimides) 有权
    制备双(卤代酰亚胺)的方法

    公开(公告)号:US08592548B2

    公开(公告)日:2013-11-26

    申请号:US11022907

    申请日:2004-12-22

    IPC分类号: C08G8/02

    CPC分类号: C07D209/48 C08G73/12

    摘要: Bis(halophthalimides) are prepared in mixture in an organic liquid such as ortho-dichlorobenzene or anisole, by a reaction at a temperature of at least 150° C. between at least one diamine compound and at least one halophthalic anhydride in the presence of imidization catalyst. The reaction mixture is maintained at about 15% by weight solids content and rich in the halophthalic anhydride by constantly monitoring the reaction mixture using analytical methods such as high performance liquid chromatography. The product mixture may be directly employed in the direct preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

    摘要翻译: 通过在至少150℃的温度下在至少一种二胺化合物和至少一种卤代邻苯二甲酸酐之间的反应中,在酰亚胺化的存在下,在有机液体如邻二氯苯或苯甲醚中混合制备双(卤代邻苯二酰亚胺) 催化剂。 通过使用诸如高效液相色谱法的分析方法不断监测反应混合物,将反应混合物保持在约15重量%的固体含量并富含卤代邻苯二甲酸酐。 产物混合物可以直接用于直接制备聚醚酰亚胺,并且可以使用类似的浆料来制备其它聚醚聚合物。

    Method for producing polyether polymers
    6.
    发明授权
    Method for producing polyether polymers 有权
    聚醚聚合物的制备方法

    公开(公告)号:US07125954B2

    公开(公告)日:2006-10-24

    申请号:US11044942

    申请日:2005-01-27

    IPC分类号: C08F6/00

    CPC分类号: C08G65/4093

    摘要: A method of making a polyether polymer comprises reacting a salt of a dihydroxy-substituted aromatic hydrocarbon with a substituted aromatic compound of formula (I) Z(A1—X1)2   (I) in the presence of a catalyst to form an intermediate polymer having endgroups, wherein the molar ratio of the salt of a dihydroxy-substituted aromatic hydrocarbon to the substituted aromatic compound is less than 1, Z is an activating radical, A1 is an aromatic radical and X1 is fluoro, chloro, bromo or nitro; determining the additional amount of the salt of a dihydroxy-substituted aromatic hydrocarbon needed to form a final polyether polymer with a predetermined molecular weight and adding the additional amount of the salt of a dihydroxy-substituted aromatic hydrocarbon to the intermediate polymer.

    摘要翻译: 一种制备聚醚聚合物的方法包括使二羟基取代的芳族烃的盐与式(I)的取代的芳族化合物反应<?在线公式描述=“在线配方”中的结果=“铅”→> Z(A 1 - 1 - 1)2 2(I)<?in-line-formula description =“In-line Formulas”end = 在催化剂存在下形成具有端基的中间体聚合物,其中二羟基取代的芳族烃与取代的芳族化合物的盐的摩尔比小于1,Z为活化基团,A 1是一个芳基,X 1是氟,氯,溴或硝基; 确定形成具有预定分子量的最终聚醚聚合物所需的二羟基取代的芳烃的盐的额外量,并向中间体聚合物中加入额外量的二羟基取代的芳族烃的盐。

    Method for preparation of salts of hydroxy-substituted aromatic compounds
    8.
    发明授权
    Method for preparation of salts of hydroxy-substituted aromatic compounds 有权
    羟基取代芳族化合物的盐的制备方法

    公开(公告)号:US07902407B2

    公开(公告)日:2011-03-08

    申请号:US11095200

    申请日:2005-03-30

    IPC分类号: C07C39/12 C07C39/16

    CPC分类号: C07C37/66 C07C39/235

    摘要: A method for preparing a metal salt of a hydroxy-substituted aromatic compound is described. The method comprises contacting in an aqueous medium at least one hydroxy-substituted aromatic compound with a base comprising a metal cation to provide a mixture comprising water and a metal salt of said hydroxy-substituted aromatic compound. The aqueous metal salt is then contacted with a substantially water-immiscible solvent at a temperature greater than the boiling point of water at the prevailing pressure to provide a slurry comprising the metal salt of the hydroxy-substituted aromatic compound and a vapor stream comprising the water-immiscible solvent and water. The components of the vapor stream are separated using a vapor handling system comprising a partial reflux condenser to provide a water-rich component and a water immiscible solvent-rich component.

    摘要翻译: 描述了制备羟基取代的芳族化合物的金属盐的方法。 该方法包括在含水介质中使至少一种羟基取代的芳族化合物与包含金属阳离子的碱接触以提供包含水和所述羟基取代的芳族化合物的金属盐的混合物。 然后在主要压力下,在大于沸点的温度下,将水性金属盐与基本上与水不混溶的溶剂接触,以提供包含羟基取代的芳族化合物的金属盐和包含水的蒸汽流的浆料 可混溶的溶剂和水。 使用包含部分回流冷凝器的蒸汽处理系统分离蒸气流的组分以提供富含水的组分和与水不混溶的富含溶剂的组分。