PRODUCTION OF LOW COLOR POLYETHERIMIDES
    3.
    发明申请
    PRODUCTION OF LOW COLOR POLYETHERIMIDES 有权
    低颜料聚乙二醇的生产

    公开(公告)号:US20090292128A1

    公开(公告)日:2009-11-26

    申请号:US12196479

    申请日:2008-08-22

    IPC分类号: C07D209/48

    摘要: The production of low color polyetherimides, including its intermediates, such as bisimides and diaryl diether dianhydrides, may be affected by producing an improved purity intermediate of 4-nitro-N-alkylphthalimide. A salt, such as alkali metal carbonate or alkali metal hydrogen carbonate, is added to an aqueous mixture of 4-nitro-N-alkylphthalimide and 3-nitro-N-alkylphthalimide to selectively hydrolyze the imide linkage of 3-nitro-N-alkylphthalimide forming a water-soluble acid-amide salt. An organic solvent is added to this salt mixture to phase separate 4-nitro-N-alkylphthalimide having dissolved in the organic solvent from acid-amide salt of 3-nitro-N-alkylphthalimide having dissolved in water.

    摘要翻译: 通过生产4-硝基-N-烷基邻苯二甲酰亚胺的改进的纯度中间体,可以影响低色度聚醚酰亚胺(包括其中间体,如双酰亚胺和二芳基二醚二酸酐)的生产。 将诸如碱金属碳酸盐或碱金属碳酸氢盐的盐加入4-硝基-N-烷基邻苯二甲酰亚胺和3-硝基-N-烷基邻苯二甲酰亚胺的水性混合物中以选择性水解3-硝基-N-烷基邻苯二甲酰亚胺的酰亚胺键 形成水溶性酸 - 酰胺盐。 向该盐混合物中加入有机溶剂,将溶解在有机溶剂中的4-硝基-N-烷基邻苯二甲酰亚胺溶解在溶解于水中的3-硝基-N-烷基邻苯二甲酰亚胺的酰胺盐相。

    Polyetherimide compositions, methods of manufacture, and articles formed therefrom
    4.
    发明授权
    Polyetherimide compositions, methods of manufacture, and articles formed therefrom 有权
    聚醚酰亚胺组合物,制造方法和由其形成的制品

    公开(公告)号:US09127127B2

    公开(公告)日:2015-09-08

    申请号:US13649443

    申请日:2012-10-11

    IPC分类号: C08G73/10

    摘要: A method for the manufacture of a polyetherimide composition includes catalyzing the reaction of a dianhydride and an organic diamine with a catalyst selected from guanadinium salts, pyridinium salts, imidazolium salts, tetra(C6-24)aryl ammonium salts, tetra(C7-24 arylalkylene) ammonium salts, dialkyl heterocycloaliphatic ammonium salts, bis-alkyl quaternary ammonium salts, (C7-24arylalkylene)(C1-16alkyl) phosphonium salts, (C6-24aryl)(C1-16alkyl)phosphonium salts, phosphazenium salts and combinations thereof, optionally in the presence of a solvent.

    摘要翻译: 制备聚醚酰亚胺组合物的方法包括用选自胍盐,吡啶鎓盐,咪唑鎓盐,四(C 6-24)芳基铵盐,四(C 7-24芳基亚烷基)烷基的催化剂催化二酐和有机二胺的反应 )铵盐,二烷基杂环脂族铵盐,双烷基季铵盐,(C 7-24芳基亚烷基)(C 1-6烷基)鏻盐,(C 6-24芳基)(C 1-6烷基)鏻盐,磷氮烯基鏻盐及其组合, 溶剂的存在。

    POLY(ARYL ETHER SULFONE) COMPOSITION, AND METHOD OF MAKING
    9.
    发明申请
    POLY(ARYL ETHER SULFONE) COMPOSITION, AND METHOD OF MAKING 有权
    POLY(ARYL ETHER SUFFONE)组合物及其制备方法

    公开(公告)号:US20130109831A1

    公开(公告)日:2013-05-02

    申请号:US13285043

    申请日:2011-10-31

    IPC分类号: C08G75/23

    摘要: A poly(aryl ether sulfone) comprises units of formula (I): wherein Ar1 is a divalent C6-C15 aromatic group, Ar2 is a divalent C6-C15 aromatic group, Ar3 is a divalent C6-C15 aromatic group, and n is greater than 1; and a terminal group of formula (II) derived from a monofunctional phenoxide wherein is X is a hydrogen atom or an organic substituent having from 1 to 20 carbon atoms; wherein the poly(aryl ether sulfone) has a hydroxyl group content greater than 0 and less than 50 parts per million (ppm), based on the poly(aryl ether sulfone) weight, a glass transition temperature of 180 to 290° C., a weight average molecular weight of 20,000 to 100,000, a halogen content of greater than 0 and less than 3000 ppm based on the poly(aryl ether sulfone) weight. The poly(aryl ether sulfone) is free of methoxy groups.

    摘要翻译: 聚(芳基醚砜)包括式(I)的单元:其中Ar1是二价C 6 -C 15芳族基团,Ar 2是二价C 6 -C 15芳族基团,Ar 3是二价C 6 -C 15芳族基团,n大于 比1; 和衍生自单官能酚盐的式(II)的末端基团,其中X为氢原子或具有1至20个碳原子的有机取代基; 其中聚(芳基醚砜)的羟基含量大于0且小于50ppm(ppm),基于聚(芳基醚砜)重量,玻璃化转变温度为180-290℃, 重均分子量为20,000至100,000,卤素含量大于0且小于3000ppm,基于聚(芳基醚砜)重量。 聚(芳基醚砜)不含甲氧基。