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    Polyetherimide compositions, methods of manufacture, and articles formed therefrom
    2.
    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

    Applicant: Thomas Link Guggenheim ,  Roy Ray Odle ,  Farid Fouad Khouri

    Inventor： Thomas Link Guggenheim ,  Roy Ray Odle ,  Farid Fouad Khouri

    IPC: C08G73/10

    CPC classification number: C08G73/1021 ,  C08G73/1046 ,  C08G73/1053 ,  C08G73/1071

    Abstract: 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.

    Abstract translation: 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。

    Production of low color polyetherimides
    6.
    发明授权
    Production of low color polyetherimides 有权
    生产低色聚醚酰亚胺

    公开(公告)号：US08080671B2

    公开(公告)日：2011-12-20

    申请号：US12196479

    申请日：2008-08-22

    Applicant: Thomas L. Guggenheim ,  Roy Ray Odle ,  Karthik Venkataraman

    Inventor： Thomas L. Guggenheim ,  Roy Ray Odle ,  Karthik Venkataraman

    IPC: C07D209/48

    CPC classification number: C07D209/48 ,  C08G73/1046 ,  C08G73/1071

    Abstract: 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.

    Abstract translation: 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。

    Methods for preparing oxydiphthalic anhydrides, oxydiphthalic anhydrides prepared thereby, and polyetherimides derived therefrom
    7.
    发明授权
    Methods for preparing oxydiphthalic anhydrides, oxydiphthalic anhydrides prepared thereby, and polyetherimides derived therefrom 有权
    制备氧联二邻苯二甲酸酐的方法，由此制备的氧联二邻苯二甲酸酐和由其衍生的聚醚酰亚胺

    公开(公告)号：US07674920B2

    公开(公告)日：2010-03-09

    申请号：US12058331

    申请日：2008-03-28

    Applicant: Beatriz Penalver Bernabe ,  Lioba Maria Kloppenburg ,  Matt Kuhlman ,  Roy Ray Odle ,  Eric Pressman ,  Narayan Ramesh ,  Harpreet Singh

    Inventor： Beatriz Penalver Bernabe ,  Lioba Maria Kloppenburg ,  Matt Kuhlman ,  Roy Ray Odle ,  Eric Pressman ,  Narayan Ramesh ,  Harpreet Singh

    IPC: C07D307/89

    CPC classification number: C07D307/88 ,  C07D307/89 ,  C08G73/1046

    Abstract: A method for preparing an oxydiphthalic anhydride comprises contacting, under reactive and substantially anhydrous conditions in a reactor, at least one halophthalic anhydride containing more than 250 ppm chlorophthalide impurity with a carbonate of the formula M2CO3, wherein M is an alkali metal, in the presence of a catalytic proportion of at least one phase transfer catalyst selected from the group consisting of hexaalkylguanidinium halides and alpha,omega-bis(pentaalkylguanidinium)alkane salts, phosphonium salts, phosphazenium salts, pyridinium salts, phosphazenium salts, ammonium salts, and combinations thereof. The phase transfer catalyst is present in a sufficient amount to prepare the oxydiphthalic anhydride when the chlorophthalide is present in an amount that is more than 250 ppm, and the oxydiphthalic anhydride is produced in a yield, based on the carbonate, of at least 70%.

    Abstract translation: 一种制备氧联二邻苯二甲酸酐的方法包括在反应器和反应性基本上无水的条件下，在反应器中使至少一种含有多于250ppm氯酞酸盐杂质的卤代邻苯二甲酸酐与式M2CO3的碳酸酯（其中M为碱金属）在存在下 选自六烷基卤化镓和α，ω-双（五烷基胍）烷烃盐，鏻盐，磷氮烯基鏻盐，吡啶鎓盐，磷氮烯基鏻盐，铵盐及其组合的至少一种相转移催化剂的催化剂比例。 当氯代苯酞以250ppm以上的量存在时，相转移催化剂的存在量足以制备氧联二邻苯二甲酸酐，并且基于碳酸酯的产率以氧化邻苯二甲酸酐的产率为至少70％ 。

    Process for preparing BIS(ether anhydrides) using alkylamine derived bisimides having low melting temperature
    9.
    发明授权
    Process for preparing BIS(ether anhydrides) using alkylamine derived bisimides having low melting temperature 失效
    使用具有低熔融温度的烷基胺衍生双酰亚胺制备BIS（醚酐）的方法

    公开(公告)号：US5936099A

    公开(公告)日：1999-08-10

    申请号：US964032

    申请日：1997-11-04

    Applicant: Brent Dellacoletta ,  Roy Ray Odle ,  Thomas L. Guggenheim ,  Ronald A. Greenberg ,  James P. Barren ,  Joseph A. King ,  Sunita Singh Baghel ,  Deborah A. Haitko ,  David G. Hawron

    Inventor： Brent Dellacoletta ,  Roy Ray Odle ,  Thomas L. Guggenheim ,  Ronald A. Greenberg ,  James P. Barren ,  Joseph A. King ,  Sunita Singh Baghel ,  Deborah A. Haitko ,  David G. Hawron

    IPC: C07D209/48 ,  C07D307/89 ,  C07D209/12

    CPC classification number: C07D209/48 ,  C07D307/89

    Abstract: A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48 to 250.degree. C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.

    Abstract translation: 制备双（醚酐）的方法使用具有低熔融温度的烷基胺，从而允许制备双（醚酐）的新的中间方法步骤。 烷基胺具有含有至少三个碳原子的烷基，并且在大气压下具有在48至250℃范围内的沸点温度。 作为使用这些胺的结果，液体烷基胺现在可用于酰亚胺化工艺步骤。 从本发明回收的酰亚胺化产物制备的N-烷基硝基邻苯二酰亚胺现在可以使用液/液萃取或真空蒸馏来纯化。 根据本发明制备的烷基硝基邻苯二酰亚胺提供了现在可以以高固体含量运行的置换反应。 同样，交换反应可以在更高的固体含量下进行，从而达到高于常规方法的效率水平。

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