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    Preparation of macrocyclic polyetherimide oligomers from substituted bisphthalimides
    57.
    发明授权
    Preparation of macrocyclic polyetherimide oligomers from substituted bisphthalimides 失效
    从取代的双苯二酰亚胺制备大环聚醚酰亚胺低聚物

    公开(公告)号：US5514813A

    公开(公告)日：1996-05-07

    申请号：US341815

    申请日：1994-11-18

    申请人： Daniel J. Brunelle

    发明人： Daniel J. Brunelle

    IPC分类号： C07D498/08 ,  B01J31/02 ,  C07B61/00 ,  C08G73/12 ,  C07D209/48

    CPC分类号： C08G73/12

    摘要： Macrocyclic polyetherimide oligomer compositions are prepared by the reaction of an alkali metal salt of a dihydroxyaromatic compound, preferably of bisphenol A, with a substituted bis-phthalimide, typically a chloro-, fluoro- or nitro-substituted o- or m-phenylene bis-phthalimide. The reaction takes place in a substantially non-polar solvent such as o-dichlorobenzene and at temperatures in the range of about 180.degree.-225.degree. C. in the presence of a phase transfer catalyst which is stable at such temperatures, such as a guanidinium salt. The concentration of phase transfer catalyst is such as to maintain the alkali metal salt at high dilution in the solvent, and the substituted bis-phthalimide is preferably also maintained at high dilution by portionwise addition.

    摘要翻译： 大环聚醚酰亚胺低聚物组合物通过二羟基芳族化合物的碱金属盐，优选双酚A与取代的双 - 邻苯二甲酰亚胺（通常为氯，氟或硝基取代的邻 - 或间 - 亚苯基双 - 邻苯二甲酰亚胺。 反应在基本上非极性的溶剂如邻二氯苯中进行，在约180-225℃的温度下，在这种温度下稳定的相转移催化剂存在下进行，例如胍 盐。 相转移催化剂的浓度使得在溶剂中保持高稀释度的碱金属盐，并且优选通过分批加入保持高度稀释的取代的双邻苯二甲酰亚胺。

    Macrocyclic polyester oligomer preparation with Lewis acid as catalyst
    59.
    发明授权
    Macrocyclic polyester oligomer preparation with Lewis acid as catalyst 失效
    以路易斯酸为催化剂的大环聚酯低聚物制备

    公开(公告)号：US5321117A

    公开(公告)日：1994-06-14

    申请号：US978583

    申请日：1992-11-19

    申请人： Daniel J. Brunelle

    发明人： Daniel J. Brunelle

    IPC分类号： C08G63/78 ,  C07D323/00 ,  C08G63/16 ,  C08G63/40 ,  C08G63/82 ,  C08G63/02

    CPC分类号： C08G63/82 ,  C07D323/00 ,  C08G63/40

    摘要： Macrocyclic poly(alkylene dicarboxylate) oligomers are prepared by the reaction of a dicarboxylic acid chloride such as terephthaloyl chloride with at least one bis(hydroxyalkyl) ester such as bis(4-hydroxybutyl) terephthalate, in the presence of a Lewis acid as catalyst. Illustrative Lewis acids are ferric chloride, zinc chloride, zinc bromide, stannous bromide and antimony pentachloride.

    摘要翻译： 通过二茂酰氯如对苯二甲酰氯与至少一种双（羟烷基）酯如双（4-羟丁基）对苯二甲酸酯在路易斯酸作为催化剂的存在下反应来制备大环聚（亚烷基二羧酸酯）低聚物。 说明性的路易斯酸是氯化铁，氯化锌，溴化锌，溴化亚锡和五氯化锑。

    Method for preparation of macrocyclic poly(alkylene dicarboxylate) oligomers
    60.
    发明授权
    Method for preparation of macrocyclic poly(alkylene dicarboxylate) oligomers 失效
    制备大环聚（亚烷基二羧酸酯）低聚物的方法

    公开(公告)号：US5214158A

    公开(公告)日：1993-05-25

    申请号：US709256

    申请日：1991-06-03

    申请人： Daniel J. Brunelle ,  Jean E. Bradt

    发明人： Daniel J. Brunelle ,  Jean E. Bradt

    IPC分类号： C08G63/40 ,  C08G63/87

    CPC分类号： C08G63/87 ,  C08G63/40

    摘要： Macrocyclic polyester oligomer compositions comprising alkylene isophthalate or terephthalate units or the like are prepared by the reaction of a diol with a diacid chloride in the presence of a catalytic amount of at least one amine characterized by substantially no steric hindrance around the basic nitrogen atom, and an acid accepting amount of at least one other tertiary amine such as triethylamine. The reaction is conducted under substantially anhydrous conditions.

    摘要翻译： 包含亚烷基间苯二甲酸酯或对苯二甲酸酯单元等的大环聚酯低聚物组合物通过二醇与二酰氯在催化量的至少一种胺的存在下反应而制备，其特征在于在碱性氮原子周围基本上没有空间位阻， 酸接受量的至少一种其他叔胺如三乙胺。 反应在基本无水条件下进行。