INTEGRATED COPOLYETHER GLYCOL MANUFACTURING PROCESS
    81.
    发明公开
    INTEGRATED COPOLYETHER GLYCOL MANUFACTURING PROCESS 有权
    一体化共聚乙二醇制造工艺

    公开(公告)号:EP2513195A1

    公开(公告)日:2012-10-24

    申请号:EP10838031.2

    申请日:2010-01-12

    IPC分类号: C08G65/20 C08G65/28 C08G65/30

    摘要: The present invention relates to an improved, fully-integrated continuous process of enhanced process operability for manufacturing copolyether glycols having enhanced physical properties by polymerization of a reaction mixture comprising tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. The copolyether glycols manufactured by the present process have enhanced physical properties of increased alkylene oxide incorporation, average molecular weight and polydispersity, as well as reduced crystallinity, color, oligomeric cyclic ether content, and linear oligomer having an average molecular weight of up to about 400 dalton content.

    摘要翻译: 本发明涉及一种改进的完全整合的连续工艺,其通过在酸催化剂存在下聚合包含四氢呋喃和至少一种烯化氧的反应混合物而具有增强的物理性质的共聚醚二醇, 含有活性氢原子的化合物。 通过本发明方法制造的共聚醚二醇具有提高的烯化氧结合物的物理性质,平均分子量和多分散性,以及降低的结晶度,颜色,低聚环醚含量和平均分子量高达约400的直链低聚物 道尔顿含量。

    Process for preparing aminobenzoate esters
    85.
    发明公开
    Process for preparing aminobenzoate esters 有权
    Verfahren zur Herstellung von Aminobenzoatestern

    公开(公告)号:EP2028177A1

    公开(公告)日:2009-02-25

    申请号:EP08161171.7

    申请日:2008-07-25

    IPC分类号: C07C227/14

    摘要: The present invention herein provides a process for making an aminobenzoate ester of an alcoholic organic compound. In one aspect, there is provided a process for making an aminobenzoate ester comprising the steps of: (a) providing a reaction mixture comprising an alkyl aminobenzoate an alcohol reagent and a suitable transesterification catalyst; (b) introducing an auxilliary alcohol to the reaction mixture; and (c) exposing the reaction mixture to conditions effective to provide an end-product mixture comprising the aminobenzoate ester.

    摘要翻译: 本发明提供了制备醇有机化合物的氨基苯甲酸酯的方法。 一方面,提供一种制备氨基苯甲酸酯的方法,包括以下步骤:(a)提供包含烷基氨基苯甲酸酯与醇试剂和合适的酯交换催化剂的反应混合物; (b)将辅助醇引入反应混合物中; 和(c)将反应混合物暴露于有效提供包含氨基苯甲酸酯的最终产物混合物的条件下。

    POLYOXYTETRAMETHYLENE GLYCOL AND PROCESS FOR PRODUCING THE SAME
    90.
    发明授权
    POLYOXYTETRAMETHYLENE GLYCOL AND PROCESS FOR PRODUCING THE SAME 有权
    聚氧及其制造方法

    公开(公告)号:EP1219658B1

    公开(公告)日:2006-01-11

    申请号:EP00953515.4

    申请日:2000-08-18

    IPC分类号: C08G65/20 C08G65/26

    摘要: A polyoxytetramethylene glycol (PTMG) with improved heat resistance and low-viscosity characteristics which has the following properties (1) to (4): (1) the number-average molecular weight is 500 to 3,000; (2) the molecular-weight distribution which is the ratio of the weight-average molecular weight Mw to the number-average molecular weight Mn, Mw/Mn, is 1.8 or less; (3) the content of PTMG molecules having a molecular weight at least 6 times the number-average molecular weight is 2 to 5 wt.% based on the total amount of all the PTMG molecules; and (4) the content of heteropolyacids is 10 to 900 ppb by weight.