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    • 14. 发明公开
    • PROCEDE DE PREPARATION DE COMPOSITIONS DE DIESTER(S) DE DIANHYDROHEXITOL
    • 程序DE组合物DE二酯(DE)二脱水葡萄糖
    • EP1863821A1
    • 2007-12-12
    • EP06726130.5
    • 2006-03-22
    • ROQUETTE FRERES
    • FUERTES, PatrickWYART, Hervé
    • C07D493/04
    • C07D493/04
    • The invention concerns a method for preparing a dianhydrohexitol diester composition, characterized in that it comprises a step which consists in esterifying a dianhydrohexitol composition with a carboxylic acid in the presence of an acid catalyst and hypophosphorous acid. Preferably, the hypophosphorous acid is introduced in an amount ranging between 0.05 and 2 wt. % of dianhydrohexitol, and in a hypophosphorous acid/acid catalyst weight ratio less than 1/1. Said method enables novel dianhydrohexitol diester compositions, for example isosorbide diesters, isomannide and/or isoidide richer in diester(s) and/or less coloured, useful in numerous industrial applications, in particular in plastic compositions, to be obtained.
    • 本发明涉及一种制备二脱水己糖醇二酯组合物的方法,其特征在于它包括在酸催化剂和次磷酸存在下将二脱水己糖醇组合物与羧酸酯化的步骤。 优选地,次磷酸以0.05至2wt。 %的二水合己糖醇,并且次磷酸/酸催化剂的重量比小于1/1。 所述方法使得能够新颖脱水己糖醇二酯组合物,例如异山梨醇二酯,异甘露醇和/或二酯中的(一个或多个)和/或着色少,可用于许多工业应用,特别是在塑料组合物,能够获得更丰富的异艾杜醇。
    • 15. 发明公开
    • PROCÉDÉ DE PRÉPARATION DE DI (ALKYLCARBONATE) DE DIANHYDROHEXITOL
    • VERFAHREN ZUR HERSTELLUNG EINES DIALKYLCARBONATS AUS DIANHYDROHEXITOL
    • EP2483276A1
    • 2012-08-08
    • EP10776772.5
    • 2010-09-30
    • Roquette Freres
    • FUERTES, PatrickIBERT, MathiasJOSIEN, EmilieTUNDO, PietroARICÒ, Fabio
    • C07D493/04
    • C07D493/04Y02P20/582
    • The present invention relates to a method for preparing dialkyl carbonates of dianhydrohexitol, said method including the following steps: (a) preparing an initial reaction mixture containing at least one dianhydrohexitol, at least two mole equivalents of a dialkyl carbonate of formula and a transesterification catalyst; (b) heating the reaction mixture to a temperature greater than or equal to the boiling temperature of the formed alcohol, or of the azeotrope thereof, in a reaction chamber preferably provided with a rectification column comprising a sufficient number of theoretical distillation plates to separate the resulting alcohol from the reaction mixture. The invention also relates to certain dialkyl carbonates of dianhydrohexitols produced by said method and to the use thereof for synthesising synthetic polymers.
    • 一种制备二脱水己糖醇的碳酸二烷基酯的方法包括以下步骤:(a)制备含有至少两摩尔当量二烷基碳酸酯和酯交换催化剂的至少一种二脱水己糖醇的初始反应混合物; (b)在反应室内将反应混合物加热到大于或等于所形成的醇或其共沸物的沸点的温度,反应室优选设有包括足够数量的理论蒸馏塔的精馏塔,以分离 从反应混合物中得到酒精。 还描述了通过该方法制备的二脱水己糖醇的某些二烷基碳酸酯及其用于合成合成聚合物的用途。
    • 20. 发明授权
    • Procédé de préparation de compositions de diester(s) de dianhydrohexitol
    • Procédédepréparationde composition de diester(s)de dianhydrohexitol
    • EP1863821B1
    • 2012-08-01
    • EP06726130.5
    • 2006-03-22
    • ROQUETTE FRERES
    • FUERTES, PatrickWYART, Hervé
    • C07D493/04
    • C07D493/04
    • The invention concerns a method for preparing a dianhydrohexitol diester composition, characterized in that it comprises a step which consists in esterifying a dianhydrohexitol composition with a carboxylic acid in the presence of an acid catalyst and hypophosphorous acid. Preferably, the hypophosphorous acid is introduced in an amount ranging between 0.05 and 2 wt. % of dianhydrohexitol, and in a hypophosphorous acid/acid catalyst weight ratio less than 1/1. Said method enables novel dianhydrohexitol diester compositions, for example isosorbide diesters, isomannide and/or isoidide richer in diester(s) and/or less coloured, useful in numerous industrial applications, in particular in plastic compositions, to be obtained.
    • 本发明涉及一种制备二脱水己糖醇二酯组合物的方法,其特征在于它包括在酸催化剂和次磷酸存在下将二脱水己糖醇组合物与羧酸酯化的步骤。 优选地,次磷酸以0.05至2wt。 %的二水合己糖醇,并且次磷酸/酸催化剂的重量比小于1/1。 所述方法使得能够新颖脱水己糖醇二酯组合物,例如异山梨醇二酯,异甘露醇和/或二酯中的(一个或多个)和/或着色少,可用于许多工业应用,特别是在塑料组合物,能够获得更丰富的异艾杜醇。