Method for preparing 2,6-Naphtalene dicarboxyclic acid
    3.
    发明公开
    Method for preparing 2,6-Naphtalene dicarboxyclic acid 审中-公开
    Verfahren zur Herstellung von萘-2,6-Dicarbonsaure

    公开(公告)号:EP1591435A2

    公开(公告)日:2005-11-02

    申请号:EP05006639.8

    申请日:2005-03-24

    IPC分类号: C07C51/09 C07C63/38

    CPC分类号: C07C51/09 C07C63/38

    摘要: Disclosed is an improved method for preparing 2,6-naphthalene dicarboxylic acid from di-lower alkyl 2,6-naphthalene dicarboxylate, which is characterized in that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specified amount of water in the presence of specified amount of hydrophobic organic solvent and an additive; that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specific amount of a mixed solvent of non-water miscible alcohol and water; or in that di-lower alkyl 2,6-naphthalene dicarboxylate is hydrolyzed in two steps wherein the 1st step comprises hydrolyzing said ester in a water miscible organic solvent in the presence of a small amount of water, and the 2nd step comprises further hydrolyzing the reaction.

    摘要翻译: 本发明公开了一种从2,6-二萘基二羧酸二低级烷基酯制备2,6-萘二甲酸的改进方法,其特征在于将2,6-二羧酸二低级烷基酯在规定量的水中 存在规定量的疏水性有机溶剂和添加剂; 在特定量的非水混溶性醇和水的混合溶剂中水解2,6-萘二甲酸二低级烷基酯; 或者在2,6-二羧酸二烷基酯二水合物的两个步骤中水解,其中第一步包括在少量水存在下在水混溶性有机溶剂中水解所述酯,第二步包括进一步水解 反应。

    PROCESS FOR PRODUCTION OF HYDROXYBENZOIC ACIDS
    4.
    发明公开
    PROCESS FOR PRODUCTION OF HYDROXYBENZOIC ACIDS 审中-公开
    生产羟基苯甲酸的方法

    公开(公告)号:EP1559705A1

    公开(公告)日:2005-08-03

    申请号:EP03799169.2

    申请日:2003-09-30

    IPC分类号: C07C51/15 C07C65/03

    摘要: The present invention provides a method for producing a hydroxybenzoic acid compound comprising, dehydrating a phenol compound and an alkaline metal compound to form the alkaline metal salt of the phenol compound and reacting the alkaline metal salt and carbon dioxide, wherein the dehydrating step is conducted by reacting the alkaline metal compound with an excess amount of the phenol compound at a temperature of 160°C or above. According to the method of the present invention, the hydroxybenzoic acid compound can be obtained by simple steps with low cost without using an expensive aprotic polar organic solvent. The provided method can produce highly pure hydroxybenzoic acid compound comprising little by-products in high yield.

    摘要翻译: 本发明提供生产羟基苯甲酸化合物的方法,包括使酚化合物和碱金属化合物脱水以形成酚化合物的碱金属盐并使碱金属盐和二氧化碳反应,其中脱水步骤通过 碱金属化合物与过量的酚化合物在160℃或更高的温度下反应。 根据本发明的方法,羟基苯甲酸化合物可以通过简单的步骤以低成本获得,而不使用昂贵的非质子极性有机溶剂。 所提供的方法可以以高产率生产包含很少副产物的高纯度羟基苯甲酸化合物。

    LIQUID-CRYSTAL POLYESTER RESIN
    6.
    发明公开
    LIQUID-CRYSTAL POLYESTER RESIN 有权
    FLÜSSIGKRISTALLIN-POLYESTERHARZ

    公开(公告)号:EP1462468A1

    公开(公告)日:2004-09-29

    申请号:EP02781831.9

    申请日:2002-11-25

    IPC分类号: C08G63/02

    摘要: The present invention provides a liquid-crystalline polyester resin which comprises monomer units derived from 2-hydroxy-3-naphthoic acid and/or 2-hydroxynaphthalene-3,6-dicarboxylic acid in an amount of 1-5000 mmol % based on the total monomer components of the resin and an alkaline metal compound in an amount of 10-3000 ppm as alkaline metal based on the total monomer components of the resin. The liquid-crystalline polyester resin of the present invention has good colorability, improved heat resistance and good mechanical properties.

    摘要翻译: 本发明提供一种液晶聚酯树脂,其包含基于总量为1-5000mmol%的来源于2-羟基-3-萘甲酸和/或2-羟基萘-3,6-二羧酸的单体单元 树脂的单体组分和碱金属化合物的量为基于树脂总单体成分的碱金属为10-3000ppm。 本发明的液晶聚酯树脂具有良好的着色性,耐热性和良好的机械性能。

    GRANULE OF PARAHYDROXYBENZOIC ACID OR PARAHYDROXYBENZOIC ESTER AND PROCESS FOR PRODUCING THE SAME
    9.
    发明公开
    GRANULE OF PARAHYDROXYBENZOIC ACID OR PARAHYDROXYBENZOIC ESTER AND PROCESS FOR PRODUCING THE SAME 有权
    玉米淀粉酵母素衍生物对苯二甲酸苄酯

    公开(公告)号:EP1380563A1

    公开(公告)日:2004-01-14

    申请号:EP02720482.5

    申请日:2002-04-18

    IPC分类号: C07C65/03 C07C69/84

    CPC分类号: C07C65/03 C07C69/88

    摘要: Granular product of parahydroxybenzoic acid or its ester which exhibits well suppressed dusting and caking tendency and a process for preparing the product are provided. The granular product of parahydroxybenzoic acid or its ester according to the instant invention has an average particle size of equal to or more than 150µm and a hardness of 10-3000 g. The granular product of the invention can be prepared by dry compressing powdery parahydroxybenzoic acid or its ester to give compressed material, pulverizing and classifying the material.

    摘要翻译: 提供了显示良好抑制粉尘和结块倾向的对羟基苯甲酸或其酯的颗粒产物和制备该产品的方法。 本发明的对羟基苯甲酸或其酯的粒状产物的平均粒径为150μm以上,硬度为10〜3000g。 本发明的颗粒产品可以通过干燥压制粉末状的对羟基苯甲酸或其酯来制备,得到压缩的材料,粉碎和分级材料。

    Alpha-D-glucopyranosyl-1,6-sorbitol comprising dough for foam baked product and process for manufacturing the same
    10.
    发明公开
    Alpha-D-glucopyranosyl-1,6-sorbitol comprising dough for foam baked product and process for manufacturing the same 无效
    α-D-吡喃葡萄糖基-1,6-山梨糖醇诱导剂TeigfürBackwaren und deren Herstellung

    公开(公告)号:EP1378168A1

    公开(公告)日:2004-01-07

    申请号:EP03014500.7

    申请日:2003-07-03

    IPC分类号: A21D2/18 A23L1/236 A21D13/08

    CPC分类号: A23L27/34 A21D2/181 A21D13/50

    摘要: Aerated dough for foam-type baked product such as sponge cake with improved foam-stability is disclosed. The improvement had been achieved by substituting at least 20 wt% of total sweeteners contained in a conventional dough for a baked product with a sugar alcohol composition comprising 55-100 wt% of α-D-glucopyranosyl-1,6-sorbitol and 45-0 wt% of α-D-glucopyranosyl-1,1-mannitol and/or α-D-glucopyranosyl-1,1-sorbitol and a mixture thereof on a dry weight basis.

    摘要翻译: 公开了用于泡沫型烘烤产品的充气面团,例如具有改善的泡沫稳定性的海绵饼。 通过将含有55-100重量%的α-D-吡喃葡萄糖基-1,6-山梨糖醇和45重量%的糖醇组合物的糖醇组合物代替至少20重量%的常规面团中含有的总甜味剂, 0重量%的α-D-吡喃葡萄糖基-1,1-甘露醇和/或α-D-吡喃葡萄糖基-1,1-山梨糖醇及其混合物。