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    • 4. 发明申请
      WO2010006834A3 THERMAL SALT-SPLITTING OF AMMONIUM SALTS OF HYDROXYCARBOXYLATES 审中-公开
    • THERMAL SALT-SPLITTING OF AMMONIUM SALTS OF HYDROXYCARBOXYLATES
    • 羟基聚铵盐的热盐裂
    • WO2010006834A3
    • 2010-03-18
    • PCT/EP2009056402
    • 2009-05-27
    • EVONIK ROEHM GMBH , HAAS THOMAS , TACKE THOMAS , SCHRAVEN ALEXANDER , SCHLEEF HANS-JOACHIM , ZEHNACKER OLIVIER
    • HAAS THOMAS , TACKE THOMAS , SCHRAVEN ALEXANDER , SCHLEEF HANS-JOACHIM , ZEHNACKER OLIVIER
    • C07C51/02 , C07C59/01
    • C07C51/02 , C07C59/01
    • The invention relates to a method for producing hydroxycarboxylic acids, preferably a- and ß- hydroxycarboxylic acids, from ammonium carboxylates of general formula (I), wherein R1, R2 and R3 are independently H, OH, (C1-C6)-alkyl optionally substituted with a hydroxyl group, (C1-C6)-alkenyl optionally substituted with a hydroxyl group, (C1-C6)-alkoxy optionally substituted with a hydroxyl group, (C1-C6)-alkylthio-(C1-C6)-alkyl optionally substituted with a hydroxyl group, (C6-C10)-aryl optionally substituted with a hydroxyl group, (C7-C12)-aralkyl optionally substituted with a hydroxyl group, (C3-C5)-heteroaryl optionally substituted with a hydroxyl group, on the proviso that at least one hydroxyl group is contained in at least one radical R1, R2 and R3, preferably R1 = H, CH3, CH2CH3, C6H5, (CH2)2SCH3 and R2 = H, CH3 and R3 = OH, equally preferably R1 = CH2OH, CHOHCH3 and R2 = R3 = H, CH3, especially preferably R1 = R2 = CH3 and R3 = OH, equally especially preferably R1 = CH2OH, R2 = CH3 and R3 = H. Said method comprises the following steps: an aqueous starting solution containing the ammonium carboxylate is heated, the hydroxycarboxylic acid and ammonia being formed by thermal decomposition of the ammonium carboxylate and at least part of the free water and the formed ammonia being removed from the solution at the same time, thereby obtaining a product fraction containing the hydroxy carboxylic acid. Said method is characterised in that the content of the ammonium salt in the starting solution is less than 60 wt. %, and the thermal decomposition of the ammonium salt and the removal of the free water and formed ammonia are carried out in a method step, the turnover of the ammonium salt being more than 20 mol%, preferably more than 30 mol%, preferably more than 50 mol%, especially preferably more than 75 mol%, specifically preferably more than 90 mol%, and especially more than 95 mol%, and neither ether, alcohol or hydrocarbon is used as an entrainer.
    • 本发明由通式（I）其中R1，R2和R3独立地为H，OH，任选被羟基取代的的羧酸铵涉及一种方法，用于生产羟基羧酸，优选的α-和β-羟基羧酸（C1-C6） 烷基，其任选被羟基取代的（C1-C6） - 烯基，任选被羟基（C1-C6）取代的烷氧基任选地用羟基取代的（C1-C6）烷硫基（C1-C6）烷基 ，任选被羟基取代的（C6-C10）芳基，任选被取代的（C7-C12）羟基取代的芳烷基任选地被取代的（C3-C5） - 杂芳基的羟基取代的，条件是至少一个羟基基团中的至少 为基团R1，R2和R3包括，优选R 1 = H，CH 3，CH 2 CH 3，C 6 H 5，（CH 2）2 SCH 3，且R 2 = H，CH 3，且R 3 = OH，同样优选的R 1 = CH 2 OH，和CHOHCH3 R2 = R 3 = H，CH 3，最优选R1 = R2 = CH3和R3 = OH，同样更优选R1 = CH 2 OH，R 2 = CH 3且R 3 = H，意思是，包括以下步骤：加热含有羧酸铵，其特征在于通过热的初始水溶液 羧酸铵的分解，羟基羧酸和氨形成，并在同一时间至少游离水的一部分，并且形成有从溶液中取出，并由此含有获得羟基羧酸产物馏分，其特征在于所述氨，在起始溶液中铵盐的含量为小于60 重量％，则进行的铵盐的热分解和去除游离水的并且形成在一个工艺步骤中的氨，其特征在于，超过20摩尔％，优选多于30摩尔％，优选大于50摩尔％的铵盐的转化 ，更优选大于75摩尔％，非常特别优选地 超过90摩尔％，特别是大于95摩尔％，并且不醚，醇或烃类被用作夹带剂。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 10. 发明申请
      WO2005097443A3 METHOD FOR IMPREGNATING SOLID WOOD 审中-公开
    • METHOD FOR IMPREGNATING SOLID WOOD
    • 方法用于浸渍实木
    • WO2005097443A3
    • 2006-04-13
    • PCT/EP2005051540
    • 2005-04-07
    • SASOL WAX GMBH , FRICK THORSTEN , HAAS THOMAS , MATTHAEI MICHAEL
    • FRICK THORSTEN , HAAS THOMAS , MATTHAEI MICHAEL
    • B27K3/08 , B27K3/34 , B27K3/36
    • B27K3/36 , B27K3/08 , B27K5/001
    • The invention relates to a method for pressure-impregnating wood with an impregnating agent that is at least partially liquid under the effect of pressure, especially paraffin. The aim of the invention is to achieve a high weathering and aging resistance while maintaining the strength and elasticity of the wood. According to the invention, the impregnating agent comprises a mixture of paraffin and/or waxes having different chain length and molecular size including not more than 5 % of water. The paraffins or waxes as components of the mixture are selected such that they are at least partially solid at ambient temperature and liquefy at least partially only at substantially higher temperatures, at least above 50° C. Alternatively, a mass is used as the impregnating agent that is completely liquid at least with respect to its base component paraffin or wax when the impregnation is carried out, at a temperature of 50 °C or more, and said paraffin or wax is selected such that it is solid at a temperature below 50 °C.
    • 本发明涉及一种用于当施加压力时的浸渍剂，特别是石蜡压力下与至少部分液体浸渍木材的方法。 为了获得风化和老化，同时尽可能保持木材的强度和弹性的高的电阻，本发明建议，作为浸渍剂的链烷烃和/或不同的链长和分子大小的蜡的混合物含水使用小于5％， 其中所述链烷烃或蜡被用作混合物的一部分被选择为使得它们在环境温度下至少部分抗性，并且至少部分仅在显著较高的温度下，至少约50℃，液体，或该组合物用作浸渍剂， 其具有50℃或更高的温度下进行浸渍，给出在任何情况下，当在他们的基础组分的石蜡或蜡的方面完全液态，并选择此石蜡或蜡，以便它是固体在低于50℃的温度下 ，
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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