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    Production of alpha-chloroacrylic acid
    1.
    发明授权
    Production of alpha-chloroacrylic acid 失效
    α-氯丙酸的生产

    公开(公告)号：US3857882A

    公开(公告)日：1974-12-31

    申请号：US38775473

    申请日：1973-08-13

    Applicant: HOECHST AG

    Inventor： AUER E ,  VOGT W ,  GEHRMANN K

    IPC: C07C51/00 ,  C07C51/363 ,  C07C51/377 ,  C07C57/54 ,  C07C67/00

    CPC classification number: C07C57/54 ,  C07C51/377

    Abstract: Production of Alpha -chloroacrylic acid. Acrylic acid and chlorine gas are intimately contacted with one another and the resulting crude reaction product, which predominantly consists of 2,3-dichloropropionic acid, is separated into Alpha chloroacrylic acid and hydrogen chloride. To this end, the reaction produce is introduced into a catalyst zone heated to 80* - 160*C and containing one or more known dehydrochlorination catalysts, wherein Alpha -chloroacrylic acid is continuously distilled off under pressures between 10 and 100 mm of mercury.

    Abstract translation: 生产α-氯丙烯酸。 丙烯酸和氯气彼此紧密接触，所得粗制反应产物（主要由2,3-二氯丙酸组成）分离成α-氯丙烯酸和氯化氢。 为此，将反应产物引入加热至80-160℃的催化剂区域中，并含有一种或多种已知的脱氯化氢催化剂，其中在10至100mm汞柱之间的压力下连续蒸馏出α-氯代丙烯酸。

    Oligomers and/or polymers containing carboxylic and hydroxylic groups, and process for making them
    2.
    发明授权
    Oligomers and/or polymers containing carboxylic and hydroxylic groups, and process for making them 失效
    含羧基和羟基的低聚物和/或聚合物及其制备方法

    公开(公告)号：US3856755A

    公开(公告)日：1974-12-24

    申请号：US31665972

    申请日：1972-12-20

    Applicant: HOECHST AG

    Inventor： VOGT W ,  FISCHER E ,  AUER E

    IPC: C08F8/00 ,  B01J45/00 ,  C08F8/12 ,  C08F8/14 ,  C08F8/16 ,  C08F14/00 ,  C08F27/02 ,  C08F27/14

    CPC classification number: C08F8/16 ,  C08F220/04 ,  C08F222/06 ,  C08F8/44 ,  C08F8/12 ,  C08F222/04 ,  C08F220/06 ,  C08F222/10

    Abstract: in which X, Y and Z stand for a hydrogen and/or halogen atom with the proviso that at least one of the X, Y and Z substituents stands for a halogen atom, R stands for a carboxyhalide radical, a carboxylic group, ester group, nitrile group or anhydride group, and the mole fraction m stands for a number greater than zero and smaller than 1.

    The invention provides novel oligomers and/or polymers containing carboxylic and hydroxylic groups - the latter groups being partially lactonized, if desired - and a predominant proportion of C-C bonds in their principal chain. The oligomers and/or polymers are produced by hydrolyzing halogenated copolymers which have substantially between 5 and 60 weight % of halogen therein and a principal chain based on structural units, in any desirable sequential arrangement, of the following general formulae I and II or I and III

    Abstract translation: 本发明提供了含有羧基和羟基基团的新型低聚物和/或聚合物 - 如果需要，后者基团部分地被内酯化，并且在它们的主链中占主要比例的C-C键。 低聚物和/或聚合物通过水解基本上为5至60重量％的卤素的卤代共聚物和基于结构单元的主链，以任何所需的顺序排列，通式I和II或I和 III其中X，Y和Z代表氢和/或卤素原子，条件是X，Y和Z取代基中的至少一个代表卤素原子，R代表羧基，羧基，酯 基团，腈基或酸酐基，摩尔分数m表示大于零且小于1的数。

    5.
    发明专利
    未知

    公开(公告)号：DK139438B

    公开(公告)日：1979-02-19

    申请号：DK470872

    申请日：1972-09-22

    Applicant: HOECHST AG

    Inventor： KANDLER J ,  MERKENICH K ,  HENNING K ,  VOIGT W ,  AUER E ,  GLASER H

    IPC: C11D3/00 ,  C11D3/20

    Abstract: 1397957 Detergents containing builders HOECHST AG 14 Sept 1972 [24 Sept 1971] 42706/72 Heading C5D [Also in Division C2] Builders for detergent and cleansing agents comprise water-soluble salts of acid carboxylic acid esters prepared by reacting at least trivalent, 6-10C, aliphatic olefinically unsaturated carboxylic acids or hydroxy-carboxylic acids with aliphatic alcohols (3-6 OH groups), and in which each hydroxylic group of the alcohol and optionally the hydroxycarboxylic acid is esterified with a carboxylic acid molecule. Citric, aconitic, tricarballylic, dihydroxy-tricarballylic, nitrotriacetic and ethylenediamine-tetracetic acids may be used with glycerol, erythritol, pentaerythritol, mannitol, sorbitol or sugar alcohol (4-6 C) and the salts are of alkali metal or ammonium ion. A proportion of 10-80% by weight of salts may be used and then ion-active and/or non-ionic tensides and further conventional additives may be present. Examples describe the use of builders prepared from glycerol, sorbitol or pentaerythritol with nitric acid used with dodecylbenzene sulphonate, tallow fatty alcohol and hardened tallow soap, and also with additional magnesium silicate, sodium silicate, sodium perborate, sodium sulphate and tylose in detergent wash liquors.

    6.
    发明专利
    未知

    公开(公告)号：SE399906B

    公开(公告)日：1978-03-06

    申请号：SE1227872

    申请日：1972-09-22

    Applicant: HOECHST AG

    Inventor： KANDLER J ,  MERKENICH K ,  HENNING K ,  VOGT W ,  AUER E ,  GLASER H

    IPC: C11D3/00 ,  C11D3/20

    Abstract: 1397957 Detergents containing builders HOECHST AG 14 Sept 1972 [24 Sept 1971] 42706/72 Heading C5D [Also in Division C2] Builders for detergent and cleansing agents comprise water-soluble salts of acid carboxylic acid esters prepared by reacting at least trivalent, 6-10C, aliphatic olefinically unsaturated carboxylic acids or hydroxy-carboxylic acids with aliphatic alcohols (3-6 OH groups), and in which each hydroxylic group of the alcohol and optionally the hydroxycarboxylic acid is esterified with a carboxylic acid molecule. Citric, aconitic, tricarballylic, dihydroxy-tricarballylic, nitrotriacetic and ethylenediamine-tetracetic acids may be used with glycerol, erythritol, pentaerythritol, mannitol, sorbitol or sugar alcohol (4-6 C) and the salts are of alkali metal or ammonium ion. A proportion of 10-80% by weight of salts may be used and then ion-active and/or non-ionic tensides and further conventional additives may be present. Examples describe the use of builders prepared from glycerol, sorbitol or pentaerythritol with nitric acid used with dodecylbenzene sulphonate, tallow fatty alcohol and hardened tallow soap, and also with additional magnesium silicate, sodium silicate, sodium perborate, sodium sulphate and tylose in detergent wash liquors.

    7.
    发明专利
    未知

    公开(公告)号：DK139437B

    公开(公告)日：1979-02-19

    申请号：DK470572

    申请日：1972-09-22

    Applicant: HOECHST AG

    Inventor： KANDLER J ,  MERKENICH K ,  HENNING K ,  VOGT W ,  AUER E ,  GLASER H

    IPC: C11D3/00 ,  C11D3/20

    Abstract: Water-soluble salts of acid carboxylic acid esters of bivalent aliphatic or olefinically unsaturated carboxylic acids or hydroxycarboxylic acids and at least trihydric aliphatic alcohols are used as builders for detergent and cleansing agents. Each hydroxylic group of the alcohol or optionally of the carboxylic acid has a carboxylic acid-molecule attached thereto.

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