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    Method for producing ester of polyalcohol
    1.
    发明专利
    Method for producing ester of polyalcohol 有权
    生产聚醇的方法

    公开(公告)号：JP2013082941A

    公开(公告)日：2013-05-09

    申请号：JP2013013621

    申请日：2013-01-28

    Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： JAWOREK THOMAS ,  DANIEL THOMAS ,  WOLF LOTHAR ,  KOENIGER RAINER DR ,  SCHWALM REINHOLD ,  HARTMANN GABRIELE ,  WICKEL STEFAN

    IPC: C08F220/06 ,  C08G63/78 ,  A61L15/60 ,  C07C67/08 ,  C08F2/00 ,  C08G65/332

    CPC classification number: C08G65/3322 ,  A61L15/60 ,  C07C67/08 ,  C07C69/54

    Abstract: PROBLEM TO BE SOLVED: To simplify a production method for a material usable as a radical crosslinking agent for a high-absorbent material.SOLUTION: A method for producing a crosslinked hydrogel is provided, in which a polyalcohol A is reacted with an ethylenically unsaturated carboxylic acid B in the presence of an esterification catalyst C, a polymerization inhibitor D, and optionally a solvent E which forms an azeotrope with water under the formation of an ester F. Optionally, at least a part of water produced is removed from a reaction mixture, optionally the reaction mixture is neutralized, and the solvent E is removed by distillation, and/or stripped using a gas which is inert under reaction conditions. The reaction mixture from one of the steps, optionally an additional monoethylenically unsaturated compound N, and optionally a copolymerizable hydrophilic monomer M are polymerized in the presence of a radical initiator K and optionally a graft base L. Optionally, the reaction mixture obtained is subjected to post crosslinking, drying, pulverization, and/or screening.

    Abstract translation: 要解决的问题：为了简化用作高吸收性材料的自由基交联剂的材料的制造方法。 解决方案：提供一种制备交联水凝胶的方法，其中多元醇A与乙烯不饱和羧酸B在酯化催化剂C，阻聚剂D和任选的形成的溶剂E的存在下反应 在酯F的形成下与水形成共沸物。任选地，将至少一部分产生的水从反应混合物中除去，任选地将反应混合物中和，并通过蒸馏除去溶剂E和/或使用 在反应条件下为惰性气体。 来自一个步骤的反应混合物，任选的另外的单烯属不饱和化合物N和任选的可共聚的亲水单体M在自由基引发剂K和任选的接枝基质L的存在下聚合。任选地，将获得的反应混合物 后交联，干燥，粉碎和/或筛选。 版权所有（C）2013，JPO＆INPIT

    3.
    发明专利
    未知

    公开(公告)号：AT545669T

    公开(公告)日：2012-03-15

    申请号：AT02781341

    申请日：2002-12-06

    Applicant: BASF SE

    Inventor： BRUCHMANN BERND ,  HAEBERLE KARL ,  HOERNER KLAUS DIETER ,  TREIBER REINHARD ,  RENZ THOMAS ,  SEYFFER HERMANN ,  MEYER BAERBEL ,  WOLF LOTHAR ,  KNOCHEL PAUL

    IPC: C08G18/22 ,  C08G18/65 ,  C08G18/08 ,  C08G18/12 ,  C08G18/28 ,  C08G18/66 ,  C08G18/72 ,  C09D5/02 ,  C09D175/04 ,  C09J5/00 ,  C09J175/04 ,  C14C11/00

    Abstract: Aqueous dispersions comprising a polyurethane composed of a) diisocyanates, b) diols of which b 1 ) from 10 to 100 mol %, based on the total amount of diols (b), have a molecular weight of from 500 to 5000, and b 2 ) from 0 to 90 mol %, based on the total amount of diols (b), have a molecular weight of from 60 to 500 g/mol, c) monomers other than the monomers (a) and (b), containing at least one isocyanate group or at least one isocyanate-reactive group and further carrying at least one hydrophilic group or potentially hydrophilic group by means of which the polyurethane is made dispersible in water, d) if desired, further, polyfunctional compounds other than the monomers (a) to (c), containing reactive groups which are alcoholic hydroxyl groups, primary or secondary amino groups or isocyanate groups, and e) if desired, monofunctional compounds which are other than the monomers (a) to (d) and contain a reactive group which is an alcoholic hydroxyl group, a primary or secondary amino group or an isocyanate group, obtainable by reacting the monomers a), b), c), and, where used, d) and e) in the presence of a cesium salt.

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