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