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    • 31. 发明公开
    • WATER-SOLUBLE ACRYLIC ACID SALT POLYMER AND GELLING BASE
    • 水溶性丙烯酸盐聚合物和凝胶基
    • EP2301976A1
    • 2011-03-30
    • EP09766534.3
    • 2009-06-05
    • Sumitomo Seika Chemicals CO. LTD.
    • MIURA, KazuyukiKOBAYASHI, Shinji
    • C08F20/06A61F7/02A61F7/10A61K8/02A61K8/81A61K9/70A61K47/02A61K47/10A61K47/32A61Q19/00C09K5/08
    • C09K5/08A61F7/10C08F220/06
    • An object of the present invention is to provide a water-soluble acrylate polymer that can form a gelling base. When used in forming a poultice or cooling sheet, the gelling base not only imparts desirable stretchability, but also has an appropriate reaction rate with a polyvalent metal. The gelling base is free from gel penetration to the back side of a support or gel seeping from the support while the gel is being cured, and is easily applied to the support. When the gelling base is gelated by being allowed to stand under the conditions of 25°C and a relative humidity of 60%, the gel strength is 3,200 to 7,000 dyn/cm 2 after standing for 7.5 hours and 5,000 to 9,000 dyn/cm 2 after standing for 200 hours, and satisfies the following relationship: Gel strength after standing for 7.5 hours] ≤ Gel strength after standing for 200 hours.
    • 本发明的目的是提供可形成胶凝基质的水溶性丙烯酸酯聚合物。 当用于形成泥敷剂或冷却片时,胶凝基质不仅赋予理想的可拉伸性,而且还具有与多价金属的适当反应速率。 当凝胶被固化时,胶凝基底不会从支撑物的背面渗透凝胶或从支撑物渗出的凝胶,并且容易施加到支撑物上。 在25℃,相对湿度60%的条件下使凝胶化基凝胶化时,静置7.5小时后的凝胶强度为3,200〜7,000dyn / cm 2,静置后凝胶强度为5,000〜9,000dyn / cm 2 持续200小时,并满足以下关系:静置7.5小时后的凝胶强度]≤静置200小时后的凝胶强度。