申请人:Nippon Shokubai Co., Ltd.
公开号:EP1403347A1
公开(公告)日:2004-03-31
The object of the invention is to provide a means to enhance the drying property of a coating film formed as a vibration damper and repressing the occurrence of crack and expansion in the surface of the coating film. The task mentioned above is accomplished by using a thickener for vibration damper, which contains a polymer comprising an alkali-soluble monomer unit and an associating monomer unit. The alkali-soluble monomer unit may possess a carboxyl group, a sulfonic acid group, or a phosphoric acid group, or a salt thereof. The associating monomer unit may possess in a side chain thereof a group representedby the formula, -(R1-O)n-X-R2, (wherein R1 denotes methylene group, ethylene group, propylene group or butylene group, n denotes a number in the range of 10 - 300, X denotes a direct bond, -C(=O)-, or -C(=O)NH-, and R2 denotes a hydrocarbon group of 6 - 30 carbon atoms).
本发明的目的是提供一种方法,以提高作为减震器形成的涂膜的干燥性能,并抑制涂膜表面裂纹和膨胀的发生。上述任务是通过使用一种用于减震器的增稠剂来完成的,该增稠剂含有一种由碱溶性单体单元和缔合单体单元组成的聚合物。碱溶性单体单元可以具有羧基、磺酸基、磷酸基或其盐。缔合单体单元可在其侧链中具有由式-(R1-O)n-X-R2 表示的基团(其中 R1 表示亚甲基、亚乙基、亚丙基或亚丁基,n 表示 10 - 300 范围内的数字,X 表示直接键、-C(=O)-或-C(=O)NH-,R2 表示 6 - 30 个碳原子的烃基)。