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    • 2. 发明授权
    • Process for improving water-whitening resistance of pressure sensitive adhesives
    • 提高压敏粘合剂耐水白度的工艺
    • US07169846B2
    • 2007-01-30
    • US10142455
    • 2002-05-10
    • Augustin T. ChenJong-Shing GuoTibor Pernecker
    • Augustin T. ChenJong-Shing GuoTibor Pernecker
    • C09J141/00C09J133/02C09J133/06C09J129/12
    • C09J133/064C08F220/18C09J2201/606
    • Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) at least one hydrophobic alkyl acrylate or alkyl methacrylate ester of an alcohol, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt. % of at least one partially hydrophilic alkyl acrylate or alkyl methacrylate ester of an alcohol, and (iv) a water-soluble or water-dispersible polymerizable surfactant selected from compounds having a terminal allyl amine moiety, substituted phenyl compounds having at least one alkenyl substituent, polyoxyalkylene-1-(allyloxymethyl) alkyl ether sulfate salts, or mixtures thereof, and the average particle size of the polymer is less than or equal to 200 nm. Also disclosed are processes for preparing same.
    • 公开了具有增强的耐水性的含水乳液聚合物的压敏粘合剂组合物。 该聚合物包括可聚合水乳液的聚合反应产物,其包含:(i)至少一种疏水性烷基丙烯酸酯或醇的甲基丙烯酸烷基酯酯,(ii)至少约1wt。 %的至少一种亲水性单体,(iii)至少约5wt。 %的至少一种部分亲水的丙烯酸烷基酯或甲基丙烯酸烷基酯酯,和(iv)选自具有末端烯丙基胺部分的化合物的水溶性或水分散性可聚合表面活性剂,具有至少一个链烯基取代基的取代苯基化合物 ,聚氧化烯-1-(烯丙氧基甲基)烷基醚硫酸盐或其混合物,聚合物的平均粒度小于或等于200nm。 还公开了制备方法。