A highly weather-resistant one-pack cross-linking emulsion comprising an emulsion polymer [X] prepared by the emulsion polymerization in an aqueous medium of a polymerizable monomer component [II] comprising 0.1-10 wt.% of a polymerizable ultraviolet-stable monomer (a), 5-99.4 wt.% of a polymerizable cycloalkylated monomer (b), o.5-40 wt.% of a polymerizable monomer (c) having a group reactive with carboxyl group and 0-99.4 wt.% of other polymerizable monomer(s) in a total contents of the components (a) to (d) of 100 wt.% by using an emulsifying agent comprising a water-soluble or dispersible alkyl-terminated polymer [I] and/or a salt thereof, said polymer [I] being prepared by polymerizing a polymerizable monomer component (A) containing an unsaturated carboxylic acid as an essential component in the presence of a C₆-C₁₈ alkyl mercaptan and having an acid value of 200 or above.
                            一种高耐候性单组分交联乳液,包括乳液聚合物[X],该乳液聚合物是由可聚合单体组分[II]在
水介质中进行乳液聚合制备而成,可聚合单体组分[II]包括 0.1-10重量%的可聚合紫外线稳定单体(a)、5-99.4重量%的可聚合环烷基化单体(b)、o.5-40重量%的具有与羧基反应的基团的可聚合单体(c)以及总含量为 0-99.4 重量%的其他可聚合单体。重量百分比的可聚合环烷基化单体 (b)、o.5-40 重量百分比的具有与羧基反应的基团的可聚合单体 (c),以及 0-99.4 重量百分比的其他可聚合单体,在成分 (a) 至 (d) 的总含量为 100 重量百分比时,使用
乳化剂。所述聚合物[I]是通过在酸值为 200 或以上的 C₆-C₁₈ 烷基
硫醇存在下聚合含有不饱和
羧酸作为基本成分的可聚合单体成分 (A) 而制备的。