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1. 发明申请

US20050004272A1 Small-particle latex compositions based on waterborne alkyd seeds 审中-公开
标题翻译：基于水性醇酸树脂种子的小颗粒胶乳组合物
公开(公告)号：US20050004272A1
公开(公告)日：2005-01-06
申请号：US10601512
申请日：2003-06-23
申请人： Thauming Kuo , Daphne Eggers , Mark Clark
发明人： Thauming Kuo , Daphne Eggers , Mark Clark
IPC分类号： C08F2/20 , C08F2/24 , C08F246/00 , C08F283/00 , C08K3/20
CPC分类号： C08F283/00 , C08F2/24 , C08F246/00
摘要： Aqueous latex polymer dispersion compositions are disclosed characterized by their small particle size. The compositions are prepared by emulsion polymerization of one or more ethylenically unsaturated monomer in the presence of an alkyd seed containing sulfonate groups. Coatings based on these latex dispersions have improved advantages in film forming, gloss, hardness, low residual monomer content, less yellowing, and low VOC. The latex dispersions, having average particle sizes of 60-140 nm, are prepared by using a small ratio (i.e. about 2-15 wt. %) of an aqueous alkyd dispersion as the seed for latex particle growth. The waterborne alkyds are based on 5-sodiosulfo-isophthalic acid and either unsaturated or saturated fatty acids. The latex polymer dispersions thus obtained have improved film forming properties as well as low residual monomer content. The latexes are capable of forming clear, hard films at room temperature in the absence of external coalescents. Moreover, the resultant films are essentially non-yellowing. Thus, the latexes of this invention could be formulated into zero- or low-VOC paints for a variety of coating applications.
摘要翻译：公开了水性胶乳聚合物分散体组合物，其特征在于它们的小粒径。通过一种或多种烯属不饱和单体在含有磺酸酯基团的醇酸树脂的存在下乳液聚合来制备组合物。基于这些胶乳分散体的涂料在成膜，光泽，硬度，低残留单体含量，较少黄化和低VOC方面具有改进的优点。平均粒径为60-140nm的胶乳分散体是通过使用较小比例（即约2-15重量％）的醇酸水溶液分散体作为胶乳颗粒生长的种子来制备的。水性醇酸树脂基于5-磺基间苯二甲酸和不饱和或饱和脂肪酸。由此获得的胶乳聚合物分散体具有改进的成膜性能以及低的残余单体含量。在没有外部聚结剂的情况下，胶乳能够在室温下形成透明的硬膜。此外，所得膜基本上不变黄。因此，本发明的胶乳可以配制成用于各种涂料应用的零或低VOC涂料。

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