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1. 发明申请

US20030083448A1 Water and oil repellent masonry treatments 失效
标题翻译：防水和拒油砌石处理
公开(公告)号：US20030083448A1
公开(公告)日：2003-05-01
申请号：US09938188
申请日：2001-08-23
申请人： 3M Innovative Properties Company
发明人： Wayne W. Fan , Steven J. Martin
IPC分类号： C08F126/00 , B32B027/00 , E21B033/02
CPC分类号： C09K8/882 , C04B41/4842 , C04B2111/203 , C04B2111/27 , C08F220/24 , C08F220/38 , C09K8/5083 , Y10T428/3154 , Y10T428/31544 , C04B41/4922 , C04B41/502
摘要： The present invention provides a water-soluble and shelf-stable aqueous fluorochemical polymeric treatment useful to treat porous substrates to render them repellent to water- and oil-based stains. The treatment comprises a water-soluble or dispersible fluorochemical polymer containing only carbon atoms in the backbone, with a plurality of each of the following groups pendent from the backbone: (a) fluoroaliphatic groups, (b) carboxyl-containing groups, (c) silyl groups and optionally (d) other non-hydrophilic groups. Because the water-soluble polymeric treatment of the present invention, and the shelf-stable aqueous solutions thereof, can be applied to porous substrates in aqueous solution, they eliminate the need for environmentally harmful and toxic co-solvents. Particularly when applied to masonry and other siliceous materials, these polymeric treatments can react with the substrate onto which they are applied to form an invisible and water-insoluble coating that repels both water and oil, resists soiling, and that cannot be easily washed from the surface of the substrate. Substrates treated with these polymers are thereby durably protected from rain and normal weathering.
摘要翻译：本发明提供了一种水溶性和储存稳定的含氟含氟聚合物处理剂，其可用于处理多孔基材以使其驱除基于油和油的污渍。该处理包括在骨架中仅含有碳原子的水溶性或可分散的含氟化合物聚合物，其中多个以下各个基团从主链侧排出：（a）氟代脂族基团，（b）含羧基团，（c）甲硅烷基和任选地（d）其它非亲水基团。因为本发明的水溶性聚合物处理剂及其稳定的水溶液可以在水溶液中施加到多孔基材上，因此不需要对环境有害和有毒的共溶剂。特别是当应用于砌体和其他硅质材料时，这些聚合物处理可以与其上施加的基材反应形成不可见和水不溶性的涂层，其排斥水和油，抵抗污染，并且不能容易地从基板的表面。用这些聚合物处理的基材由此耐久地防止雨和正常的风化。

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