申请人:National Starch and Chemical Investment Holding Corporation
公开号:US05258477A1
公开(公告)日:1993-11-02
Various novel acetal- and aldehyde-containing monomers are prepared. They can be polymerized and copolymerized by conventional polymerization techniques. The polymers contain repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group and optionally one or more repeating units derived from ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer such as ethylene, vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, methyl methacrylate or acrylic acid. Aqueous emulsions of polymers containing the acetal-containing monomers and a hydroxy-containing monomer are useful as binders for nonwoven fabrics.
制备了各种新型含乙醛和醛基的单体。它们可以通过传统的聚合技术进行聚合和共聚合。聚合物包含由一个或多个含有缩醛基或醛基的乙烯基或烯丙基不饱和单体衍生的重复单元,以及可选地由除含缩醛基或醛基单体外的乙烯基或烯丙基不饱和单体(例如乙烯,醋酸乙烯酯,丙烯酸乙酯,丙烯酸丁酯,2-乙基己基丙烯酸酯,羟乙基丙烯酸酯,羟丙基丙烯酸酯,甲基丙烯酸甲酯或丙烯酸)衍生的重复单元。含有缩醛基单体和羟基含量单体的聚合物的水乳液可用作无纺布的粘合剂。