The present invention provides solvent- and water-based primer compositions that include at least one chlorinated carboxylated polyolefin that has been modified with one or more polyfunctional alcohols. The chlorinated carboxylated polyolefins are obtained by the reaction of polyolefins with at least one of unsaturated carboxylic esters, unsaturated carboxylic acids, unsaturated carboxylic anhydrides, acrylic monomers, and mixtures thereof then chlorinated. The chlorinated carboxylated polyolefins are then further modified by reaction with one or more polyfunctional alcohols. These polyfunctional alcohol-modified chlorinated carboxylated polyolefins may also contain pendant carboxyl groups, which have the propensity to form hydrophilic salts with amines or inorganic bases, thereby rendering the polyfunctional alcohol-modified chlorinated carboxylated polyolefins water-dispersible. These primer compositions are useful for significantly improving the adhesion of paints, adhesives, and inks to various plastic and metal substrates.
本发明提供了溶剂和
水基底漆组合物,其中至少包括一种经过一种或多种多官能醇改性的
氯化羧化聚烯烃。
氯化羧化聚烯烃是通过聚烯烃与不饱和
羧酸酯、不饱和
羧酸、不饱和
羧酸酐、
丙烯酸单体及其混合物之一的反应,然后
氯化而得到的。然后,通过与一种或多种多官能醇的反应进一步改性
氯化羧化聚烯烃。这些多官能醇改性的
氯化羧化聚烯烃也可以含有挂链的羧基,这些羧基具有与胺或
无机碱形成亲
水性盐的倾向,从而使多官能醇改性的
氯化羧化聚烯烃可以分散在
水中。这些底漆组合物可用于显着提高涂料、粘合剂和油墨对各种塑料和
金属基材的附着力。