The present invention relates to the preparation of water based coating compositions having extended storage stability. The composition includes separately stored polymeric binder component and a crosslinking component.
These components are mixed prior to application over surfaces, such as, road surfaces. The polymeric binder component includes an anionically stabilized binder polymer having at least one reactive functional pendent moiety, or a blend of the binder polymer with a polyfunctional amine. The pot mix of the coating composition has extended storage stability. The waterborne road marking paints of the present invention exhibit improved wear resistance on road surfaces in terms of paint remaining on the road longer than waterborne road marking paints based on the storage stable component alone. The present invention provides road marking paints that can be applied by conventional road striping equipment and do not require special two component spray equipment.
本发明涉及具有延长储存稳定性的
水基涂料组合物的制备。该组合物包括单独储存的聚合物粘合剂成分和交联成分。
这些成分在应用于路面等表面之前进行混合。聚合物粘合剂成分包括阴离子稳定的粘合剂聚合物,该聚合物至少具有一个活性官能团悬垂分子,或粘合剂聚合物与多官能胺的混合物。涂料组合物的罐装混合物具有较长的储存稳定性。本发明的
水性道路标线涂料与仅基于储存稳定性成分的
水性道路标线涂料相比,在涂料留在路面上的时间更长,从而提高了路面的耐磨性。本发明提供的道路标线涂料可以用传统的道路划线设备涂刷,不需要特殊的双组分喷涂设备。