PROCESS FOR THE PREPARATION OF STABLE AQUEOUS DISPERSIONS OF OLIGOURETHANES OR POLYURETHANES AND THEIR USE AS COATING COMPOUNDS FOR FLEXIBLE OR RIGID SUBSTRATES

摘要

Mo-2136 LeA 19,728 PROCESS FOR THE PREPARATION OF STABLE AQUEOUS DISPERSIONS OF OLIGOURETHANES OR POLYURETHANES AND THEIR USE AS COATING COMPOUNDS FOR FLEXIBLE OR RIGID SUBSTRATES A process is provided for preparing storage stable, aqueous dispersions of oligourethanes or polyurethanes in admixture with auxiliary agents and additives which are not soluble nor dispersible in water. The oligourethanes or polyurethanes are rendered dispersible in water by incorporating ionic and/or non-ionic hydrophilic groups. In order that the final product remains storage stable, the auxiliary agents or additives are added to the oligourethanes or polyurethanes before they are dispersed in water. Mo-2136 LeA 19,728