PROCESS FOR FORMING A STABLE NON-PHASE SEPARATING RINSE-AID DISPERSION

摘要

A process for compatilization of a low foam nonionic surfactant without the aid of a high molecular weight compatilizing polymer and without requiring an additional nonionic surfactant having a cloud point of at least 70 degrees C to form a stable, non phase-separating aqueous rinse aid dispersion, is provided. The process includes the steps of providing, by weight of the rinse aid dispersion, a low foaming nonionic surfactant in an amount from about 2 % to about 80 %, a hydrotrope in an amount from about 0.5 % to about 20 %, and a poly(meth)acrylic acid polymer in an amount from about 0.1 % to about 15 %. The low foaming nonionic surfactant, the hydrotrope and the poly(meth)acrylic acid polymer are mixed together to form a rinse aid dispersion. The rinse aid dispersion is maintained in an acidic condition having a pH in a range of from about 2 to about 6. A stable, non phase-separating aqueous rinse aid dispersion is thus formed under acidic conditions.