Aqueous cleaning solutions for removing uncured urethane resin systems from the surfaces of processing equipment

摘要

Uncured polyurethane resin systems are efficiently removed from the surfaces of dispensing equipment, tools and other such items on which the resin systems are not desired by a cleaning solution comprising: 1. water; 2. at least about 2 wt % of at least one dibasic ester; and 3. a catalytic amount of a catalyst for promoting a reaction between the isocyanate and the water. Preferably, the cleaning solution contains a solubilizing amount of a cosolvent and/or surfactant capable of coupling with the dibasic ester.