MANUFACTURING METHOD OF SOLVENTFREE WATERBORNE POLYURETHANE EMULSION WITH EXCELLENT WEATHERRESISTANT AND SOLVENTFREE WATERBORNE POLYURETHANE EMULSION USING THE SAME

摘要

The present invention relates to it is a kind of prepare solvent-free aqueous polyurethane emulsion have excellent weatherability and the solvent-free aqueous polyurethane emulsion of manufacture by preparation method. More specifically, the step of preparation method includes that solvent-free aqueous polyurethane emulsion mixing latex neoprene (CR) to solvent-free aqueous polyurethane emulsion has excellent hydrolytic resistance, thus the weatherability being significantly increased. ;The 2016 of copyright KIPO submissions