Zero/low voc dry erase coatings and other variations

Abstract

Multi-part and one-part dry erase compositions are disclosed herein, including methods of using such compositions to form low/zero volatile organic compound (VOC) dry erasable coatings. The multi-part dry erase composition comprises a mixture of a first part and a second part, wherein the first part comprises a curable epoxy resin, such as an aromatic epoxide with diglycidyl epoxy functionality, and the second part comprises an amine curing agent, such as cycloaliphatic polyamine. The one-part compositions comprise monomers, oligomers, and polymers of an aliphatic or aromatic isocyanate, such as a diisocyanate, and an amine curing agent, such as morpholine and derivatives thereof. The dry erase compositions have a VOC content of less than about 25 g/L. Dry erasable coatings also include the abilities to dry erase additional markings in addition to dry erase markers, to include, but not limited to, regular marker, permanent marker, pen, highlighter, crayon, and spray paints. The dry erasable coatings can also withstand wet erasing, cleaning, and deep cleaning, with more aggressive cleaning chemicals like acetone, xylene, and Goof-Off brand aerosol cleaner while still maintaining its dry erasable features.

Dependencies are inferred from the claim text.