Aqueous polyurethane compositions

Details Aqueous polyurethane compositions Aqueous polyurethane compositions

C - Chemistry, Metallurgy

08

G

400/5453, 400/74

C08G 18/84 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/38 (2006.01)

Patent

CA 1163040

ABSTRACT OF THE DISCLOSURE A stable aqueous dispersion latex of a room tempera- ture curing polyurethane forming films resistant to water and organic solvents is disclosed, the polyurethane containing units derived from melamine, in addition to units derived from diisocyanate and difunctional reactants, in the polymer chain, pendant water-dispersing carboxylic salt groups, and room temperature curable and cross-linking N-methylol hydrazide terminii, and methods for making such dispersion.

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