Protective layer for painted surfaces

Details Protective layer for painted surfaces Protective layer for painted surfaces

C - Chemistry, Metallurgy

09

D

C09D 175/04 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/42 (2006.01) C08G 18/66 (2006.01) C08G 18/69 (2006.01) C08G 18/83 (2006.01) C09D 5/08 (2006.01)

Patent

CA 2415595

An aqueous dispersion comprising a high molar mass polyurethane A and additives B, wherein the polyurethane has a number-average molar mass of at least 10 kg/mol and a weight-average molar mass of at least 20 kg/mol and wherein the additives B contain mercaptan groups, hydrazide groups and/or N-alkylamide groups, their preparation, arid their use as a surface protection coating, especially for motor vehicles.

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