Protective layer for painted surfaces
OwnerMarkus A. Schafheutle, Julius Burklinventors
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Abstract
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, and their use as a surface protection coating, especially for motor vehicles.
Claims10
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.
Dependencies are inferred from the claim text.