| abstract |
Latent crosslinking aqueous polyurethane dispersions containing DOLLAR AI) a disperse phase (PI), containing DOLLAR A Ia) a polyurethane (Ia) which, in addition to hydrophilic groups which cause water dispersibility, carries carbodiimide groups and essentially does not carry any carboxyl groups DOLLAR A or DOLLAR A Ib) a physical mixture of DOLLAR A Ibi) a polyurethane (Ibi) which carries hydrophilic groups which bring about water dispersibility and essentially does not carry any carbodiimide or carboxyl groups, DOLLAR A and DOLLAR A Ibii) a carbodiimide (Ibii), which essentially does not carry any hydrophilic groups which cause water dispersibility., DOLLAR A II) a coherent aqueous phase (P.II) containing in solution a polycarboxylic acid II which does not carry any carbodiimide groups and which has a water solubility of at least 1 g / l at 25 ° C in the coherent aqueous phase P.II. |