Patent ID: 6191214
Filing Date: 2001-02-20
Classification: C08G

Abstract:
A method for the preparation of water-borne PU dispersion for adhesive, wherein the main reactants comprise:(a) organic isocyanates selected from the group consisting of aliphatic isocyanates, aromatic isocyanates, alicyclic isocyanates or a mixture thereof;(b) polyols for reaction with said isocyanates said polyols being selected from the group consisting of polyester polyols, polyether polyols, polycarbonate polyols, polycaprolactone polyols or a mixture thereof;(c) chain extenders from diamines or glycols with a molecular weight between 30-400;(d) compounds containing diamine sulfonate as: ##STR3##in whichm=2-12n=1-3A=K or Na.