There is a new method for the preparation of polycarbon polyurethane primers

China Coatings Online News Information:
polycarbonate-type polyurethane primer and its preparation method has been patented. Public No.: CN103820016A; The invention discloses a polycarbonate-type polyurethane primer, the polycarbonate-type polyurethane primer disclosed in the present invention is a cement concrete substrate waterproof primer, with water resistance, low viscosity, good wetting of the water-mixed substrate, environmental protection, high bonding strength advantages, widely used in cement or concrete as the base of bonding.
is composed of A and B components, of which A components include polycarbonate polyols and isocyanate reactions produced by polyurethane 50-70, solvent 20-40, catalyst 0.01-0.1; The sub-groups include polyether polyols and isocyanates produced by the reaction of curing agent 20-45, solvent 30-50, plasticizer 5-45, catalyst 0.1-1.0, other small molecule additives 0.1-5.
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