Patent ID: 6069218
Filing Date: 2000-05-30
Classification: C08G,C08L,C09D

Abstract:
Aqueous coatings based on one or more members selected from the group consisting of binders, crosslinking agents, pigments fillers, paint industry additives and solvents, comprising:as binder an aqueous dispersion based on polyurethane/polymer hybrid polymers having a numerical average of the molar mass (Mn) of 8,000 to 1,500,000, a ratio by weight of polyurethane to polymer content of 0.05:1 to 50:1, a hydroxyl number of 0 to 150 mg KOH/g, based on solid resin, hydroxyl groups bound to silicon not being included when calculating the OH number, and an acid number of 1.5 to 40 mg KOH/g, based on solid resin, and a content of 0.5 to 150 mmole of silicon per 100 g of solid resin in the form of siloxane bridges (--Si--O--Si--) bound into the polyurethane content, wherein the polymer content is based on olefinically unsaturated monomers.