Abstract: Disclosed are methods for coating a substrate. These methods include: (a) preparing a two-component coating composition by mixing a first component and a second component to make a mixture thereof, and (b) depositing the mixture over the substrate to form a film having a 60° gloss of no more than 35 gloss units (measured according to ASTM D523-89). In these methods: (i) the first component includes: (A) an aqueous anionic, aliphatic polyurethane dispersion comprising a polyurethane having terminal methylol groups; and (ii) the second component comprises an aqueous anionic acrylic polymer solution having a viscosity of 25,000 to 60,000 mPa·s at 20° C. when measured according to DIN EN ISO 3219 at a non-volatile content of 9% to 11% by weight, based on the total weight of the solution, measured according to DIN 53189.

Abstract: A two-component water-borne adhesive composition that includes a first component containing the reaction product obtained by reacting a polyisocyanates with a compound containing at least one hydroxyl or amine group followed by reaction with an aspartate compound and a second component containing a catalyst and/or a resin. The composition is used in a method of bonding a first substrate to a second substrate to form an assembly including at least the first substrate and the second substrate bonded together.

Abstract: The present invention is directed to a process for the preparation of stable polyurethane-polyurea dispersion in a multi-stage process by forming an isocyanate-terminated prepolymer having an ionic group content of up to about 50 milliequivalents per 100 g of prepolymer by reacting an organic polyisocyanate a) with at least two isocyanate-reactive components b1) and b2) wherein component (b1) has at least one ionic or potential ionic hydrophilic group, characterized in that1) The isocyanate a) is initialy reacted with component b1) for a time sufficient to react at least 50% of the isocyanate-reaction groups of component (b1), and2) the resulting product is then reacted with component b2) and optionally with a component b3) containing ethylene oxide units to form a prepolymer, and3) the resulting prepolymer is dispersed in water.

Abstract: The present invention is directed to a process for the preparation of stable polyurethane-polyurea dispersions in a multi-stage process by forming an isocyanate-terminated prepolymer having an ionic group content of up to about 50 milliequivalents per 100 g of prepolymer by reacting an organic polyisocyanate (a) with at least two isocyanate-reactive components (b1) and (b2) wherein component (b1) has at least one ionic or potential ionic hydrophilic group, characterized in that(1) the isocyanate (a) is initially reacted with component (b1), and(2) the resulting product is then reacted with component (b2) and optionally with a component (b3) containing ethylene oxide units to form a prepolymer, and(3) the resulting prepolymer is dispersed in water.The present invention further release to products obtained according to this process and to their use for the preparation of coatings on flexible or rigid substrates and in particular to their use as ahdesives.