Abstract: The invention relates to aqueous formulations comprising silane-modified polymeric binders having a siloxane content and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the preparation of aqueous coating compositions.

Abstract: The present invention describes the preparation of an aqueous polyurethane dispersion which is cured by radiation, and its use as binder.

Abstract: Aqueous UV-hardenable dispersions are provided, as well as their use for the production of coating agents, in particular coatings for ligneous substrates.

Abstract: The invention relates to aqueous polyurethane dispersions comprising diphenyl-methane 2,2?-diisocyanate as a synthesis component, to a process for preparing them and to use as coating compositions.

Abstract: The invention relates to new aqueous polyurethane-modified alkyd resin dispersions, to their preparation and use as binders in paints and coatings.

Abstract: The invention relates to novel UV-curable polyurethane dispersions based on unsaturated polyesters modified with dicyclopentadiene, the preparation of these polyurethane dispersions and the use thereof as a lacquer, coating and/or adhesive.

Abstract: A process for the continuous production of an aqueous polyurethane dispersion based on at least one aliphatic and/or aromatic polyisocyanate is described, which is characterised by the following steps: a) production of an aqueous pre-emulsion by mixing a polyurethane prepolymer containing hydrophilic and/or potentially hydrophilic groups with water in a mixing nozzle, wherein the polyurethane prepolymer is injected into the water; b) formation of an emulsion by homogenization of the pre-emulsion from step a) in a multi-step homogenizing nozzle. Paint films containing the aqueous polyurethane dispersion produced by the process can be used to coat substrates.

Abstract: The invention relates to new, aqueous secondary copolymer dispersions, to a process for preparing them and to their use for producing high-grade coatings, especially for wood. The dispersions comprise a copolymer (P) synthesized from a mixture of free-radically polymerizable monomers (M) comprising (M1) cycloaliphatic esters of acrylic and/or methylacrylic acid and also (M2) vinyl esters of aliphatic carboxylic acids.

Abstract: The invention relates to aqueous polyurethane dispersions with a high hard-segment fraction and improved storage stability, to a process for preparing them, and to coating compositions prepared from them.

Abstract: The present invention relates to a process for preparing an aqueous coating composition by I) preparing a polyurethane dispersion that is free from NMP and other solvents by 1) preparing in a first step an NCO prepolymer solution which has a concentration of 66% to 98% by weight in a solvent having a boiling point of below 100° C. at atmospheric pressure and which is the reaction product of: a) one or more polyisocyanates with b) one or more polyols having average molecular weights Mn of 500 to 6000, c) one or more polyols having average molecular weights Mn of 62 to 500, and d) one or more compounds which contain an ionic group or a potential ionic group, 2) in a second step dispersing NCO prepolymer I.1) in water and at least partly neutralizing the potential ionic groups to form ionic groups before, during or after the dispersion, 3) in a third step chain extending NCO prepolymer I.

Abstract: Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.

Abstract: A process for the continuous production of an aqueous polyurethane dispersion based on at least one aliphatic and/or aromatic polyisocyanate is described, which is characterised by the following steps: a) production of an aqueous pre-emulsion by mixing a polyurethane prepolymer containing hydrophilic and/or potentially hydrophilic groups with water in a mixing nozzle, wherein the polyurethane prepolymer is injected into the water; b) formation of an emulsion by homogenisation of the pre-emulsion from step a) in a multi-step homogenising nozzle. Paint films containing the aqueous polyurethane dispersion produced by the process can be used to coat substrates.

Abstract: Solvent-containing formulations including NCO-containing prepolymers based on TDI isocyanurate polyisocyanates and diphenylmethane diisocyanates where some prepolymers are prepared using a polyetherdiol containing ethylene oxide blocks and having an ethylene oxide content of from 2 to 18% by weight, based on all the alkylene oxide units. The formulation have an NCO content of 1% to 7% by weight, a solids content of 20% to 70% by weight, a monomeric TDI content of less than 0.2% by weight and a monomeric methylenediphenyl diisocyanate content of less than 2% by weight. The solvent-containing formulations can be prepared in organic solvents by reacting at least one of A) a TDI component comprising TDI isocyanurate polyisocyanates and B) an MDI component comprising diphenylmethane diisocyanates with C) a polyetherdiol. The solvent-containing formulations can be used in moisture-curing coating compositions, adhesive bonds and/or seals with substrates.

Abstract: The present invention relates to light fast, aqueous, strippable coating compositions containing A) 40 to 90 wt. %, based on resin solids of A) and B), of aqueous polyurethane-polyureas and B) 10 to 60 wt. %, based on resin solids of A) and B), of polymers prepared from radically polymerizable monomers, wherein the percentages of A) and B) add up to 100, based on the weight of resin solids of A) and B). The present invention relates also to substrates coated with these strippable coating compositions. In addition, the present invention relates to the use of the stripped coatings as recycled material by mechanically comminuting the stripped coatings, optionally after cleaning, and then either pressing them in heatable presses to form sheets, or extruding them in an extruder to form endless thermoplastic threads, and then processing the resulting threads by known granulating methods to form cylindrical, spherical, lenticular or rhombic granules.

Abstract: The present invention relates to aqueous coating compositions containing A) at least one aqueous emulsion polymer, B) one or more polymer dispersions as a dispersion medium, C) at least one pigment, D) optionally a neutralizing agent and E) optionally a coatings additive. The present invention also relates to a process for preparing these aqueous coating compositions by preparing a dispersion paste by mixing components B), C) and D) with some of component E) and then component A) and the remainder of component E) are homogeneously blended with the dispersion paste. The present invention further relates to peelable coatings prepared from these coating compositions for the temporary protection of surfaces.

Abstract: The invention provides novel solvent-free two-component polyurethane coating agents for preparing high quality yellowing-free coatings and a process for the preparation thereof. The coating agents include binder mixtures containing a polyisocyanate component with a viscosity at 23° C. of 2,000 to 150,000 mPas, a NCO content of 14 to 23 wt. % and a calculated mean NCO functionality of at least 2.8; a polyol component with a mean OH functionality <3, a viscosity at 23° C. of 5,000 to 150,000 mPas and a hydroxyl value of 400 to 700 mg KOH/g; and optionally one or more catalysts.

Abstract: The invention relates to aqueous polyurethane dispersions based on fatty acid dialkanolamides, to a process for preparing them and to use as coating compositions.

Abstract: The invention relates to aqueous reactive 2-component binder combinations for aqueous reactive filler compositions, processes for the preparation of aqueous reactive filler compositions based on aqueous reactive 2-component binder combinations and the use of such filler compositions.

Abstract: Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and an initiator which is capable of initiating a free-radical polymerization.

Abstract: The invention relates to aqueous polyurethane dispersions based on fatty acid dialkanolamides, to a process for preparing them and to use as coating compositions.