Abstract: Coating compositions that are stable to thermal yellowing that include coating materials containing I) one or more dispersions of hydroxyl-free polyurethanes and/or polyurethane-ureas, II) one or more aqueous solutions or dispersions of ionically modified, hydroxyl-containing polyurethanes and/or polyurethane-ureas, other than the constituents of component I), and III) at least one crosslinker.

Abstract: The present invention relates to aqueous, self-crosslinking polyurethane dispersions containing in the same polyurethane molecule structural units I) and II) wherein R is the radical obtained by removing the isocyanate groups from an aliphatic, cycloaliphatic, araliphatic or aromatic polyisocyanate, R? is an alkyl radical, X is a carboxylic acid (COOH) or carboxylate (COO?) radical, Y is NH2, NHR? or OH, and R? is an alkyl radical. The present invention also relates to a process for preparing these aqueous, self-crosslinking polyurethane dispersions and to their use in aqueous one-component baking systems and in aqueous coating, varnishes or adhesive compositions.

Abstract: The present invention relates to a process for preparing self-crosslinking polyurethane dispersions by I) reacting a1) polyisocyanates with a2) at least one hydroxyl component having an average OH functionality of ?2 and a number average molecular weight of 62 to 2500 g/mol, wherein the hydroxyl component contains at least one acid-functional compound containing at least one isocyanate-reactive group, to form an NCO-functional and optionally OH-functional prepolymer, II) then reacting the NCO-functional and optionally OH-functional prepolymer with a3) a hydroxyl component having an average OH functionality of >1 and a4) optionally another polyisocyanate component, which may be the same as or different from a1), to form an OH-functional and NCO-free polyurethane, III) adding a blocked polyisocyanate either before, during or after the reaction of steps I) and II), or forming a blocked polyisocyanate in situ from a polyisocyanate and a blocking agent after the reaction of step II) has taken place, IV) neutral

Abstract: The invention provides hydrolysis-stable size compositions based on polycarbonate polyols and polytetramethylene glycol polyols, their preparation and use.

Abstract: The present invention relates to a binder composition containing A) at least one aqueous polyurethane-polyurea dispersion and B) at least one stabilizer containing a) at least one amine having a structural unit corresponding to formula (I) ?which has no hydrazide groups, b) at least one compound having a structural unit corresponding to formula (II) —CO—NH—NH—??(II) ?and c) optionally a stabilizing compound other than a) and b). The polyurethane dispersions are manufactured in the presence of components a) and b). It is possible for components a) and b), depending on the grade used, to be incorporated into the polymer framework as structural units.

Abstract: Blocked polyisocyanates and one-component stoving systems containing these blocked polyisocyanates, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are derived from polyisocyanates reacted with secondary amines and cationic, anionic and/or nonionic hydrophilizing agents such that they are incorporated into the polyisocyanate at a ratio of from 20:1 to 1:1, wherein the blocking agents correspond to the formula R1–R4 can be identical or different and independently of one another denote hydrogen, C1–C6-alkyl or C3–C6-cycloalkyl, R5 denotes C1–C10-alkyl, C3–C10-cycloalkyl, and B represents ?wherein R6–R8 can be identical or different and independently of one another denote C1–C6-alkyl and/or C1–C6-cycloalkyl, R9 denotes hydrogen or C3–C6-alkyl or C3–C6-cycloalkyl.

Abstract: The present invention relates to a water vapor-permeable coating composite containing one or more flexible substrates, which are coated on one or both sides with one or more identical or different coating compositions, provided that at least one coating composition contains, as binder, a silica sol-modified aqueous polymer dispersion prepared from unsaturated monomers.

Abstract: The invention relates to aqueous coating material compositions stable to hydrolysis, to a process for preparing them and to their use as soft feel paint. The compositions comprise hydroxyl-free polyurethanes and/or polyurethane-ureas based on polycarbonate polyols and polytetramethylene glycol polyols, ionically modified, hydroxyl- and/or amino-containing polyurethanes and/or polyurethane-ureas and at least one crosslinker, and optionally further film-forming resins.

Abstract: The present invention relates to new polyurethane and/or polyurethane-urea dispersions having ionic or potentially ionic or nonionic groups in the polymer backbone, to a process for preparing these dispersions and to their use as adhesives.

Abstract: Coating compositions that are stable to thermal yellowing that include coating materials containing I) one or more dispersions of hydroxyl-free polyurethanes and/or polyurethane-ureas, II) one or more aqueous solutions or dispersions of ionically modified, hydroxyl-containing polyurethanes and/or polyurethane-ureas, other than the constituents of component I), and III) at least one crosslinker.

Abstract: The present invention relates to aqueous silica sol-modified PU dispersions and their use as coating materials, in particular [lacuna] textiles and leather.

Abstract: Aqueous polyurethane-polyurea dispersions, stabilized with respect to thermal yellowing, which have excellent mechanical properties and also to their preparation and use.

Abstract: Size compositions that include one or more polyurethane-polyurea dispersions; optionally further film-forming resins; and optionally crosslinkers. The dispersions are obtained by preparing an NCO-containing polyurethane prepolymer by reacting polyisocyanates with polymeric polyols and/or polyamines, optionally low molecular weight compounds, isocyanate-reactive, ionically or potentially ionically hydrophilicizing compounds and/or isocyanate-reactive nonionically hydrophilicizing compounds, and optionally in inert solvents with the proviso that none of components contains primary or secondary amino groups; followed by either dissolving the prepolymer in aliphatic ketones or, diluting the prepolymer solution by further addition of aliphatic ketones; and reacting the remaining free NCO groups of the prepolymer with a chain extender component. The dispersions are used in mouldings and/or coatings that can be used to caot substrates, such as glass fibers.

Abstract: A process for preparing self-crosslinking polyurethane polymers including i) reacting an aromatic isocyanate component (A) or a mixture of aromatic, aliphatic and/or cycloaliphatic isocyanate component having an isocyanate group functionality of greater than or equal to 2 with an at least difunctional polyol component (B1) with an average molecular weight of from 62 to 2500, which includes at least one acid-functional compound (C), to give a prepolymer containing isocyanate groups or containing hydroxyl groups, ii) adding one or more polyol components (B2) having an OH functionality of greater than or equal to 1, and optionally, an isocyanate component (A?), which may be identical to or different from (A), iii) mixing the resulting NCO-functional product with a blocking agent (D), and iv) adding a polyol component (B3). Self-crosslinking polyurethane polymers prepared as described above can be used in paint, varnish or adhesive compositions.

Abstract: Blocked polyisocyanates and one-component stoving systems containing these, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and elastomers. The blocked polyisocyanates are derived from polyisocyanates reacted with secondary amines and cationic, anionic and/or nonionic hydrophilizing agents such that they are incorporated into the polyisocyanate at a ratio of from 20:1 to 1:1.

Abstract: The invention concerns aqueous preparations of water-dilutable blocked polyisocyanates, their production and use in optionally self-crosslinking one-component systems.

Abstract: Aqueous preparations of hydrophilic polyurethanes and their use for the coating of substrates. The polyurethanes contain from 2 to 20 wt.

Abstract: Coating compositions based on aqueous polyurethane dispersions, a process for preparing such compositions and their use for producing soft feel coatings having low fog and VOC values. The aqueous coating compositions include at least one aqueous formulation of an ionically modified, substantially hydroxyl-free poylurethane and/or polyurethaneurea, at least one aqueous formulation of an ionically modified, hydroxyl-containing polyuerthane and/or polyurethaneurea, and at least on crosslinker.

Abstract: The present invention relates to aqueous one-component (1K) coating systems based on non-isocyanate-reactive polyurethane dispersions (polyurethane dispersions which are not reactive towards isocyanate groups) and blocked, hydrophobic polyisocyanates and also to a process for their preparation and use.

Abstract: The present invention relates to a binder composition containing