Abstract: The present invention relates to fast-drying, hard-elastic, scratch-resistant, and robust two-component polyurethane coating compositions, to their use, and to coating methods. Synthesis components in the coating compositions comprise polyisocyanate, hydroxyl-containing poly(meth)acrylate polyol, and certain branched polyester polyols, obtainable by polycondensation of hexahydrophthalic anhydride, trimethylolpropane, and optionally further components.

Abstract: The present invention relates to fast-drying, hard-elastic, scratch-resistant, and robust two-component polyurethane coating compositions, to their use, and to coating methods. Synthesis components in the coating compositions comprise polyisocyanate, hydroxyl-containing poly(meth)acrylate polyol, and certain branched polyester polyols, obtainable by polycondensation of hexahydrophthalic anhydride, trimethylolpropane, and optionally further components.

Abstract: Process for the preparation of etherified melamine/formaldehyde condensates, in which first a methylolation of melamine with a formaldehyde component in the molar ratio of from 1:6 to 1:15, preferably at a pH of >7, is carried out. This is followed by an etherification of the resulting hydroxymethylation intermediate in the presence of a C1-C20-alkyl, preferably of a C1-C6-alcohol, particularly preferably of a C1-C4-alcohol, at a pH of <4.5, and subsequently by at least one distillation step in order to remove in particular methanol from the system, the pH of >9.5 being established before, during and/or after the distillation. According to the invention, a plurality of hydroxymethylation, etherification and distillation steps follow in order to achieve an etherified melamine/formaldehyde condensate which is distinguished by a high degree of hydroxymethylation, a high solids content and a low viscosity.

Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.

Abstract: The invention relates to a process for preparing polymethylolated melamine and polymethylolated melamine compounds polyetherified with alkanol, wherein the methylolation reaction is carried out in a kneading reactor.

Abstract: The invention relates to a process for preparing free-flowing, pulverulent alkoxycarbonylaminotriazine from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C1-C13-alkanol which optionally comprises one or two oxygen atoms in the form of ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, by atomizing and drying the reaction mixture in a spray drier.

Abstract: The present invention relates to powder coatings which comprise tricarbamoyltriazines modified with carbamate groups.

Abstract: The invention relates to a process for preparing polymethylolated melamine and polymethylolated melamine compounds polyetherified with alkanol, wherein the methylolation reaction is carried out in a kneading reactor.

Abstract: Process for the preparation of etherified melamine/formaldehyde condensates, in which first a methylolation of melamine with a formaldehyde component in the molar ratio of from 1:6 to 1:15, preferably at a pH of >7, is carried out. This is followed by an etherification of the resulting hydroxymethylation intermediate in the presence of a C1-C20-alkyl, preferably of a C1-C6-alcohol, particularly preferably of a C1-C4-alcohol, at a pH of <4.5, and subsequently by at least one distillation step in order to remove in particular methanol from the system, the pH of >9.5 being established before, during and/or after the distillation. According to the invention, a plurality of hydroxymethylation, etherification and distillation steps follow in order to achieve an etherified melamine/formaldehyde condensate which is distinguished by a high degree of hydroxymethylation, a high solids content and a low viscosity.

Abstract: New triazine derivatives containing carbamate groups, processes for preparing them, and their use.

Abstract: Processes comprising: providing an alkanolic reaction mixture, the alkanolic reaction mixture comprising: at least one alkoxycarbonylaminotriazine; at least one carbonic ester; at least one C1-C13-alkanol, which alkanol may further comprise up to two ether-bound oxygen atoms and may further comprise a substituent selected from the group consisting of C1-C4-alkyls and hydroxyls; and at least one alkali metal alkoxide or alkaline earth metal alkoxide; and subjecting the alkanolic reaction mixture to extraction with a polar extractant such that at least a portion of polar/ionic components present in the reaction mixture are removed, wherein the polar extractant is less than entirely miscible with an organic phase of the reaction mixture, to form an alkanolic phase comprising the at least one alkoxycarbonylaminotriazine and a polar phase comprising the polar extractant and the portion of polar/ionic components; and wherein the extraction is carried out with one or more selected from the group consisting of mixer/

Abstract: The invention relates to a process for removing salts from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C1-C13-alkanol which optionally comprises one or two oxygen atoms as ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal alkoxide or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, in which salts are removed from the reaction mixture by ion exchange over a cation exchanger and/or anion exchanger.

Abstract: The invention relates to a process for preparing free-flowing, pulverulent alkoxycarbonylaminotriazine from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C1-C13-alkanol which optionally comprises one or two oxygen atoms in the form of ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, by atomizing and drying the reaction mixture in a spray drier.

Abstract: New triazine derivatives containing carbamate groups, processes for preparing them, and their use.

Abstract: Aqueous compositions containing alkoxylated alcohols and hydrophobic components, method for the production and use thereof Compositions comprising, as components, a) at least two alkoxylated alcohols, b) at least one hydrophobic component selected from natural, modified natural and synthetic hydrophobic substances, c) at least 20% by weight, based on the total weight of the composition, of water, wherein the compositions have a mean hydrodynamic radius in the range from 1 to 200 nm, determined by dynamic light scattering.

Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.

Abstract: Compositions comprising the following components: (A) at least one carboxyl-containing polysiloxane which has at least one structural element of the formula Ia, Ib or Ic ?per molecule, (B1) at least one aprotic substance which is liquid at room temperature or (B2) at least one organic solvent, (C) up to 2% by weight, based on the weight of the composition, of water, the variables being defined as follows: R1 is hydrogen, hydroxyl, C1-C6-alkyl, C6-C14-aryl or C1-C4-alkoxy, R2 is hydrogen or C1-C6-alkyl, Z1 is C2-C25-alkylene, C3-C10-cycloalkylene, C6-C14-arylene, —[(CH2)n—NR2—(CH2)m]p, n and m are integers which are identical or different and are from 1 to 10, p is an integer from 1 to 5, A1 is C2-C20-alkylene, unsubstituted or substituted by R3 and/or R4, —CH?CR3—, R3 and R4 are identical or different and are selected from hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C14-aryl and C1-C4-alkoxy; it being possible for R3 and R4 to be linked to one another with formation of a mono- or bicyclic syste

Abstract: An apparatus and a process for closed loop control of a motion quantity representing the vehicle motion which means determine the yaw rate of the vehicle, the longitudinal speed of the vehicle, and the transverse acceleration of the vehicle. Moreover, the apparatus influences the forward moment and/or the braking moment of individual wheels of the vehicle. The apparatus further determines a transverse acceleration component dependent on the roadway transverse inclination, as well as correcting the transverse acceleration of the vehicle at least as a function of the transverse acceleration component dependent on the roadway transverse inclination. The determination of the transverse acceleration component dependent on the roadway transverse inclination and also the correction of the transverse acceleration of the vehicle as carried out in a stable state of the vehicle characterized by the yaw rate and the transverse acceleration.

Abstract: A rotation rate sensor is described that operates on the principle of a resonant vibration gyrometer and is excited by an amplitude-regulated oscillator loop. This sensor is used for instance to ascertain the yaw speed of a vehicle. The effect of Coriolis acceleration is evaluated, which is a measure for the current yaw speed. To monitor the operability of the sensor and the associated electronics, an integrated self-test function is used, which as a so-called BITE function introduces a defined interference variable after actuation of a test input. This defined interference variable leads to an estimatable output voltage, whose occurrence is evaluated for error detection.

Abstract: A method for improving the controllability of motor vehicles during braking wherein desired slip values are determined and adjusted with the aid of a wheel slip controller. According to the method, the following are measured: the yaw rate .psi., the steering angle .delta., the wheel speeds V.sub.Ri, the inlet pressure P.sub.inlet or wheel brake pressure P.sub.i, and, if required, the engine speed and the throttle valve angle. The following variables are estimated using the measured values: the longitudinal vehicle speed V.sub.X, the longitudinal vehicle acceleration V.sub.X, the wheel slip values .lambda..sub.i, the braking forces F.sub.Bi, the tire forces F.sub.Ri, and the transverse speed V.sub.Y. Desired slip values .lambda..sub.i * are then determined from these measured and estimated variables with the aid of a simple vehicle model and supplied to the slip controller to control the vehicle wheel brake pressure.