摘要:
The invention is directed to gassing stabilized aqueous coating compositions comprising A) a metallic pigment and at least one reaction product of: (a) 5 to 95 weight percent of a at least one phosphonic acid derivative selected form compound I and II wherein R1 is H or O═P(OH)2; R2 and R3 are independently H, OH or an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; and R′ is an aliphatic, cycloaliphatic and aromatic substituent having 1 to 25 carbon atoms and optionally up to 10 heteroatoms of at least one of oxygen and phosphorus; (b) 5 to 95 weight percent of a at least one compound having at least two epoxy groups and a number average molecular weight Mn of 300 to 5000 g/mol; and (c) 0 to 90 weight percent of a compound having one epoxy-functional group, wherein the proportions by weight of components (a), (b) and (c) total 100 weight percent. B) at least one metallic pigment.
摘要:
The invention relates to aqueous pigment dispersions comprising at least one dispersed pigment, an aqueous carrier and a copolymer prepared by polymerization of at least one macromonomer (1) having a terminal olefinic unsaturation with a mixture of olefinically unsaturated monomers (2), wherein the macromonomer (1) comprises 1a) 5-100% by weight of at least one polymerized acid functional unsaturated monomer, 1b) optionally at least one polymerized hydroxy functional unsaturated monomer, and optionally 1c) at least one further polymerized olefinically unsaturated monomer, and wherein the mixture of olefinically unsaturated monomers (2) comprises 2a) 5-80% by weight of at least one unsaturated vinyl aromatic monomer, 2b) 5-50% by weight of at least one vinyl monomer with at least one polar heterocyclic group with a 5 or 6 membered ring containing at least one ring nitrogen atom which is not connected to a hydrogen atom, and optionally 2c) other olefinically unsaturated monomers.
摘要:
A combustion system for a gas turbine engine provides a reaction limiting means for preventing the combustion process within the combustion chamber of the engine from proceeding towards completion by limiting the reaction rate or duration of the reaction process sufficiently such that a clean combustion gas is produced having substantially less carbon particles than for a combustor effective for essentially complete combustion. The invention also provides an efficient method of removing carbon deposits which do form by controlling the combustor shutdown technique in such a way as to cause the carbon to be oxidized. The preferred embodiment provides an aircraft emergency power unit having a high pressure air storage tank, an aviation fuel storage tank, and a combustor with a reaction limiting means which combusts pressurized air and aviation fuel in a fuel rich ratio to produce a motive combustion gas in a reaction limiting means.
摘要:
The invention relates to a method for detecting blocking or sluggishness (M1, M3) of a DC motor (2). The method comprises the following steps: applying a voltage pulse (Uv,t=Os) to the DC motor (2); monitoring a motor current (IMotor) flowing through the DC motor (2); detecting a maximum value of the motor current (IMotor) following the application of the voltage pulse; checking whether a change in the motor current (IMotor) after reaching the maximum value exceeds a specific amount; signalling the blocking or the sluggishness (M1, M3) of the DC motor (2) if the change in the motor current (IMotor) after reaching the maximum value exceeds the specific amount.
摘要:
The invention relates to aqueous pigment dispersions comprising at least one dispersed pigment, an aqueous carrier and a copolymer prepared by polymerization of at least one macromonomer (1) having a terminal olefinic unsaturation with a mixture of olefinically unsaturated monomers (2), wherein the macromonomer (1) comprises 1a) 5-100% by weight of at least one polymerized acid functional unsaturated monomer, 1b) optionally at least one polymerized hydroxy functional unsaturated monomer, and optionally 1c) at least one further polymerized olefinically unsaturated monomer, and wherein the mixture of olefinically unsaturated monomers (2) comprises 2a) 5-80% by weight of at least one unsaturated vinyl aromatic monomer, 2b) 5-50% by weight of at least one vinyl monomer with at least one polar heterocyclic group with a 5 or 6 membered ring containing at least one ring nitrogen atom which is not connected to a hydrogen atom, and optionally 2c) other olefinically unsaturated monomers.
摘要:
The invention relates to an electric motor having a stator and a rotor. The electric motor also comprises a controller, wherein the controller is connected to the stator and/or rotor, and is designed for applying current to the stator and/or rotor for rotating the rotor. According to the invention, the controller comprises a pulse width modulator designed for controlling a power output of the electric motor, in order to generate a predetermined number of different current application patterns. The current application patterns each represent a power output of the electric motor, and preferably comprise a time sequence of current pulses, each having a current pulse duration. The controller is designed for applying current to the electric motor according to at least two different current application patterns for actuating the electric motor during a time interval of actuation, such that a power output of the electric motor in the time-based average of the time interval of actuation, in particular from the beginning to the end of the time interval, is different from the power outputs represented by the current application patterns in the time interval of actuation.
摘要:
A circuit arrangement and a method for adjusting the power consumption of a load of a cooling fan motor of a motor vehicle that can be operated by a direct-voltage system has at least one semiconductor switch in the supply current circuit of the load, and a control unit for triggering the semiconductor switch or switches. The load is connectable via at least one sense field-effect transistor to the direct-voltage system the measurement output of the sense FET is connected to the control unit, and the control unit furnishes a signal corresponding to the current consumption of the load at the respective operating point.
摘要:
A circuit arrangement and a method for adjusting the power consumption of a load of a cooling fan motor of a motor vehicle that can be operated by a direct-voltage system has at least one semiconductor switch in the supply current circuit of the load, and a control unit for triggering the semiconductor switch or switches. The load is connectable via at least one sense field-effect transistor to the direct-voltage system the measurement output of the sense FET is connected to the control unit, and the control unit furnishes a signal corresponding to the current consumption of the load at the respective operating point.
摘要:
The invention provides a high water liquid enzyme prewash composition essentially free of hydrotropes, solvents and dispersants other than nonionic surfactants, and combines: a) effective amounts of a hydrolase enzyme stabilized with a soluble alkaline earth salt; b) a more hydrophilic, first nonionic surfactant having an HLB of greater than about 11; c) a more hydrophobic, second nonionic surfactant having an HLB of less than or equal to about 11; d) at least 80% or greater water; wherein the difference in HLB between said first and second nonionic surfactants is at least about 2, and said nonionic surfactants interact with said water to form an opalescent, structured liquid, said structured liquid both suspending said hydrolase and protecting said hydrolase against deactivation with said water. Suitable adjuncts, such as mildewstats/bacteristats, fragrances and dyes can be included.