摘要:
This invention relates to a stove-enamel coating medium based on at least one binder vehicle selected from amino(meth)acrylate resins and/or epoxide-amine addition products comprising cationic groups and/or groups which can be converted into cationic groups. The binder vehicle additionally comprises cyclic carbonate groups and/or at least one crosslinking agent which comprises cyclic carbonate groups is present, and the binder vehicle also contains secondary amino groups and/or hydroxyl groups.
摘要:
This invention relates to a process for the production of a multilayer lacquer coating on a substrate having an autophoretically coatable, metallic surface, in which a first priming coat of an autophoretically depositable coating composition is autophoretically deposited and then stoved and one or more subsequent coats are then applied by spraying, wherein the autophoretically depositable coating composition contains one or more constituents having an adhesion promoting action and/or wherein before one or more further coats are applied by spraying, the stoved priming layer produced by autophoretic deposition is physically and/or chemically treated and/or provided with an adhesion promoting coat.
摘要:
Vehicles, which are water dilutable after neutralization with bases, have an acid number of 5 to 60 and are obtainable by polymerization or copolymerization of 10 to 90 parts by weight of one or several acidic, phosphoric acid-functional unsaturated monomers, which are polymerizable by a free radical mechanism and can be present in admixture with one or several ethylenically unsaturated monomers, which are also polymerizable by a free radical mechanism, with addition of a free radical initiator, in the presence of 90 to 10 parts by weight of one or several epoxide resins or modified epoxide resins, in one or several solvents. Methods of synthesizing them, aqueous coating materials containing them and their use.
摘要:
Process for producing a multilayer lacquer coating, in which a primer of an electrophoretically depositable aqueous coating agent (1) is electrophoretically applied on to an electrically conductive substrate and is then stoved, whereupon a color-giving and/or effect-producing base lacquer coat of an aqueous coating agent (II) is applied and stoved and this coat is then provided with one or more clear lacquer coatings, in which processa) as the coating agent (I), a coating agent which, in the stoved state, will produce an electrically conductive primary coat is used,b) the base lacquer coat is formed by an electrophoretically depositable aqueous coating agent (II) by a process of electrophoretical deposition,c) the overall dry layer thickness of the dry lacquer coat or dry lacquer coats is about 40 and 80 .mu.m, andd) the overall dry layer thickness of the multilayer lacquer coating is about 80 to 110 .mu.m.
摘要:
In a process for producing a multilayer lacquer coating, eg for motor vehicles, a first coating layer of an aqueous coating agent (1) is electrophoretically applied on to an electrically conductive substrate and is then stoved. As the coating agent (I), a coating agent which, in the stoved state, will produce an electrically conductive coating layer is used. An electrically insulating second coating layer of an aqueous coating agent (II), which differs from (I), is electrophoretically deposited and stoved. A third basic lacquer coating layer of a colour-giving and/or effect-producing coating agent is applied, and a fourth transparent coating layer of a clear lacquer coating agent is applied, the last-mentioned two coats being stoved together. One or more further transparent coating layers may be applied.
摘要:
Plastics moulded parts, suitable for the motor vehicle sector, consisting of a transparent plastics material the rear face of which is provided with a colour- and/or effect-producing lacquer.
摘要:
Process for the production of a three-dimensional substrate provided with a protective and decorative laminar structure, in which a primer layer of a coating composition (I) which is electrically conductive in the stoved state is applied without spraying onto an electrically conductive substrate and stoved, whereupon a substrate not yet in the desired three-dimensional shape is shaped, whereupon a second coating layer of an electrophoretically depositable coating composition (II) is electrophoretically deposited and stoved and whereupon a plastic film is applied.
摘要:
Regulation of energy supplied to an electric motor from an energy supply system including a fuel cell and an energy storage buffer such as a battery, improves the dynamic response of the motor by adding current from the energy storage buffer to the current from the fuel cell during acceleration.
摘要:
A method and an apparatus produce current values dependent on the position of the accelerator pedal controlling the power of one or more electric drives for moving a mobile device that is energised by a fuel cell. The time required by the drive or drives to respond to a change in the desired current value produced as a function of the position of the accelerator pedal is kept as small as possible by producing a current value—convertible into a desired torque value—which is held continuously at a value sufficient to ensure that the output voltage of the fuel cell just avoids undershooting a critical limit.
摘要:
A process for the effect coating of polar plastics parts having a grained surface, characterised in that a) a first coating layer, which is free from effect pigments and modified polyolefines and which comprises a coating medium based on physically drying binder vehicle systems which contain one or more polyurethane resins and/or oligomeric urethanes and which do not chemically crosslink at the temperatures employed in process step f), is applied at a dry coat thickness of 5 to 40 .mu.m, b) is dried at 20.degree. to 80.degree. C. down to a residual content of 3 to 20% by weight of the volatile fractions which are contained in the applied coating film at the temperature employed, c) is overcoated wet-into-wet with an effect base lacquer, d) is dried at 20.degree. to 80.degree. C. down to a residual content of 3 to 20% by weight of the volatile fractions which are contained in the applied coating film at the temperature employed, e) is overcoated wet-into-wet with a liquid clear lacquer which chemically crosslinks with the formation of covalent bonds at the drying temperatures employed in process step f), and f) the three coating layers which are obtained are jointly dried or hardened at temperatures of 60.degree. to 110.degree. C.