Abstract: Systems and methods for displaying corresponding content for vehicle services using a distributed set of electronic devices are provided. For example, a computer-implemented method includes obtaining data associated with a vehicle service instance. The vehicle service instance is associated with a request for a vehicle service for a user. The method includes determining, based on the data associated with the vehicle service instance, a first advertisement content item for a display device positioned on an exterior of a vehicle assigned to the vehicle service instance and a second advertisement content item for a user device associated with the vehicle service instance. The method includes communicating data that initiates the display of the first advertisement content item for the display device positioned on the exterior of the vehicle and data that initiates the display of the second advertisement content item for the user device.

Abstract: Compositions comprising (a) an epoxy resin, (b) a hardener for the epoxy resin, (c) a product of the reaction of a microgel containing carboxylic acid groups and a nitrogen-containing base, and (d) an electrically conducting filler combination comprising, based on the total amount of filler, at least 75% by weight of graphite, are particularly suitable for producing biopolar plates.

Abstract: Compositions comprising (a) an epoxy resin, (b) a hardener for the epoxy resin, (c) a product of the reaction of a microgel containing carboxylic acid groups and a nitrogen-containing base, and (d) an electrically conducting filler combination comprising, based on the total amount of filler, at least 75% by weight of graphite, are particularly suitable for producing biopolar plates.

Abstract: Compositions comprising (a) an epoxy resin, (b) a hardener for the epoxy resin, (c) a product of the reaction of a microgel containing carboxylic acid groups and a nitrogen-containing base, and (d) an electrically conducting filler combination comprising, based on the total amount of filler, at least 75% by weight of graphite, are particularly suitable for producing bipolar plates.

Abstract: A composition comprising (a) an epoxy resin having, on average, more than one 1,2-epoxy group per molecule, (b) a polyol as epoxy resin curing agent and (c) a solid microgel-amine adduct as accelerator has high latency, good storage stability and a wide processing window.

Abstract: The invention relates to compositions comprising a) a polyol having on average 3 to 8 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of up to 150; b) a polyether-polyol having on average 2 to 3 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of 150 to 500 and c) a poly(oxyalkylene)polyamine having on average 2 to 4 amino groups per molecule and an average total molecular weight of between 1000 and 3000.The compositions described are distinguished by a low tendency to demix, even during prolonged storage.Reaction mixtures of the compositions described, as hardeners, and polyisocyanates of the diphenylmethane series cure fully without passing through a brittle phase. The shaped articles formed have good mechanical properties.

Abstract: The invention relates to polyol components, in particular for reaction with polyisocyanates of the diphenylmethane series, which comprisea) a polyol having a hydroxyl equivalent weight of up to 150 and a functionality of 4 to 8,b) a polyether-polyol having a hydroxyl equivalent weight of more than 1900 and a functionality of 2 to 4 andc) a polypropylene glycol having a functionality of 2 to 3, a polytetrahydrofuran, each of which has a hydroxyl equivalent weight of 150 to 500, or a mixture of the two. The polyol components are distinguished by a low tendency to demix, even during prolonged storage. Reaction mixtures of the polyol components described and polyisocyanates of the diphenylmethane series cure fully without passing through a brittle phase. The mouldings formed have good mechanical properties.

Abstract: The liquid level in a tank is determined by measuring the current supplied to an elctromagnet from which a rod having a specific gravity greater than that of the liquid is suspended in the liquid.