Abstract: A method for providing means for energizing a capacitive load. The capacitive load is connected to an alternating current power source by using a connecting device. The connecting device comprises at least one diode and connecting organs, which can be closed or open.

Abstract: A method for providing means for energizing a capacitive load. The capacitive load is connected to an alternating current power source by using a connecting device. The connecting device comprises at least one diode and connecting organs, which can be closed or open.

Abstract: A device that includes a combustion engine with a piston that is mechanically freely movable in a housing. The device permits combustion of a fuel mixture to produce a pushing force to the piston. The device includes an electromagnetic energy transducer and an external current circuit, which is connected to the energy transducer for exchange of effect in a direction to or from the energy transducer. A control unit controls the direction of the effect, which is exchanged between the energy transducer and the external current circuit, during operation of the device. Such a device can be used to generate electrical energy, and can be employed in a vehicle.

Abstract: The invention refers to a device, which includes a combustion engine (1) with a piston (2), which is mechanically freely movable in a housing (3). The device is arranged to permit combustion of a fuel mixture in order to produce a pushing force to the piston (2). The device includes an electromagnetic energy transducer (21, 22) and an external current circuit (34, 41), which is connected to the energy transducer for exchange of effect in a direction to or from the energy transducer. A control unit (12) is arranged to control the direction of the effect, which is exchanged between the energy transducer (21, 22) and the external current circuit, during operation of the device. The invention also refers to a use of such a device for generating electric energy, and a vehicle with such a device.

Abstract: The present invention discloses a continuous process and the associated system for upstaging liquid epoxy resins to produce resins with higher molecular weight. The process comprises passing continuously (i) a liquid epoxy resin having a first molecular weight, (ii) a catalyst and (iii) a compound having at least one active hydrogen or reactive functional group capable of reacting with the liquid epoxy resin in the presence of the catalyst, flow through one or more reaction chambers and under conditions effective to produce a stream comprising an upstaged epoxy resin product having a second molecular weight. The second molecular weight is higher than the first molecular weight.

Abstract: Method for preparing polyethercyclicpolyol by heating alkali and/or alkaline earth hydroxide optionally with polyol, its precursors or derivatives, admixing epoxy alcohol or epihalohydrin therewith to initiate an addition reaction, and thermally condensing the product of the addition reaction.

Abstract: Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are copolymerized with epoxy resins to form higher molecular weight polyethercyclicpolyols.

Abstract: Method for preparing polyethercyclicpolyol by heating a reaction mixture of an alkali or alkaline earth metal hydroxide with a polyol, adding epihalohydrin to initiate an addition reaction, and heating the mixture until the reaction is complete.

Abstract: Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the glycol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epoxy alcohols to form higher molecular weight polyethercyclicpolyols.

Abstract: Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are copolymerized with epoxy resins to form higher molecular weight polyethercyclicpolyols.

Abstract: Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epoxy alcohols to form higher molecular weight polyethercyclicpolyols.

Abstract: Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epihalohydrins to form higher molecular weight polyethercyclicpolyols.

Abstract: A method is disclosed for deactivating a hydrocarbyl phosphonium salt catalyst of an epoxy resin fusion reaction. The method involves contacting the hydrocarbyl phosphonium salt catalyst with a sulfonic acid, such as p-toluenesulfonic acid or methane sulfonic acid. The method is particularly suited for deactivation of moisture-resistant phosphonium salts such as methylene bis(triphenyl phosphonium halide)s.

Abstract: A capacitor bank for power factor correction and/or voltage control is connectible to an AC network through a bidirectional static switch. Voltage sensing and comparing means effect connection of the capacitor bank to the network at the moment when the instantaneous values of the mains and capacitor voltages coincide. During a predetermined time interval after disconnection of the capacitor bank from the network, the switch is periodically made conducting for keeping the capacitor charged with a voltage of constant polarity. After the end of this time interval, the switch is made non-conducting, whereby the capacitor is allowed to discharge through the discharge resistor.

Abstract: Apparatus for power factor correction of alternating current networks in a continuous fashion. A first group of reactance devices are each serially connected to the network through a switching device, and a second reactance device is connected in the network through a control device for continuous control of the reactance provided by the second reactance device. A source of control signals responds to a signal determinative of the desired reactive power and controls the switching device for step-wise varying the reactance provided thereby and likewise controlling the control device for continuous control of the reactance contributed by the second reactance device to provide for overall continuous control of reactance as a function of the signal.

Abstract: In capacitor equipment which includes a series-connection, connected to an alternating voltage network, of two anti-parallel connected thyristors, one capacitor and one reactor, a control device is connected to the control electrode of the thyristors and arranged to ignite the thyristors alternately at times in the vicinity of the peak value of the alternating voltage. A sensing member is provided for sensing an operating magnitude in the series connection and a level-sensing member is connected to the sensing member and to the control device. The level-sensing member influences the control device to produce ignition of both thyristors of the instantaneous value of the operating magnitude falls outside a pre-determined interval.

Abstract: Improved stabilized acrylate resins compositions comprise the acrylate resin and a precise amount of a stabilizing acid having a pK.sub.a less than 2.5 and having an anion having a nucleophilicity of less than 2.5. An improved method of preparing stabilized acrylate resins comprises reacting the acrylate acid, epoxide, nucleophilic catalyst and stabilizing acid simultaneously to give the stabilized acrylate resin.