Abstract: Thermally sensitive polymers containing polymerizable carbon-carbon unsaturation and/or aliphatically bound halogen are devolatilized in a devolatilizing extruder. The thermally sensitive polymer is blended with a second polymer, which does not contain polymerizable carbon-carbon unsaturation or more than 5% by weight aliphatically bound halogen, and which has a molecular weight of from 25,000 to 175,000. The blend is then devolatilized in the extruder to produce a devolatilized polymer blend. Thermal degradation of the thermally sensitive polymer is minimized in this process.

Abstract: Thermally sensitive polymers containing polymerizable carbon-carbon unsaturation and/or aliphatically bound halogen are devolatilized in a devolatilizing extruder. The thermally sensitive polymer is blended with a second polymer, which does not contain polymerizable carbon-carbon unsaturation or more than 5% by weight aliphatically bound halogen, and which has a molecular weight of from 25,000 to 175,000. The blend is then devolatilized in the extruder to produce a devolatilized polymer blend. Thermal degradation of the thermally sensitive polymer is minimized in this process.

Abstract: A reactive extrusion process for producing an ionomer is disclosed. The process comprising adding a polymer containing a carboxyl functionality to an extruder, then homogenously melting the polymer in a melting zone of the extruder. A first melt seal zone of the extruder is formed to separate the melting zone from an injection zone where an aqueous solution of metallic ions are added to the molten polymer. The first melt seal zone is formed by increasing the pressure in the melt seal zone to a pressure which is higher than the vapor pressure of the water at any point in the injection zone and the reaction zone. The aqueous solution of metallic ions is then mixed with the polymer containing the carboxyl functionality in a reaction zone of the extruder under conditions such that the metallic ions are substantially reacted with the carboxyl functionality.

Abstract: The present invention relates to a micro-wave oven having a barbecue function, and more particularly to a heating device capable of not only the barbecuing but also broiling a fish by controlling the motor-driving duration and driving the motor, which is used for rotating a barbecue, with a single relay. The control circuit of the present invention comprises a latch circuit A which latches a voltage selection for a barbecue, a latch circuit B which latches a voltage selection for broiling a fish, a heater driving circuit E which drives a heater H according to outputs of said latch circuits A and B, an oscillation circuit C which controls the motor-driving duration according to an output of said latch circuit B, a controller for a motor-driver F which controls said motor according to an output of said oscillation circuit C, and a motor-driver circuit D which drives said motor according to a control output from said controller for the motor-driver F.