Abstract: The objective of the present invention is to provide a method for producing an isocyanate compound safely and efficiently. The method for producing an isocyanate compound according to the present invention is characterized in comprising the steps of irradiating a high energy light to a halogenated methane at a temperature of 15° C. or lower in the presence of oxygen, and further adding a primary amine compound to be reacted without irradiating a high energy light.

Abstract: An ion exchanger unit that adsorbs impurities in a liquid to be tested, and a controller that switches between causing the flow of the liquid to be tested into the ion exchanger unit and the flow of eluent to elute the impurities adsorbed in the ion exchanger unit into the ion exchanger unit.

Abstract: The objective of the present invention is to provide a method for producing a carbonyl halide efficiently to the used halogenated hydrocarbon. The method for producing a carbonyl halide according to the present invention is characterized in comprising the steps of preparing a mixed gas comprising oxygen and a C2-4 halogenated hydrocarbon having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo, and flowing the mixed gas and irradiating a high energy light to the flowed mixed gas.

Abstract: The objective of the present invention is to provide a method for producing a carbonyl halide efficiently to the used halogenated methane. The method for producing a carbonyl halide according to the present invention is characterized in comprising the steps of preparing a mixed gas comprising oxygen and a halogenated methane having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo, and flowing the mixed gas and irradiating a high energy light to the flowed mixed gas.

Abstract: The objective of the present invention is to provide a method for producing a halogenated carbonyl safely and efficiently. The method for producing a halogenated carbonyl according to the present invention is characterized in comprising the step of applying ultrasound to a composition containing a C1-4 halogenated hydrocarbon having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo in the presence of oxygen to decompose the C1-4 halogenated hydrocarbon.

Abstract: The objective of the present invention is to provide a method for producing an isocyanate compound safely and efficiently. The method for producing an isocyanate compound according to the present invention is characterized in comprising the steps of irradiating a high energy light to a halogenated methane at a temperature of 15° C. or lower in the presence of oxygen, and further adding a primary amine compound to be reacted without irradiating a high energy light.

Abstract: The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently even without using a base. The method for producing a carbonate derivative according to the present invention is characterized in comprising the step of irradiating a high energy light to a composition comprising the halogenated methane and the hydroxy group-containing compound in the presence of oxygen, wherein a molar ratio of a total usage amount of the hydroxy group-containing compound to 1 mole of the halogenated methane is 0.05 or more.

Abstract: The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently. A method for producing a polycarbonate is characterized in comprising the step of irradiating a light to a composition comprising a C1-4 halogenated hydrocarbon, the specific diol compound and the specific base in the presence of oxygen.

Abstract: The objective of the present invention is to provide a method for producing a fluorinated carbonate derivative in a safe and efficient manner. The method for producing a fluorinated carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a fluorine-containing compound having a nucleophilic functional group and a base in the presence of oxygen.

Abstract: The objective of the present invention is to provide a method for producing a carbonate derivative in a safe and efficient manner. The method for producing a carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a nucleophilic functional group-containing compound and the specific base in the presence of oxygen.

Abstract: The objective of the present invention is to provide a method for producing a fluorinated carbonate derivative in a safe and efficient manner. The method for producing a fluorinated carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a fluorine-containing compound having a nucleophilic functional group and a base in the presence of oxygen.

Abstract: The objective of the present invention is to provide a method for producing a carbonate derivative in a safe and efficient manner. The method for producing a carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a nucleophilic functional group-containing compound and the specific base in the presence of oxygen.

Abstract: A die opening and closing device for a movable die plate and a fixed die plate includes a toggle link disposed between the movable die plate and a die tightening housing, a cross head for flexing the toggle link, and a motor-driven ball screw penetrating through the die tightening housing and inserted into the cross head, and this die opening and closing device is provided with die thickness adjusting means for adjusting the die thickness S when the die is tightened by extension of the toggle link, and ball screw rotation control means for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method.

Abstract: A die opening and closing device for a movable die plate and a fixed die plate includes a toggle link disposed between the movable die plate and a die tightening housing, a cross head for flexing the toggle link, and a motor-driven ball screw penetrating through the die tightening housing and inserted into the cross head, and this die opening and closing device is provided with die thickness adjusting means for adjusting the die thickness S when the die is tightened by extension of the toggle link, and ball screw rotation control means for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method.

Abstract: A sliding structure for high load and having high strength as well as sufficient lubricating performance, wherein a solid lubricating material is buried in a sliding surface, an oil reservoir of a predetermined capacity is formed on the reverse of the surface; oil supplying pores extend from the oil reservoir to the sliding surface; and a continuous pore material inserted into the oil supplying pore which provides a limited supply of oil to the sliding surface concerned.

Abstract: A polyvinyl chloride resin pipe is produced for use as an inner lining for repairing or reinforcing sewerage pipes or other existing pipes. An airtight packing is disposed in the resin pipe and between a traction device and a reheating device, with the traction device pulling forwards the resin pipe which has been extruded from an extruder. An internal pressure is imparted to the resin pipe by introducing compressed air from a forward end thereof so that the resin pipe is depressed flat while being reeled up on a drum in such a state that an internal space is maintained without failure within the resin pipe. In use, a heating medium is fed into the resin pipe from its end so that it rapidly becomes soft uniform as a whole, whereby a defect-free inner lining is formed in the existing pipes.

Abstract: A polyvinyl choride resin pipe serves as an inner lining material for the existing pipes. The resin pipe is formed of a resin composition which comprises as a main component either a polyvinyl chloride having a degree of polymerization DP of 600 to 1,050, or a mixture of 40 to 60% by weight of a polyvinyl chloride having a lower average degree of polymerization DP.sub.L of 400 to 600 and 60 to 40% by weight of another polyvinyl chloride having a higher average degree of polymerization DP.sub.H of 1,050 to 1,350. The resin composition further comprises 3 to 25 parts by weight of a modifying agent blended with 100 parts by weight of the main component. The modifying agent is composed of MMA- and/or MBS-modifiers.

Abstract: A method and system is described for sensing an abnormality in a degassing flow path of a vacuum die casting machine. When a vacuum device is operated to degas a gas in a cavity of a mold, a gas speed flowing through a piping is detected. The gas speed thus detected is compared with the predetermined maximum proper air speed value to determine whether the maximum gas speed value falls into the tolerance limits of the maximum proper air speed value or not. In this comparison, when the detected value departs from the tolerance limits, it is regarded that a clogging has occurred in the degassing system and an alarm is issued.