摘要:
An elastic fluorocopolymer that is excellent in processability in molding, particularly stability in molding, and in vulcanizability and flow properties in molding and processing, gives a vulcanized rubber excellent in permanent compression set, and is prepared by two-stage emulsion polymerization of vinylidene fluoride with at least one other monomer using a water-soluble radical polymerization initiator and an oil-soluble one wherein the water-soluble radical polymerization initiator is used in an amount of as small as 0.001 to 0.03 wt.% based on the total weight of the copolymer to be formed in both stages.
摘要:
The invention aims to provide a fluorine-containing elastomer composition for a heat dissipation material having excellent flexibility and thermal conductivity. The invention relates to a fluorine-containing elastomer composition for a heat dissipation material, including a fluorine-containing elastomer having a Mooney viscosity at 121°C of 10 or lower and an insulating thermal conductive filler.
摘要:
A device for drying substrate comprising a processing vessel housing a specified number of substrates such as semiconductor wafers installed erectedly in parallel to one another, a first substrate supporting member supporting substrates within the processing vessel, the processing fluid supplying section supplying to the processing vessel, the processing fluid for performing processing such as cleaning processing on the substrates, a processing fluid exhausting section exhausting processing fluid from the processing vessel, and a drying fluid supplying section supplying, to the processing vessel, the liquid drops of drying fluid for performing drying processing on the substrates.
摘要:
A process for preparing a fluorine-containing polymer through emulsion polymerization method which enhances productivity while maintaining excellent physical properties of the fluorine-containing polymer and comprises (a) a first polymerization step for emulsion-polymerizing a fluorine-containing monomer or a mixture of a fluorine-containing monomer and a non-fluorine-containing monomer in an aqueous medium in the presence of a radical polymerization initiator and an emulsifying agent, (b) a dilution step for diluting the obtained aqueous emulsion of polymer particles with water to reduce the number of emulsified polymer particles per unit amount of aqueous medium in the emulsion and a concentration of emulsifying agent, and (c) a second polymerization step for emulsion-polymerizing a fluorine-containing monomer and/or a non-fluorine-containing monomer in the obtained diluted emulsified solution.
摘要:
An air conditioning system includes an air conditioner (11) and an air conditioning controller (50, 55), in which the air conditioning controller has, as a control mode, a first mode in which the air conditioner performs a preheating operation or a precooling operation at or after a first time (te) set in advance and at or before a second time (ts) at which the target space is used next, the first mode is a control mode of operating the air conditioner and stopping the air conditioner when the temperature of the target space increases to a preheating temperature (T H ) higher than a target temperature (T M ) of the target space at the second time (ts) or when the temperature of the target space decreases to a precooling temperature (T L ) lower than the target temperature (T M ), the preheating temperature (T H ) is set such that the temperature of the target space becomes the target temperature (T M ) or higher than the target temperature (T M ) at a point of the second time (ts), and the precooling temperature (T L ) is set such that the temperature of the target space becomes the target temperature (T M ) or lower than the target temperature (T M ) at the point of the second time (ts).
摘要:
The present invention provides the fluorine-containing elastic copolymer which is excellent in molding processability, particularly molding stability and further vulcanization properties, flowability at molding and compression set of a vulcanized rubber. The copolymer is prepared through emulsion polymerization of vinylidene fluoride and at least one of other monomers in two polymerization stages by using a water-soluble radical polymerization initiator in a very small amount of 0.001 to 0.03 % by weight based on the total weight of copolymers prepared in the two stages and an oil-soluble radical polymerization initiator. The present invention also provides a process for preparation thereof and a vulcanizable composition containing the same.
摘要:
Provided is a refrigeration apparatus for preventing reduction in performance due to start/stop operation. In an air conditioning apparatus (1), it is possible to suppress an outdoor unit (2) from being in a resting state or a low capabilities state due to the number of rotations of a compressor (21) being returned to a region where rotation control using an inverter is possible by indoor units which are in a thermo-off state among of a plurality of indoor units (4a, 4b, 4c) being forcibly switched to a thermo-on state since it is assumed that the number of rotations of the compressor (21) will be equal to or less than the region where rotation control using an inverter is possible when there is a low capabilities state where the outdoor unit (2) seems likely to switch to a resting state.
摘要:
A process for fluoropolymer production which is effective in improving the productivity of the emulsion polymerization method while maintaining the excellent material properties of the fluoropolymer, which comprises: (a) a first polymerization step in which a fluoromonomer or a monomer mixture of a fluoromonomer and a nonfluorinated monomer is emulsion-polymerized in the presence of a radical polymerization initiator and an emulsifying agent in an aqueous medium; (b) a dilution step in which the resultant aqueous emulsion of polymer particles is diluted with water to reduce both the number of emulsified polymer particles per unit amount of the aqueous medium and the concentration of the emulsifying agent; and (c) a second polymerization step in which the fluoromonomer and/or nonfluorinated monomer is emulsion-polymerized in the diluted emulsion.
摘要:
A substrate drying device, comprising a treatment chamber (2) storing a specified number of substrates (1) such as semiconductor wafers installed erectedly in parallel with each other, a first substrate supporting part (3) supporting substrates (1) inside the treatment chamber (2), a treatment liquid feed part (4) feeding, to the treatment chamber (2), the treatment liquid for performing a treatment such as a cleaning treatment on the substrates (1), a delivery part (5) delivering treatment liquid from the treatment chamber (2), and a fluid feed part for drying (6) feeding, to the treatment chamber (2), the fluid drops of drying fluid for performing drying treatment on the substrates (1).