Abstract: A working fluid for a heat cycle, contains: trifluoroethylene; and a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.

Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.

Abstract: There are provided an air-conditioner working fluid for electric vehicle providing sufficient cycle performance in practical use in an electric vehicle, in particular, sufficient cycle performance also in the heating time, while suppressing influence on global warming, and usable without greatly changing an air-conditioner device for a conventional working fluid, for example, HFC-134a or HFO-1234yf, and an air-conditioner working fluid composition for electric vehicle containing the same. The air-conditioner working fluid for electric vehicle contains trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene, wherein a percentage of a total amount of trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene with respect to a total amount of the working fluid is more than 90 mass % and 100 mass % or less.

Abstract: To provide a method for producing an aqueous liquid containing a vinyl polymer, of which the production efficiency is high, without lowering the yield of the vinyl polymer. When removing a hydrophilic organic solvent from a mixed liquid comprising a vinyl polymer, the hydrophilic organic solvent and water to produce an aqueous liquid containing the vinyl polymer, a liquid phase and a gas phase are formed in a closed container, a part of the liquid of the liquid phase is formed into small droplets and brought into contact with the gas phase to vaporize the hydrophilic organic solvent, and the vaporized hydrophilic organic solvent is removed from the closed container.

Abstract: A composition for a heat cycle system having less influence over the ozone layer, a low global warming potential, and excellent stability and durability is provided. A heat cycle system using the composition is also provided. The composition contains a working fluid and a phosphoric acid ester. The working fluid contains trifluoroethylene and difluoromethane. An interaction distance (Ra) between the working fluid and the phosphoric acid ester as determined from the Hansen solubility parameters is at most 15.

Abstract: To provide a heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system 10 which has a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor 11 via a condenser 12, an expansion valve 13 and an evaporator 14 to the compressor 11, wherein a conductor wire provided in the circulation path is covered with a heat resistant material having a heat resistance of at least 300° C.

Abstract: To provide a working fluid for heat cycle which has high durability, which is excellent in the compatibility with a greater variety of refrigerant oils, and which is excellent in the cycle performance (capacity), a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 21/79 to 39/61, a composition for a heat cycle system, and a heat cycle system employing the composition.

Abstract: To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent stability and durability, and a heat cycle system. A composition for a heat cycle system, which comprises a working fluid containing trifluoroethylene and difluoromethane, and a phosphoric acid ester, wherein the interaction distance (Ra) between the working fluid and the phosphoric acid ester as determined from the Hansen solubility parameters is at most 15.

Abstract: A working fluid for heat cycle which has a low global warming potential and which has self-decomposition property suppressed, a composition for a heat cycle system comprising it, and a heat cycle system employing the composition. A working fluid for heat cycle, which contains trifluoroethylene and 2,3,3,3-tetrafluoropropene, wherein the proportion of the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %, and the proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is at least 21 mass % and at most 39 mass %, a composition for a heat cycle system, which comprises the working fluid for heat cycle, and a heat cycle system, which employs the composition.

Abstract: To provide a working fluid for heat cycle which has a small temperature glide, a sufficiently low discharge temperature, high durability and less influence over global warming, and with which a heat cycle system excellent in the system maintenance properties and the cycle performance (capacity) is achieved, a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass % and at most 100 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 41/59 to 59/41, a composition for a heat cycle system, and a heat cycle system employing the composition.

Abstract: To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent durability, and a heat cycle system. A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane, and a lubricating oil, wherein the interaction distance (Ra1123) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra32) between difluoromethane and the lubricating oil.

Abstract: To provide a working fluid which has cycle performance sufficient as an alternative to R410A while the influence over global warming is sufficiently suppressed, which does not significantly increase the load to an apparatus as compared with a case where R410A is used, and which can be stably used continuously without any special measures, a composition for a heat cycle system comprising the working fluid, and a heat cycle system employing the composition. A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.

Abstract: To provide a method for stably and efficiently producing a working fluid which has less influence over global warming and which can be stably used by a usual operation even though it contains trifluoroethylene (HFO-1123) excellent in the cycle performance. A method for producing a working fluid containing HFO-1123 in a proportion of at most 70 mol %, which comprises mixing a first component containing HFO-1123 in a proportion of higher than 70 mol % stored in a first container, and a second component having no self-decomposition property stored in a second container, by supplying the first component to the second container, by supplying the second component to the first container, or by supplying both the first component and the second component to a separate third container, respectively under the predetermined conditions.

Abstract: Provided is a method for producing an ethylene-tetrafluoroethylene copolymer powder, whereby it is possible to simply and inexpensively produce an ethylene-tetrafluoroethylene copolymer powder excellent in handling efficiency from a slurry having an ethylene-tetrafluoroethylene copolymer dispersed in a fluorinated organic solvent. A method for producing an ethylene-tetrafluoroethylene copolymer powder, which comprises feeding, at a feeding linear velocity exceeding 0.10 m/sec.

Abstract: To provide a well proppant containing fluororesin-coated particles which has a sufficiently small frictional resistance of the surface, which has sufficient chemical resistance and strength, which can be produced with high productivity, of which proppant particles as a base substrate are hardly corroded, and in which the adhesion between the coating fluororesin and the proppant particles as a base substrate is high, and a method for efficiently recovering hydrocarbons from a hydrocarbon-bearing formation. A well proppant containing fluororesin-coated particles having at least part of the surface of proppant particles coated with a fluororesin (F) having a volume flow rate of from 0.

Abstract: The present invention relates to an oral care composition, which contains a compound represented by the formula (A): (wherein, R represents a substituted or unsubstituted, linear or branched alkyl group having from 6 to 18 carbon atoms, G represents a galactose residue, m stands for an integer of from 0 to 200, and n stands for an integer of from 1 to 30); and a coaggregation inhibitor of bacteria of the genus Fusobacterium and cariogenic bacteria, which contains the compound as an effective ingredient. The composition for oral cavity according to the present invention inhibits coaggregation of bacteria of the genus Fusobacterium with cariogenic bacteria so that it has an excellent caries preventive effect.

Abstract: To provide a process for safely producing a perfluoroacyl peroxide with good productivity. By supplying a perfluoroacyl halide-containing organic solvent solution, an aqueous solution of hydrogen peroxide or a metal peroxide, and an aqueous basic alkali metal compound solution to a tubular reactor to allow them to react with one another, in a flow rate ratio of, as represented by molar ratio of the compounds in the solutions, from 1.00 to 1.35 of the basic alkali metal compound and from 0.60 to 40 of hydrogen peroxide or the metal peroxide per 1 of the perfluoroacyl halide, the yield of a perfluoroacyl peroxide based on the material perfluoroacyl halide can be remarkably improved as compared with conventional technique.

Abstract: Provided is a method for producing an ethylene-tetrafluoroethylene copolymer powder, whereby it is possible to simply and inexpensively produce an ethylene-tetrafluoroethylene copolymer powder excellent in handling efficiency from a slurry having an ethylene-tetrafluoroethylene copolymer dispersed in a fluorinated organic solvent. A method for producing an ethylene-tetrafluoroethylene copolymer powder, which comprises feeding, at a feeding linear velocity exceeding 0.10 m/sec.

Abstract: The present invention relates to a preservative efficacy-enhancing agent capable of allowing an antiseptic agent to exhibit a high preservative efficacy even when the antiseptic agent is used at a low concentration; a preservative efficacy-enhancing composition containing the same; and a method for enhancing a preservative efficacy of antiseptic agents. The present invention relates to: (1) a preservative efficacy-enhancing agent for antiseptic agents which includes an amphiphilic galactose derivative (A) as an effective ingredient; (2) a preservative efficacy-enhancing composition including 0.01 to 30% by mass of an amphiphilic galactose derivative (A) and 0.01 to 1.0% by mass of an antiseptic agent (B); and (3) a method for enhancing a preservative efficacy of an antiseptic composition which includes the step of allowing 0.01 to 30% by mass of an amphiphilic galactose derivative (A) to coexist with an antiseptic agent (B) in the composition.

Abstract: A fluorine-containing copolymer, containing: chlorotrifluoroethylene monomer units (A); and monomer units (B), which are obtained by polymerizing a monomer selected from the group consisting of (i) a monomer having a formula: CH2?CHCOON(R0)2, wherein each R0 is independently a hydrogen or an alkyl group; (ii) N-vinylcaprolactam; (iii) a monomer having a formula: CH2?CR1CH2OCH2CR2?CH2, wherein R1 and R2 are each independently a hydrogen, a fluorine, or a methyl group; (iv) a monomer having a formula: CH2?CHCH2CH(CH3)—R3, wherein R3 is a linear alkyl group comprising 1 to 7 carbons; and (v) a monomer of methyl 2-fluoroacrylate, wherein a ratio, (A)/((A)+(B)), is from 3 to 99 mol %, a fluorine content of the copolymer is from 15 to 75 mol %, and a molecular weight of the copolymer is from 1,000 to 1,000,000.