Abstract: Disclosed is a polyfluoroalkylphosphonic acid represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OH)2, wherein n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3, or a salt thereof, which is a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and being usable as an active ingredient of a mold-releasing agent. The polyfluoroalkylphosphonic acid is produced by hydrolyzing a polyfluoroalkylphosphonic acid diester represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OR)2, wherein R is a C1-C4 alkyl group, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3.

Abstract: A polyfluoroalkylphosphonic acid ester represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OR)2 (R is an alkyl group having 1 to 4 carbon atoms, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3) is produced by a process of reacting a polyfluoroalkyl iodide represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cI with a trialkyl phosphite represented by the general formula: P(OR)3 or by a process of reacting a polyfluoro-1-alkene represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)bCH?CH2 with a dialkyl phosphite represented by the general formula: (RO)2P(O)H.

Abstract: A transmission apparatus including: a communication unit that performs communication with a receiving apparatus; a transmission processing unit that transmits transmission data to the receiving apparatus via the communication unit; and a reproduction quality adjustment unit that adjusts a reproduction quality of the transmission data based on a retransmission request frequency that indicates a number of times that a retransmission request with respect to the transmission data is received from the receiving apparatus via the communication unit over a predetermined period of time.

Abstract: A mixture of polyfluoroalkadienes represented by the general formulae: CF3(CF2)nCF?CH(CF2)m+1CH?CH2 [Ia] and CF3(CF2)n+1CH?CF(CF2)mCH?CH2 [Ib], wherein n is an integer of 0 to 5, and m is an integer of 0 to 6, is obtained as a mixture fraction of products [Ia] and [Ib] by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I [II], with an organic basic compound. The polyfluoroalkadiene mixture is compounds having a perfluoroalkyl group in which the number of successive CF2 groups is 5 or less, and is effectively used as a copolymerizable monomer in the production of resinous or elastomeric fluorine-containing copolymers, which are used as active ingredients of surface-treating agents, such as water- and oil-repellents and mold-release agents.

Abstract: Disclosed is a graft copolymer in which a polyalkylene glycol or an alkyl ether thereof is graft-copolymerized with a polyfluoro-1-alkene represented by the general formula: CnF2n+(CH2CF2)a(CF2CF2)bCH?CH2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3). The graft copolymer is an oligomer compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and having, when used as an active ingredient of a mold-releasing agent, mold release performance equivalent to that of a compound having a perfluoroalkyl group containing 8 or more carbon atoms.

Abstract: Disclosed is a mold-releasing agent comprising, as active ingredients, a graft copolymer (A) in which a polyalkylene glycol or an alkyl ether thereof is graft-copolymerized with a polyfluoro-1-alkene represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)bCH?CH2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3), and a polyfluoroalkylphosphonic acid represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OH)2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3, and c is an integer of 1 to 3) or a salt thereof (B). The mold-releasing agent comprises, as an active ingredient, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and having mold release performance equivalent to or more than that of a mold-releasing agent comprising a compound having a perfluoroalkyl group containing 8 or more carbon atoms as an active ingredient.

Abstract: Disclosed is a polyfluoroalkylphosphonic acid represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OH)2, wherein n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3, or a salt thereof, which is a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and being usable as an active ingredient of a mold-releasing agent. The polyfluoroalkylphosphonic acid is produced by hydrolyzing a polyfluoroalkylphosphonic acid diester represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP (O)(OR)2, wherein R is a C1-C4 alkyl group, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3.

Abstract: A control device, which handles a network system in which electronic devices installed in each of multiple rooms are connected via a communication network and each electronic device can perform communication via the communication network, includes: a control unit to selectively set a first control mode in which operation control according to operation input is performed as to a particular single electronic device, a second control mode in which operation control according to operation input is performed in common as to electronic devices installed in the same room, and a third control mode in which operation control according to operation input is performed in common as to electronic devices connected to the communication network, as an operation control mode according to predetermined operation input, and to generate a control command; and a transmission unit to transmit a control command that the control unit has generated according to the control mode.

Abstract: A water- and oil-repellent includes, as an active ingredient, a fluorine-containing copolymer including as a copolymer unit (A) at least one of perfluoroalkylalkyl acrylates and corresponding methacrylates, (B) benzyl acrylate or benzyl methacrylate represented by the general formula: CnF2n+1CmH2mOCOCR?CH2 (wherein R represents a hydrogen atom or a methyl group; n represents 4, 5, or 6; and m represents 1, 2, 3, or 4), (C) a fluorine-free polymerizable monomer other than benzyl acrylate and benzyl methacrylate, and (D) a cross-linkable group-containing polymerizable monomer.

Abstract: A transmission device includes: a communication unit performing communication with one or more receiving devices; a distance measurement unit measuring direct distances to the receiving devices; a transmission data setting unit setting transmission data including content data including audio and time information indicating the time when reproduction of content data is started for the receiving devices whose distances are measured based on the measured distances; and a transmission processing unit transmitting transmission data set by the transmission data setting unit to corresponding receiving devices of transmission targets all at once. The transmission data setting unit sets time when the device itself starts reproduction of the content data as a reference time, and sets the time information for synchronizing audio indicated by the content data reproduced in the device itself with audio indicated by the content data reproduced in the receiving devices for each receiving device using the set reference time.

Abstract: A transmission device includes: a communication unit that communicates with a plurality of reception devices; a transmission data setting unit that compares the number of the reception devices as transmission targets of transmission data representing content and a predetermined threshold value and sets the transmission data to be transmitted to the reception devices to each reception device based on a result of the comparison such that a transmission rate for transmission that represents an amount of data transmission necessary to transmit the transmission data to the reception devices does not exceed a reference transmission rate representing an amount of data transmission at which data can be transmitted in the communication, and the transmission data having relatively high reproduction quality is transmitted to the reception devices as the transmission targets; and a transmission processing unit that concurrently transmits the transmission data set by the transmission data setting unit to the corresponding

Abstract: A polyfluoro-1-alkene represented by the general formula: CF3(CF2)nCH2(CF2)mCH?CH2 [I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)nCH2(CF2)m(CH2CH2)I [II], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, with an inorganic basic compound in the presence of a phase transfer catalyst. Alternatively, the polyfluoro-1-alkene is produced by reacting the polyfluoroalkyl iodide [II] with a nitrogen-containing organic basic compound, and is obtained product [I] as one fraction thereof. By the copolymerization of the polyfluoro-1-alkene with other fluorinated olefin monomers, a fluorine-containing copolymer having excellent light transmittance in the visible light range is formed.

Abstract: Disclosed is a method for producing an aqueous emulsion containing a fluorine-containing copolymer comprising, as copolymerizable monomers, (A) at least one of a perfluoroalkylalkyl acrylate and a corresponding methacrylate represented by the general formula: CnF2n+1CmH2mOCOCR?CH2, wherein R is hydrogen or methyl group, n is 4, 5, or 6, and m is 1, 2, 3, or 4; (B) benzyl acrylate or benzyl methacrylate; (C) a fluorine-free polymerizable monomer other than benzyl acrylate and benzyl methacrylate; and (D) a crosslinkable group-containing polymerizable monomer; the copolymer being produced by previously subjecting 10 to 80 wt. % of the total weight of component (A) and 0 to 60 wt.

Abstract: A polyfluoro-1-alkene represented by the general formula: CF3(CF2)nCH2(CF2)mCH?CH2[I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)nCH2(CF2)m(CH2CH2)I [II], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, with an inorganic basic compound in the presence of a phase transfer catalyst. Alternatively, the polyfluoro-1-alkene is produced by reacting the polyfluoroalkyl iodide [II] with a nitrogen-containing organic basic compound, and is obtained product [I] as one fraction thereof. By the copolymerization of the polyfluoro-1-alkene with other fluorinated olefin monomers, a fluorine-containing copolymer having excellent light transmittance in the visible light range is formed.

Abstract: A mixture of polyfluoroalkadienes represented by the general formulae: CF3(CF2)nCF?CH(CF2)m+1CH?CH2 [Ia] and CF3(CF2)n+1CH?CF(CF2)mCH?CH2 [Ib], wherein n is an integer of 0 to 5, and m is an integer of 0 to 6, is obtained as a mixture fraction of products [Ia] and [Ib] by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I [II], with an organic basic compound. The polyfluoroalkadiene mixture is compounds having a perfluoroalkyl group in which the number of successive CF2 groups is 5 or less, and is effectively used as a copolymerizable monomer in the production of resinous or elastomeric fluorine-containing copolymers, which are used as active ingredients of surface-treating agents, such as water- and oil-repellents and mold-release agents.

Abstract: A fluorine-containing polymer comprising a fluoroalkyl alcohol (meth)acrylic acid derivative represented by a general formula, CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 (in the formula, R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, preferably 2 to 4, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3) containing in 5 to 100 wt % as a polymerization unit. A organic solvent solution or aqueous dispersion of the fluorine-containing polymer is effectively used as, for example, a surface-modifying agent such as a water- and oil-repellent or an oil barrier.

Abstract: Disclosed is a mixture of fluoroalkyl alcohols represented by the general formulae: CF3(CF2)n(CH?CF)a(CF2CF2)b(CH2CH2)cOH [Ia] and CF3(CF2)n-1(CF?CH)aCF2(CF2CF2)b(CH2CH2)cOH [Ib], wherein n is an integer of 1 to 5, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3. This fluoroalkyl alcohol mixture is produced by the reaction of a fluoroalkyl iodide represented by the general formula: CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2CH2)cI [II], with N-methylformamide, followed by hydrolysis in the presence of a basic compound.

Abstract: Disclosed is (1) a mixture of fluoroalkyl alcohol-unsaturated carboxylic acid derivatives represented by the general formulae: CF3(CF2)n(CH?CF)a(CF2CF2)b(CH2CH2)c OCOCR?CH2 and CF3(CF2)n?1(CF?CH)a CF2(CF2CF2)b(CH2CH2)cOCOCR?CH2, wherein R is a hydrogen atom or a methyl group, n is an integer of 1 to 5, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3; (2) a fluorine-containing polymer containing the mixture as a polymerization unit; and (3) a water- and oil-repellent comprising the fluorine-containing polymer as an active ingredient. The fluoroalkyl alcohol-unsaturated carboxylic acid derivatives are produced by an esterification reaction of a mixture of fluoroalkyl alcohols represented by the general formulae: CF3(CF2)n(CH?CF)a(CF2CF2)b(CH2CH2)cOH and CF3(CF2)n?1(CF?CH)aCF2(CF2CF2)b, (CH2CH2)cOH, with acrylic acid or methacrylic acid.

Abstract: Provided is a terminally iodized polyfluoroalkane represented by the general formula: CnF2n+1(CHXCFY)s+p(CF2CF2)t+rI ??[I] (in the formula, X and Y are each a hydrogen atom or a fluorine atom, wherein when Y is a fluorine atom, X is also a fluorine atom; n is an integer of 1 to 6; s+p is an integer of 1 to 5 and denotes the number of CHXCFY group; and t+r is 0 or an integer of 1 to 6 and denotes the number of tetrafluoroethylene skeleton). The terminally iodized polyfluoroalkane is produced by telomerizing a fluorine-containing olefin CHX?CFY and tetrafluoroethylene, successively, to CnF2n+1I in the presence of a peroxide initiator.

Abstract: A water- and oil-repellent comprising an aqueous dispersion of a fluorine-containing copolymer including as a copolymerization unit (a) a perfluoroalkylalkyl (meth)acrylate represented by the general formula CnF2n+1CmH2mOCOCR?CH2 (wherein R represents hydrogen atom or methyl group; n represents 4, 5, or 6; and m represents 1, 2, 3, or 4), (b) benzyl (meth)acrylate, (c) a fluorine-free polymerizable monomer other than benzyl (meth)acrylate, and (d) a cross-linkable group-containing polymerizable monomer; and a blocked isocyanate added to the aqueous dispersion in a weight ratio of 0.05 to 3.0 to the weight of the solid content of the aqueous dispersion.