Abstract: A ventilation blower includes an inverter main circuit, a motor body driven by the main circuit, a control circuit that controls the main circuit, and a storage device. The storage device stores an angular velocity of a motor rotor and a torque current value at a first operation point at which to obtain a first air volume on a first load characteristic, and the angular velocity and the torque current value at a second operation point at which to obtain a second air volume on the load characteristic, the second air volume being different from the first air volume. The control circuit calculates, from the angular velocities and the torque current values at the first and second operation points, the angular velocity and the torque current value at a third operation point at which to obtain a third air volume on the load characteristic.

Abstract: A permanent-magnet synchronous motor includes an inverter power circuit that converts direct-current power to three-phase alternating-current power, a motor bodydriven by the three-phase alternating-current power, a current detector that calculates an excitation current value and a torque current value from motor stator current values and an estimated value of a magnetic pole position of the rotor, a magnetic pole position detector that determines, for output to the current detector, the estimated value from the excitation current value, the torque current value, and supply voltage information, a voltage calculation unit that calculates, by means of the excitation current value, the torque current value, and an angular velocity calculated from the estimated value, the supply voltage information that causes the torque current value to approximate a torque current command value, and an inverter controller that controls the inverter power circuit on a basis of the supply voltage information and the estimated val

Abstract: A permanent-magnet synchronous motor includes an inverter power circuit that converts direct-current power to three-phase alternating-current power, a motor bodydriven by the three-phase alternating-current power, a current detector that calculates an excitation current value and a torque current value from motor stator current values and an estimated value of a magnetic pole position of the rotor, a magnetic pole position detector that determines, for output to the current detector, the estimated value from the excitation current value, the torque current value, and supply voltage information, a voltage calculation unit that calculates, by means of the excitation current value, the torque current value, and an angular velocity calculated from the estimated value, the supply voltage information that causes the torque current value to approximate a torque current command value, and an inverter controller that controls the inverter power circuit on a basis of the supply voltage information and the estimated val

Abstract: An object of the present invention is to provide an antifouling paint composition which shows an excellent antifouling effect in seawater for a long period of time, and has excellent adhesion and recoating properties to a substrate. The present invention relates to an antifouling pain composition comprising a copolymer which is obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (a) having two (meth)acryl end groups, and which contains bivalent metal atom. The copolymer is also obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (b) having one (meth)acryl end group, and metal atom containing polymerizable monomer (c,) having two unsaturated groups and metal atom selected from Mg, Zn, and Cu.

Abstract: An object of the present invention is to provide an antifouling paint composition which shows an excellent antifouling effect in seawater for a long period of time, and has excellent adhesion and recoating properties to a substrate. The present invention relates to an antifouling pain composition comprising a copolymer which is obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (a) having two (meth)acryl end groups, and which contains bivalent metal atom. The copolymer is also obtained by polymerizing a monomer mixture comprising silicon-containing polymerizable monomer (b) having one (meth)acryl end group, and metal atom containing polymerizable monomer (c1) having two unsaturated groups and metal atom selected from Mg, Zn, and Cu.

Abstract: A metal-containing monomer dissolved mixture comprising a reaction product of an inorganic metal compound with a carboxyl group-containing radical polymerizable monomer, an organic solvent including at least an alcohol-based solvent, and water, wherein the water content is from 0.01 to 30% by weight; a metal-containing resin obtained by copolymerizing the metal-containing monomer (A) in this dissolved mixture with the other radical-polymerizable unsaturated monomer (B); an antifouling paint composition obtained by using this metal-containing resin; and an antifouling paint composition comprising a divalent metal-containing resin (C), a compound (D) of R1—SH (wherein, R1 represents an organic group having 1 to 30 carbon atoms.), and copper oxide (E), are disclosed.

Abstract: A metal-containing monomer dissolved mixture comprising a reaction product of an inorganic metal compound with a carboxyl group-containing radical polymerizable monomer, an organic solvent including at least an alcohol-based solvent, and water, wherein the water content is from 0.01 to 30% by weight; a metal-containing resin obtained by copolymerizing the metal-containing monomer (A) in this dissolved mixture with the other radical-polymerizable unsaturated monomer (B); an antifouling paint composition obtained by using this metal-containing resin; and an antifouling paint composition comprising a divalent metal-containing resin (C), a compound (D) of R1—SH (wherein, R1 represents an organic group having 1 to 30 carbon atoms.), and copper oxide (E), are disclosed.

Abstract: An antifouling paint composition comprising, as a vehicle, a copolymer from a monomer mixture comprising of (a1) a metal-containing polymerizable monomer having two unsaturated groups and (a2) a metal-containing polymerizable monomer represented by the following formula (I): wherein R1 represents a hydrogen atom or a methyl group; M represents Mg, Zn or Cu; and R2 represents an organic acid residue. An antifouling paint composition comprising, as a vehicle, a copolymer from a monomer mixture comprising (a) a metal-containing polymerizable monomer and (b) a polymerizable monomer represented by the following formula (II): wherein R3 reprsents a hydrogen atom or a methyl group; R4 represents an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group or a phenyl group; and R5 represents an alkyl having 1 to 10 carbon atoms, a cycloalkyl group or a phenyl group.

Abstract: A thermosetting coating composition comprising an acrylic copolymer (A) containing vinyl monomer units each having an .alpha.,.beta.-dicarboxylic acid anhydride group and vinyl monomer units each having an .alpha.,.beta.-dicarboxylic monoester group in a total amount of 5-40 wt % and containing the vinyl monomer units with .alpha.,.beta.-dicarboxylic acid anhydride groups at 0.3-5 wt %, and an acrylic copolymer (B) with epoxy groups.

Abstract: A hand dryer in which a channel-like hand insertion unit 5 opening at the front face and side faces is formed in the front face of a case 6 which functions as an outer shell. Upper and lower blowout nozzles 32 and 33 are disposed in the upper and lower faces of the hand insertion unit 5. A high-pressure air flow generation device 7 supplies high-pressure air flow to the blowout nozzles 32 and 33. A high-speed wind generated in the hand insertion unit 5 blows water on hands to the inner portion of the hand insertion unit 5. The blown water is drained to the outside of the hand insertion unit 5, through drainage holes 18 which are disposed at lateral ends of the bottom face of the hand insertion unit 5. Thereby, the blown water from the hands can be smoothly drained without remaining in the hand insertion unit.

Abstract: A method for forming a coating film is here disclosed which comprises the steps of coating a member with a coating material containing a pigment for a thermosetting base coat, overcoating the coated member with a coating material for a thermosetting clear coat in a wet-on-wet coating manner, and then thermosetting the uncured coating films simultaneously;a binder component in the coating material for the base coat comprising50 to 90% by weight of an acrylic copolymer having a hydroxyl value of from 40 to 80 mg KOH/g and an acid value of from 0.5 to 30 mg KOH/g and a glass transition temperature of from -40.degree. to 20.degree. C. which is obtained by copolymerizing 10 to 40% by weight of a hydroxyl group-containing (meth)acrylic ester, 0.2 to 10% by weight of a carboxyl group-containing vinyl monomer, 30 to 89.

Abstract: A coating composition comprising (A) 100 parts by weight of an acrylic copolymer and (B) from 0 to 40 parts by weight of a curing agent, wherein said acrylic copolymer is a copolymer of a monomer mixture composed essentially of:(1) from 1 to 50% by weight of 1,4-butanediol mono(meth)acrylate,(2) from 0.2 to 10% by weight of an .alpha.,.beta.-monoethylenic unsaturated carboxylic acid, and(3) from 40 to 98.8% by weight of other copolymerizable monomers,provided that the total of the 1,4-butanediol mono(meth)acrylate and hydroxyl group-containing monomers in the copolymerizable monomers, is not more than 50% by weight of the monomer mixture.