Kabushiki Kaisha Toshiba

Midori Anzen Co., Ltd.

Kossan Sdn Bhd

Hartalega Sdn Bhd

Taichi Ogawa

Takeshi Ueno

Norihide Enomoto

Tetsuro Itakura

Takayuki Miyazaki

Osamu Watanabe

Junji Shibasaki

Kaname Shibata

Yosuke Toyama

Kei Shiraishi

Seek Ping Lee

Eng Long Ong

Lawrence Siau Tian Lim

Masanori Furuta

Yusuke Sato

Tatsuya Hasegawa

Shoji Ootaka

Kenichi Yanagisawa

Nobuyuki Matsumoto

Kam Hon Kuan

Mun Leong Kuan

Eu Jin Kuan

Mei Ling Cheah

Bin Mat Satar Mohd Zaidi

Daisuke Hirama

Provided is a dip molding emulsion including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20% by weight to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1% by weight to 10% by weight, and the butadiene-derived structural unit in an amount of 50% by weight to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10% to 70% as determined by a specific measurement method.

Dip molding emulsion, method of producing glove, and glove

Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.

Dip molding composition, method of producing glove, and glove

Provided is a dip molding composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20 to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1 to 10% by weight, and the butadiene-derived structural unit in an amount of 50 to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10 to 70% as determined by a specific measurement method.

A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.

Composition for dip molding

Glove, composition for dip molding, and method for producing glove

Provided is a method of producing a glove, the method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the step of adjusting the pH to be 9 or higher using an ammonium compound or an amine compound and leaving a glove emulsion composition to stand with stirring; (3) the dipping step of immersing the glove forming mold, to which the coagulant has thus adhered in the step (1), in the glove emulsion composition; (4) the gelling step of leaving the glove forming mold, to which the glove emulsion composition has thus adhered, to stand at a temperature for a period that satisfy specific conditions; (5) the leaching step of removing impurities from a cured film precursor thus formed on the glove forming mold; (6) the beading step of, after the leaching step, winding the cuff portion of the resulting glove; (7) the precuring step of heating and drying the cured film precursor that has been subjected to the beading step; and (8) the curing step of heating the cured film precursor at a specific temperature for a specific period to obtain a cured film.

Method of manufacturing gloves, glove, and emulsion composition for gloves

Provided is: A glove dipping composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain; a polycarbodiimide; zinc oxide and/or an aluminum complex; water; and at least one pH modifier selected from an ammonium compound and an amine compound, in which glove dipping composition the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in its molecular structure and has an average polymerization degree of 3.8 or higher and a carbodiimide equivalent of 260 to 600; the polycarbodiimide is added in an amount of 0.1 to 4.0% by weight and zinc oxide and/or the aluminum complex is/are added in an amount of 0.1 to 5.6% by weight with respect to the total solid content of the glove dipping composition; and the glove dipping composition has a pH of 9.0 to 11.5.

Glove dipping composition, method for manufacturing gloves, and gloves

According to an embodiment, a thermoelectric generator includes a thermoelectric element and a DC to DC converter. The thermoelectric element converts heat energy into electric energy. The DC to DC converter increases an input voltage applied by the thermoelectric element. The input voltage is higher than a voltage which is half an open voltage of the thermoelectric element.

Thermoelectric generator

A DC-DC converter includes an input terminal, multiple output terminals, an inductor, a first switch, a first condenser, a second switch and a switch controller. One end of the inductor is connected to the input terminal. The first switch is subjected to on-off control to change a current flowing through the inductor. The first condenser has one end connected between the inductor and a first output terminal, which is one of the multiple output terminals, and has the other end connected to a ground. The second switch is connected between the inductor and the first condenser. The switch controller controls the second switch to turn on when the first switch is turned off while a first output voltage from the first output terminal is smaller than a predetermined first threshold value.

DC-DC converter

Provided is a resin composition having weather resistance and low-temperature impact resistance, which are the problems of a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin, and sustaining the chemical resistance and room-temperature impact resistance of poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin. It is a resin composition containing a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin and a polycarbonate resin, in which the poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin is contained at 60 to 95% by weight and the polycarbonate resin is contained at 5 to 40% by weight.

Resin composition and molded body

According to one embodiment, a DC-DC converter, includes: an inductor configured to be supplied with an input voltage; a plurality of rectifiers connected in parallel to the inductor; a plurality of p-MOS transistors connected in series to the respective rectifiers; a switch configured to connect an output side of the inductor to a reference potential; and a control circuit configured to control the p-MOS transistors and the switch. The control circuit performs control to supply a voltage to turn on a first p-MOS transistor selected from among the p-MOS transistors to a gate terminal of the first p-MOS transistor, and to supply a voltage depending on an output voltage of the first p-MOS transistor to a gate terminal of a second p-MOS transistor other than the first p-MOS transistor among the p-MOS transistors.

DC-DC converter and power source device

An electronic circuit according to one embodiment of the present invention includes a first logic circuit, a second logic circuit, first and second capacitors, and a connection circuit. The first logic circuit has a first output terminal from which a first output signal based on a first input signal is output. The second logic circuit outputs a second output signal obtained by inversion of the first output signal is output in a steady state. The first and second capacitors each have one terminal at a first voltage. The connection circuit connects one of the first output terminal and the second output terminal to the first capacitor, and the other to the second capacitor. The connection circuit interchanges connection destinations of the first capacitor and the second capacitor in accordance with a received first connection control signal.

Electronic circuit and boost converter

A DC-DC converter including an input, an output, a conversion circuit, and a switch control circuit. The input inputs input voltage. The output outputs output voltage. The conversion circuit a plurality of semiconductor switches, and converts the input voltage to the output voltage by switching operation of one or more semiconductor switches of the plurality of semiconductor switches. The switch control circuit selects one or more semiconductor switches performing the switching operation from the plurality of semiconductor switches based on the input voltage and a predetermined lookup table, and controls the switching operation of the one or more semiconductor switches.

DC-DC converter with input voltage responsive lookup table control

A boost converter includes an input, an output, a startup circuit, a first switch, a comparator circuit, a switching circuit, a control circuit, a converter circuit, and a switch control circuit. The startup circuit boosts an input voltage up to a first output voltage. The comparator circuit outputs a first signal corresponding to the difference between the output voltage and a first reference voltage. The switching circuit outputs a second voltage based on the first signal. The control circuit outputs a second signal corresponding to the difference between the output voltage and a second reference voltage. The converter circuit boosts the input voltage based on the second signal, and outputs the output voltage. The switch control circuit generates a third signal based on the second signal, and outputs the third signal to the first switch.

Boost converter

An emulsion composition includes (1) a carboxylated acrylonitrile butadiene elastomer containing an acrylonitrile residue in an amount of 23 to 30 wt % and an unsaturated carboxylic acid residue in an amount of 3 to 8 wt %, and (2) a polyacrylonitrile butadiene elastomer containing an acrylonitrile residue in an amount of 20 to 50 wt % and having a weight average molecular weight (in terms of styrene) of 7,000 to 50,000. The weight ratio of the component (1)/the component (2) is from 70/30 to 90/10.

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Tokyo, Japan

Taichi Ogawa