摘要:
A stabilized aqueous solution of hydrogen peroxide comprising at least one metal element selected from the group consisting of tantalum, zirconium, and niobium.The aqueous solution of hydrogen peroxide has excellent storage stability and heat stability.
摘要:
A process for producing a 2-tertiary-alkyl substituted anthraquinone, characterized by carrying out catalytic oxidation of a diphenylmethane type compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are different from each other, and independently hydrogen or tertiary-alkyl having 4 or 5 carbon atoms with the proviso that one of R.sub.1 and R.sub.2 is hydrogen, and R.sub.3 is alkyl having 1-3 carbon atoms, in vapor phase in the presence of a catalyst containing vanadium and cerium is disclosed.
摘要:
An input device for an injection molding machine is constructed with an input touch panel fitted over a display screen. The input touch panel is formed greater than the display screen. A panel extension portion of the input touch panel is located outside of the display screen. At least one key portion having at least one specific key is displayed on the panel extension portion. By this arrangement, no separate switch panel, such as a membrane sheet switch, is necessary and all inputs can be made by touch operation.
摘要:
The present invention provides an input device for an injection molding machine, having a touch panel-type display screen. The display screen has set value displays for displaying set values of molding conditions. The set value display consists of a plurality of set value windows. Touching one of the set value windows makes an input element for inputting a set value of the molding conditions be displayed on the display screen. The input element constitutes a scale. Touching the scale changes numeric values displayed in the set value windows.
摘要:
A process for producing a 2-tertiary-alkyl substituted anthraquinone, characterized by carrying out catalytic oxidation of a diphenylmethane type compound having the formula ##STR1## wherein R.sub.1 and R.sub.2 are different from each other, and independently hydrogen or tertiary-alkyl having 4 and 5 carbon atoms with the proviso that one of R.sub.1 and R.sub.2 is hydrogen, and R.sub.3 is alkyl having 1-3 carbon atoms, in vapor phase in the presence of a catalyst comprising vanadium oxide is disclosed.
摘要:
Even when a power switch is turned off, the controller of an injection molding machine does not shut off a power supply immediately. The controller determines whether the present state of the injection molding machine is a previously-set confirmation-requiring state, such as a lockup state of a mold clamping unit using a toggle link mechanism, or a nozzle touch state of an injection unit. When the present state is not the confirmation-requiring state, the controller shuts off the power supply. When the present state is the confirmation-requiring state, the controller displays on a display screen a confirmation window for confirmation of power shut off. The controller shuts off the power supply in accordance with a shut-off operation performed on the basis of the confirmation window.
摘要:
A synthetic resin laminate having both phtochromism characteristic and polarization characteristic consisting essentially of two transparent synthetic resin layers, a resin layer having phtochromism characteristic and a resin layer having polarization characteristic interposed between said two transparent synthetic resin layers and an adhesive layer to adhere said resin layer having polarization characteristic to said one transparent synthetic resin layer, wherein said one transparent synthetic resin layer to contact said resin layer having phtochromism characteristic has a thickness of 50 &mgr;m or above and a retardation value of 150 nm or below, or 3000 nm or above.
摘要:
The present invention provides an effective oxygen generating materials, carbon dioxide absorbing materials, and transport system and transport method of live fishery products for use upon transporting live fishery products. An oxygen generating materials of the present invention is prepared by packaging solid peroxide and peroxide decomposition catalyst with a moisture-permeable material having a cup method moisture permeability (40° C., 90% RH) of more than 20 g/m2/24 hr and being impervious to water at normal pressure. Furthermore, a carbon dioxide absorbing materials are prepared by packaging alkaline earth metal hydroxide and/or oxide with a gas-permeable material having a Gurley method gas permeability (JIS P8117) of 0.1˜3000 sec./100 ml of gas and being impervious to water at normal pressure. Moreover, the transport system of live fishery products are a transport system wherein the oxygen generating materials and carbon dioxide absorbing materials pertaining to the present invention are sealed inside a transport bag.
摘要:
A method of producing 1,2,4-triazole, comprising a step of subjecting a ketazine, water and formamide to a cyclization reaction. The ketazine and water are added simultaneously to formamide kept at a cyclization temperature. Then, ketone by-produced during the cyclization reaction is distilled off while maintaining the reaction mixture at a cyclization temperature to complete the cyclization reaction, thereby obtaining 1,2,4-triazole. The use of the ketazine in place of hydrazine makes the energy-consuming hydrolysis step in the conventional hydrazine production unnecessary. Therefore, the method of the invention is advantageous over the known methods in energy consumption and production cost.
摘要:
A process for metal plating a resin molded article molded from a resin composition containing as main components, a polyphenylene sulfide resin and a glass-reinforcing agent, which comprises, before the metal plating,(1) treating the resin molded article by immersion in a mixed liquid of nitric acid and a fluoride salt or in a mixed liquid of nitric acid and hydrofluoric acid (A treatment), thentreating the resulting resin molded article by immersion in an organic polar solvent-containing liquid (B treatment), and further, if necessary,treating the resulting resin molded article by immersion in an aqueous floride salt or hydrofluoric acid solution (C treatment).