摘要:
The invention is to prevent positional deviation of a sealing valve, improve bubble releasability during atmosphere introduction, and stably supply ink to a recording head. The configuration is provided with an opening 270 on an upper portion of a cylindrical regulating body 165 of a joint base 140 in a state where an ink tank 100 is mounted on a connection unit 10 of a printer.
摘要:
The invention is to prevent positional deviation of a sealing valve, improve bubble releasability during atmosphere introduction, and stably supply ink to a recording head. The configuration is provided with an opening 270 on an upper portion of a cylindrical regulating body 165 of a joint base 140 in a state where an ink tank 100 is mounted on a connection unit 10 of a printer.
摘要:
An ink tank for being installed in an ink jet recording apparatus to supply ink thereto, including an ink storage portion, one side surface of a casing of the ink tank in which side surface an opening for supplying ink to the apparatus is formed, and a joint member for joining the one side surface to the apparatus by engaging with a connection member of the apparatus. The joint member has a welding portion for being welded to the one side surface along a peripheral portion of the opening, the welding portion corresponding to the peripheral portion; and a hollow portion forming a positioning hole for inserting therein and engaging therewith the connection member for determining a relative position of the apparatus and the one side surface. The hollow portion is provided on the outside of the welding portion and abuts to the one side surface without being welded.
摘要:
A method of producing a liquid cartridge having an identification part corresponding to a type of liquid held inside the liquid cartridge, the method includes preparing the liquid cartridge having a plurality of protrusions protruding from an external wall; and forming the identification part corresponding to the type of liquid by melting at least one of the protrusions. In this way, a strong mis-loading prevention part that prevents mis-loading of the liquid cartridge into a liquid consuming apparatus can be constituted without generating waste.
摘要:
A carrier for use in the catalyst for the production of an epoxide is obtained by preparing a carrier precursor containing (a) α-alumina, (b) silicon or a compound thereof, and (c) at least one element selected from the class consisting of germanium, tin, lead, phosphorus, antimony, and bismuth or a compound thereof and subsequently heat-treating the precursor in non-oxidative gas. The catalyst for the production of the epoxide is obtained by having silver deposited on this carrier and the epoxide is obtained from a corresponding unsaturated hydrocarbon of 2–4 carbon atoms with a high selectivity by using the catalyst.
摘要:
A silver catalyst excelling in catalytic performance and permitting production of ethylene oxide with a high selectivity for a long time, a method for the production of ethylene oxide by the use of the silver catalyst, and a method for ideal manufacture of the silver catalyst are disclosed. The silver catalyst is formed by depositing silver on a carrier having .alpha.-alumina as a main component and used for the production of ethylene oxide, which carrier of the silver catalyst has undergone the following treatment capable of yielding a wash exhibiting a resistivity index of not less than 10,000 .OMEGA..multidot.cm (25.degree. C.):(Method of treatment)In a conical beaker having an inner volume of 500 ml, 300 ml of the carrier is placed, dried therein at 120.degree. C. for two hours, and boiled in conjunction with (water absorption +220) ml of pure water added thereto under normal pressure at 90.degree. C. for 30 minutes, providing that the term "water absorption" as used herein refers to what is expressed by the following formula (1):Water absorption=[300 (ml).times.packing specific gravity (g/ml).times.water absorption (wt. %)]/[Specific gravity of water (g/ml)](1)
摘要:
A monolithic organic porous body includes a continuous macropore structure that includes cellular macropores that overlap to form openings having an average diameter of 20 to 200 μm, the monolithic organic porous body having a thickness of 1 mm or more and a total pore volume of 0.5 to 5 ml/g, an area of a skeleton observed within an SEM image of a section of the continuous macropore structure (in a dry state) being 25 to 50%. A monolithic ion exchanger is produced by introducing an ion-exchange group into the monolithic organic porous body. The monolithic organic porous body and the monolithic ion exchanger are chemically stable, have high mechanical strength, and ensure a low pressure loss when fluid passes through. The monolithic organic porous body and the monolithic ion exchanger may be used as an adsorbent having a large adsorption capacity or an ion exchanger having a large ion-exchange capacity.
摘要:
A catalyst for the production of ethylene oxide is formed by causing a carrier having &agr;-alumina as a main component thereof to incorporate therein silica and a metal or a compound of at least one element selected from the elements of the groups Ib and IIb in the periodic table of the elements such as, for example, silver oxide and depositing silver on the carrier. The carrier is obtained by mixing at least &agr;-alumina, a silicon compound, an organic binder, and a compound of at least one element selected from the elements of the groups Ib and IIb in the periodical table of the elements and then calcining the resultant mixture at a temperature in the range of 1,000°-1,800° C.
摘要:
A catalyst for the production of ethylene oxide by the vapor phase oxidation of ethylene under specific conditions such that an amount of chlorine suffered to adhere thereto is not more than 2 mol % per mol of silver after the duration of the reaction caused under the specific conditions has totalled 240 hours from the start of the reaction, a silver catalyst for the production of ethylene oxide which incorporates therein an organic nitrogen compound, methods for the production of the catalysts mentioned above, and a method for the production of ethylene oxide by the gaseous-phase oxidation of ethylene with a molecular oxygen-containing gas in the presence of such a catalyst.