摘要:
A process for producing an ether compound represented by the general formula (II) or (III): ##STR1## wherein R.sup.1 and R.sup.2 represent each an alkyl group or a cycloalkyl group and n represents an integer of 1 to 50, which comprises bringing an acetal compound represented by the general formula (I): ##STR2## into reaction with hydrogen in the presence of a solid catalyst comprising (A) nickel in an amount corresponding to 10 to 70% by weight of metallic nickel, and (B) at least one compound selected from the group consisting of oxides of silicon, aluminum, magnesium, titanium, and zirconium; and synthetic or natural inorganic oxides containing one or more of these oxides as the constituents thereof. A vinyl ether polymer having a terminal ether group can be obtained with a good yield without causing corrosion of the apparatus used for the reaction.
摘要:
A process for efficiently producing a high purity compound having oxygen which has a high volume specific resistance and a lubricating oil comprising the high purity compound having oxygen are provided. The process for producing a high purity compound having oxygen selected from a group consisting of high purity polyvinyl ether compounds, high purity polyalkylene glycol compounds, high purity polyol ester compounds, high purity cyclic polyether compounds and high purity carbonate compounds comprises a step of treating with an adsorbent at least one crude compound having oxygen selected from a group consisting of crude polyvinyl ether compounds, crude polyalkylene glycol compounds, crude polyol ester compounds, crude cyclic polyether compounds and crude carbonate compounds. The lubricating oil comprises the high purity compound having oxygen obtained in accordance with this process.
摘要:
The present invention provides an inflator including: a pressurized gas filled with a pressurized gas and having a first end and a second end; a gas generator being connected to the first end, and including therein an ignition device and a molded article of a gas generating; a diffuser portion connected to the second end, and being provided with a gas discharge port; a communication path provided between the pressurized gas chamber and the gas generator and closed by a rupturable plate; a cap provided to cover the rupturable plate from the pressurized gas chamber side and having a plurality of gas holes formed at a circumference thereof, the minimum diameter (d min) of the gas hole being equal to or smaller than the larger one of the minimum diameter (D min) and the length (L) of the molded article of the gas generating composition.
摘要:
A managing system manages not only an endoscope washer-disinfector performing cleaning and disinfection with an insertion tube of an endoscope but also an endoscope apparatus performing an endoscopic examination using the endoscope. The system comprises an acquiring unit and a manger. The acquiring unit acquires information indicative of a finish time of the endoscopic examination which is the newest and performed by the endoscope apparatus. The manager manages states of the cleaning and disinfection performed by the endoscope washer-disinfector depending on the information indicative of the finish time of the endoscopic examination acquired by the acquiring unit. Every time when an endoscopic examination is finished, the information indicative of the finish time of the endoscopic examination is updated. For example, a length of an elapsing time from the finish of each endoscopic examination is reflected in how the cleaning and disinfection is performed.
摘要:
An endoscope washer-disinfector cleans and disinfects an endoscope with a duct. A brush cassette is detachably loaded to a loading part of the washer-disinfector and comprises a brush element and a shaft holding the brush element. Inside the cassette, first and second members are formed to hold the shaft tight therebetween for making the shaft advance and retreat to and from the duct. A lock device separates the second member from the first member so that the second member is located at a first position. The lock device locks the separated second member, when the brush is not loaded on the loading part. When the cassette is loaded to the loading part, the lock device also unlocks the locked second member responsively to an operating force and allows the second member to be moved to a second position where the first and second members hold tight the shaft.
摘要:
A forceps cover sheath includes, detachably from a forceps, a cover sheath main body covering at least a link mechanism out of the forceps which has the link mechanism at a distal end portion of an elongated shaft and which has, at a distal end portion of the link mechanism, a treatment portion operated by operation of the link mechanism.
摘要:
A gas generator for an airbag is provided which is small and lightweight and enables an efficient use of the filter. This gas generator includes: a first member with one end open; a second member closing the open end of the first member; an ignition unit and a gas generating unit, both installed in a container formed by the first and second members; a filter arranged along an outer circumference of the container to enclose gas passing ports formed in the container; and a strip plate member arranged along an outer circumference of the filter, having a width smaller than the width of the filter and adapted to prevent a radial expansion of the filter, or a mesh member covering the filter.
摘要:
A cavity-retaining tool for bone surgery includes a cavity-retaining sheath which is inserted into the body and forms a cavity to act as a work space for bone surgery, a treatment channel which is placed in the cavity-retaining sheath and guides treatment tools necessary for the treatment of a bone into the space for bone surgery, an observation tool which is attached to the cavity-retaining sheath and by which to observe the operation field within the space for bone surgery, and a fitting portion which is placed at a tip of the cavity-retaining sheath and fits the tip of the cavity-retaining sheath to a bone.
摘要:
An inflator includes: a pressurized gas filled with a pressurized gas and having a first end and a second end; a gas generator being connected to the first end, and including therein an ignition device and a molded article of a gas generating; a diffuser portion connected to the second end, and being provided with a gas discharge port; a communication path provided between the pressurized gas chamber and the gas generator and closed by a rupturable plate; a cap provided to cover the rupturable plate from the pressurized gas chamber side and having a plurality of gas holes formed at a circumference thereof, the minimum diameter (d min) of the gas hole being equal to or smaller than the larger one of the minimum diameter (D min) and the length (L) of the molded article of the gas generating composition.
摘要:
In an endoscope washing and disinfecting apparatus, a duct of the endoscope is washed by a washing brush having a brush chip and a shaft having a distal end to which the brush chip is detachably loaded. A brush-chip accommodating unit has a brush-chip accommodating chamber communicable to a flow passage of a nozzle detachably coupled to the duct. A shaft accommodating unit has a shaft accommodating chamber communicable to the brush-chip accommodating chamber, the shaft being selectively accommodated in the shaft accommodating chamber. A shaft driving unit drives the shaft to be fed to the duct from the shaft accommodating chamber and to be returned to the shaft accommodating chamber from the duct. In the brush-chip accommodating chamber, coupling and decupling means allow the brush chip to be coupled and decoupled with and from the shaft, during the shaft is driven to go back and forth.