摘要:
A method for producing a polyoxyalkylene polyol which comprises subjecting propylene oxide and ethylene oxide to ring-opening addition polymerization with an initiator in the presence of a catalyst, wherein the polyoxyalkylene polyol is a polyoxyalkylene polyol obtained by subjecting propylene oxide to ring-opening addition polymerization with an initiator in the presence of a double metal cyanide complex catalyst to form an oxypropylene block chain, subjecting ethylene oxide and propylene oxide to ring-opening addition polymerization randomly to form an oxyalkylene random chain, changing the catalyst and subjecting ethylene oxide to ring-opening addition polymerization in the presence of an alkali metal catalyst to form an oxyethylene block chain, and the polyoxyalkylene polyol is a polyoxyalkylene polyol having a hydroxyl value of from 5 to 56 mgKOH/g, a proportion of an initiator residue of at most 25 mass %, a proportion of the oxypropylene block chain of from 5 to 50 mass %, a total oxyethylene group content of from 5 to 60 mass %, and a ratio of primary hydroxyl groups among terminal hydroxyl groups of at least 60 mol %.
摘要:
The present invention provides a bump-joining apparatus, a bump-joining method, and a semiconductor component-manufacturing apparatus whereby bumps and electrode portions of circuit board are perfectly joined with higher join strength than in the conventional art. The apparatus includes a vibration generation device, a pressing device and a control unit, wherein bumps are pressed to electrode portions of a circuit board and vibrated with ultrasonic waves after reaching an initial contact area before reaching a join-completed-contact area at a completion of the joining, so that the bumps are more perfectly joined to the electrode portion than in the conventional art which vibrates the bump only after reaching the join-completed-contact area. Larger join strength is achieved than in the conventional art.
摘要:
A resilient polyurethane foam produced by using a polyether polyol produced by reacting alkylene oxides with a polyhydroxy compound having at least 2 hydroxyl groups as an initiator in the presence of the catalyst for alkylene oxide ring-opening polymerization of the present invention, which is excellent in foam physical properties, vibration characteristics and molding properties.
摘要:
A document feeder to be mounted atop an image reading device having a stationary optical system disposed under a contact glass. The document feeder includes a document original plate for holding thereon document originals, a document original feeding mechanism for feeding a document original from the document original plate onto a contact glass, a document original transporting mechanism for transporting the document original fed by the document original feeding mechanism along the upper surface of the contact glass, a document original discharging mechanism for discharging the document original transported by the document original transporting mechanism, and a document original discharge plate for receiving the document original discharged by the document original discharging mechanism. The document original feeding mechanism, the document original transporting mechanism and the document original discharging mechanism are integrally supported in a unit body to constitute a single unit.
摘要:
A sheet feeding apparatus having a feeding roller for feeding a sheet, a support shaft forwardly and reversely rotatable integrally with the feeding roller and a stopper disposed upstream of the feeding roller in the sheet feeding direction for temporarily regulating the feed of a sheet to the feeding roller. When the rotation in one direction of the feeding roller is transmitted to a locking member through a one-way clutch, the locking member is rotated to lock the stopper. When the feeding roller is rotated in the opposite direction, the locked state of the stopper is released.
摘要:
In an information processing apparatus having a central processing unit, input/output units controlled by the central processing unit such as a liquid crystal display, a hard disk drive, a PCMCIA controller and a floppy disk drive, and a battery for supplying power to the central processing unit and the input/output units, a desired operating time of the information processing apparatus is set in a desired operating time setting circuit. Next, a residual capacity detecting circuit detects a residual capacity of the battery. On the basis of the desired operating time set by the desired operating time setting circuit and an operable time of the information processing apparatus calculated from the residual capacity of the battery detected by the residual capacity detecting circuit, the central processing unit commands an operating condition changing circuit to change operating conditions such that the desired operating time becomes longer than the operable time. The operating condition changing circuit controls power consumption in the input/output units such that the changed operating conditions are met, thus ensuring the desired operable time of the information processing apparatus to be realized.
摘要:
An image-forming machine comprises a sheet member conveying passage extending through a transfer zone and a fixing zone, a sheet member-feeding means for feeding a sheet member onto the sheet member conveying passage, and a sheet member conveying means for conveying the sheet member through the sheet member conveying passage. A housing of the image-forming machine has a lower surface defined by an intermediate lower wall and an upper surface defined by an intermediate upper wall, and forms a space of which the front surface is opened. The downstream end portion of the sheet member conveying passage extends along a one side portion of the intermediate lower wall on the lower side thereof. The one side portion of the intermediate lower wall is defined by the opening/closing member, and opening/closing member is brought to the open position to open the downstream end portion of the sheet member conveying passage. The sheet member conveying means includes a pair of register rollers. After the leading edge of the sheet member delivered onto the sheet member conveying passage is brought into contact with the nip of the pair of register rollers, the pair of register rollers are preliminarily rotated for only a predetermined period of time.
摘要:
Bile acids in the feces can be easily examined on a mass scale. Further, colon cancer at an early stage can be detected and the latent colon cancer can be diagnosed. The concentration of primary bile acid (CA) in the feces is measured by an ELISA method with the use of an anti-bile acid antibody for primary bile acid which comprises anti-cholic acid-24-bovine serum-rabbit serum, the concentration of secondary bile acid (DCA) in the feces is measured by an ELISA method with the use of an anti-bile acid antibody for secondary bile acid which comprises anti-deoxycholic acid-24-bovine serum-rabbit serum, and the concentration ratio (DCA/CA) of the secondary bile acid to the primary bile acid is calculated from the measured values.
摘要:
A liquid crystal display device having a phase difference plate and a reflector, which is capable of providing a bright display. When the value of the ratio K of the product .DELTA.n1.d1, where .DELTA.n1 is the optical anisotropy and d1 is the thickness in the vertical direction of the phase difference plate to the product .DELTA.n2.d2, where .DELTA.n2 is the optical anisotropy and d2 is the thickness of the phase difference plate when inclined at 45.degree. from the vertical direction of the phase difference plate in the direction of the optical axis, is in the range of K.gtoreq.1.20, the optical axis of the phase difference plate is disposed at an angle in the range of from about +30.degree. to about +60.degree. or in the range of from about -30.degree. to about -60.degree. with respect to the direction of observation, where the values of angles are positive when measured clockwise from the observation direction, whereas, when K.gtoreq.1.20, the optical axis of the phase difference plate is disposed at an angle in the range of from about +30.degree. to +120.degree. with respect to the observation direction.
摘要:
A polymer film with a refractive index of n.sub.D .gtoreq.1.60, an Abbe number of .nu..sub.D .gtoreq.30.0 and a glass transition temperature of Tg=60.degree. to 160.degree. C. is oriented at least in one direction to provide an oriented film. It is arranged that this oriented film has a retardation value of R=60-1000 nm and a wavelength dispersion value of .nu..sub.RF .gtoreq.1.10. An optically compensating film comprising this oriented film or an optical compensator comprising the oriented film and an optically isotropic film laminated at least on one side thereof is used for color compensation in a liquid crystal display panel. In this manner, a liquid crystal display device solving the long-standing problems of coloration and low contrast ratio is obtained.