A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method. The method involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent that will interact with the analyte to produce a light-absorbing reaction product when the fluid being analyzed ...

PURPOSE:To improve the reproducibility of the hysteresis characteristic and adhesion and reduce the aging change of a hysteresis by setting the thickness of a photoconductive layer to a specific value or above, and forming an insulating layer with a specific compound in a thin film EL element laminated with required layers. CONSTITUTION:The first conducting film 2, the first insulating layer 3, a ...

PURPOSE:To improve the quality of the light emitting layer of a thin film EL element and economically form a film by sintering the thin film of the fine powder made of a required material with the grain size of a specific value to form the semiconductor thin film light emitting layer. CONSTITUTION:A fine powder thin film made of one or multiple kinds of materials with the grain size 1nm or above a...

PURPOSE:To increase the withstand voltage and improve the yield by forming a reduction preventing dielectric layer and a high-withstand voltage dielectric layer on both face sides of laminated dielectric regions respectively by the preset method. CONSTITUTION:Transparent electrodes 2a-2c, the first dielectric region, a light emitting layer 5, the second dielectric layer 6, and a back electrode 7 a...

PURPOSE:To obtain a film excellent in transparency, heat resistance and chemical resistance by compounding a specific amount of a specific polycarbonate resin with a specific polybutylene terephthalate resin and subjecting the resulting compound to inflation molding under a specific condition. CONSTITUTION:15 - 45pts.wt. of a polycarbonate resin with intrinsic viscosity of 0.4 or more selected so ...

A generally hydrophobic polyester article is provided with a generally hydrophilic surface by contacting said generally hydrophobic polyester with a copolymeric material while said polyester is at a temperature above its melting point. The copolymeric composition comprises a generally hydrophobic moiety and a generally hydrophilic moiety. Also disclosed is a method for imparting the hydrophilic su...

A bearing support frame (10) is disposed within a rear end portion of a tractor front housing (1) having an open rear end. The frame is secured to internal boss (2c) on a transmission casing (1), which is fastened to the rear of the front housing and has an open front end, and is used for supporting respective one ends of transmission shafts (4, 5, 7, 8) for both of an additional speed change mech...

A composition comprised of polyvinylalcohol coating containing at least one water soluble ultraviolet absorber. In one aspect, there is provided a rubber tire having at least one surface coated with such composition.

A self-locking differential gear is disclosed which comprises a gear carrier (2) on which two crown wheels (12a,b) are journalled and a clutch (21,22) intervening between each crown wheel and the gear carrier to make a corresponding axle shaft (13a,b) unitary rotation-wise with the gear carrier; between each clutch and a ring gear (16) of the corresponding crown wheel there is mounted a device for...

Low void composites with high Tg polyimide matrices are prepared from stoichiometrically unbalanced precursors.

A preparation membrane for pervaporation which comprises a crosslinked reaction mixture of a polyvinyl alcohol or polyvinyl alcohol copolymer and a polystyrene sulfonic acid or polystyrene sulfonic acid copolymer. A method for separating a mixture of water and an organic compound by using the membrane is also disclosed.

Objects of thermoplastic polymer foam such as, e.g., sheeting of polyolefins such as polyethylene, are treated at elevated temperatures effective to rapidly purge the foam of a substantial portion of the residual blowing agent. Significant economies are achieved by reducing the amounts of residual blowing agents (such as flammable, toxic or environmentally hazardous gases) to levels presenting no ...

A reflection-preventive layer composed of a specified polyfluoro(meth)acrylate is formed on one or both of the surfaces of a transparent film of a cellulose derivative to provide a reflection-preventive pellicle film, in which the minimum light transmission in wavelengths of 350 is 450 nm is improved, the average light transmission is improved, and the adhesion of the reflection-preventive layer t...

Disclosed is an extruded, low density, non-outgassing ethylenic polymer foam containing 30-85% open cells and the remainder closed cells and having an essentially integral surface. The foam possesses superior compression recovery and lower compression resistance when compared with similarly comprised ethylenic closed cell foams and superior moisture resistance and handling characteristics when com...

A process for the preparation of flameproofed polystyrene which a) contains halohydrocarbons as flameproofing agents and which additionally contains one or more agents from the group of b) synergists for the flameproofing agent, c) stabilizers, d) antioxidants and e) additives by mixing polystyrene with one or more of agents a) to e) in a plurality of stages, wherein in a first stage the flameproo...

The transmission testing apparatus employs an electric motor (1) as a driving power source. The electric motor (1) is coupled with a speed increasing device (2) for providing engine-speed-equivalent revolution speed at low speed for realizing engine-equivalent low inertia characteristics. The electric motor (1) is associated with a control unit (18) which stores engine-torque-simulated torque vari...

A protection circuit for optical disc players which can prevent the unnecessary radiation of laser beams due to a malfunction of the player. The circuit includes a laser radiating and detecting device which detects the laser beams reflecting from an optical disc and a driving stage which receives the detected signal from the laser radiating and detecting device and controls a microcomputer to cut ...

PURPOSE:To remove deformation of a conductor by the electromagnetic force arising during use and adjust the quantity of particles so as to enable the drop of electric resistance at ultralow temperature by constituting the Al stabilizing material of Al stabilized superconducting line out of compound Al alloy wherein Al alloy particles are dispersed in high purity Al material to elevate strength. CO...