A method for detection of pinholes in continuously cast metal billets (2). The billets (2) are continuously passed by a symmetrical light source (3) comprising a plurality of individual light sources arranged in a circle or in some other way such that the light falls substantially symmetrically on that part of the surface of the billet (2) which is to be examined. The surface of the billet (2) whi...

PURPOSE:To obtain thin phthalocyanine film, the difference between light absorbing behavior of which as deposited and that after annealing is large, by a method wherein specified derivative is laminated onto substrate by Langmuir- Blodgett's technique (LB technique). CONSTITUTION:Phthalocyanine derivative used is not specially limited as long as the derivative represented by the formula I is conce...

PURPOSE:To obtain an excellent display quality by using materials having the same refractive index as liquid crystal as spacer materials for gap adjustment. CONSTITUTION:Spacers having almost the same refractive index as liquid crystal enclosed between a pair of liquid crystal display substrates 11 and 12 facing each other are used as spacers 15 for gap adjustment which uniformly set the gap betwe...

The front clamp has a casing (105) which encloses a spring (105a, 105b). Two levers (108a,108b) hold the sole of the boot laterally. They are adjustable round smooth vertical pins (107a, 107b) mounted in the casing. Each lever slides on the pin and a coil spring (110a, 110b) presses it against the upper surface of the boot's sole. The casing has projecting extensions, over the pins, which are para...

Oppfinnelsen vedrører den oppdagelse at en gruppe forbind-elser som omfatter borsyre eller maleinsyre eller en blandingav borsyre med minst en syre som har et svakt nukleofilt anion,inhiberer omsetningen av et polyepoksyd med et herdemiddel vedlave temperaturer. Ved en annen utførelse er oppfinnelsenrettet på et latent katalysatorsystem tilpasset for herding avet polyepoksyd, som oppnås ved å brin...

PURPOSE:To secure low iron loss properties to the utmost, and remarkably shorten manufacturing time, by building a no-cut wound core in a coil shaped in a rectangular type by winding an amorphous magnetic alloy thin belt, generating heat in the wound core itself by excitation, and annealing the wound core. CONSTITUTION:An amorphous magnetic alloy thin belt 2a is wound around a drum 5 so to be in a...

PURPOSE:To minimize signal transmission delays between functional blocks formed on the main surface of a wafer and devices outside the functional blocks and the differences in delay times by a method wherein a plurality of signal lines which are extended from predetermined positions in the functional blocks to predetermined connection points on the wafer are provide and bonding pads which are so p...

PURPOSE:To realize a low cost and a thin shape by a method wherein a semiconductor chip is resin-sealed wholly by a transfer molding operation and, after that, metal-based board parts to be used as outer lead parts are bent and worked. CONSTITUTION:A semiconductor chip 4 is mounted, via an adhesive 2, on a semiconductor-chip mounting position on a frame-shaped metal-base board 1. Individual electr...

PURPOSE:To enhance the close contact strength of a zirconia substrate with a superconducting thick-film circuit by a method wherein a superconducting complex layer composed of silver containing platinum and bismuth oxide and a superconductor whose main components are lanthanoids and/or Y, Ba, Cu and O is formed on a stabilized zirconia substrate. CONSTITUTION:A superconducting complex layer compos...

PURPOSE:To provide the subject foam having a volume resistivity in a specific range, holding the initial hardness also after the passage of time and useful for OA equipment rolls, etc., by compounding a specified chlorinated ethylene/alpha- olefin copolymer rubber with carbon black. CONSTITUTION:The objective foam having a volume resistivity of 10<5>-10<11>OMEGA.cm consists of a molded product pre...

In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C3- to C6-hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight...

Process for the preparation of starch particles, characterised in that the granulation is performed of a mixture obtained by spraying from 1 to 20 % and preferably from 2 to 6 % by weight of a starch dressing obtained from natural starch, under mild conditions, and of 99 to 80 % by weight of natural starch particles and that the product obtained is dried, ground and screened so as to obtain aggreg...

PCT No. PCT/FR90/00574 Sec. 371 Date Jan. 29, 1992 Sec. 102(e) Date Jan. 29, 1992 PCT Filed Jul. 27, 1990 PCT Pub. No. WO91/02269 PCT Pub. Date Feb. 21, 1991.The invention relates to the principle of a probe to improve the quality of imaging logs in excavations, providing especially a good coverage of the wall 2 of the excavation by the beam of sensors 4 or electrodes. The basic component is const...

Pour pouvoir munir la planche à aiguilles (1) d'une machine à aiguilleter les voiles de fibres d'une plus grande densité d'aiguilles, afin d'améliorer la conformation de surface du voile formé, les aiguilles (2) de la planche à aiguilles (1) sont réunies en groupes d'une grande densité d'aiguilles et, à chacun de ces groupes d'aiguilles est associée une ouverture de passage commune (7) de la pl...

In summary, the invention is related to the discovery of a class of compounds which comprises boric acid or maleic acid or a mixture of boric acid with at least one acid having a weak nucleophilic anion, which inhibits the reaction of a polyepoxide with a curing agent at low temperatures. In another embodiment the invention is a latent catalyst system adapted for curing a polyepoxide resulting fro...

In summary, the invention is related to the discovery of a class of compounds which comprises boric acid or maleic acid or a mixture of boric acid with at least one acid having a weak nucleophilic anion, which inhibits the reaction of a polyepoxide with a curing agent at low temperatures. In another embodiment the invention is a latent catalyst system adapted for curing a polyepoxide resulting fro...

A composite material wherein a mixture of a phenolic or furan resin and an inorganic filler as matrix materials is incorporated in an inorganic fiber or heatresistant organic fiber in the form of a long fiber bundle. The composite material has excellent characteristics such as heat resistance, strength and alkali resistance. The present invention can provide substitute...

A process for preparing lubricating grease comprising a mixture containing from 15% to 40% by weight of polytetrafluoroethylene, from 60% to 85% by weight of a liquid dispersing medium which is a particularly defined perfluoropolyether or oligomer of trifluorochloroethylene, and 0.1% to 0.4% by weight of a perfluoroalkyl or polyoxyperfluoroalkyl surfactant and, optionally, a stabilizing and antico...

Le granulat, tel que vermiculite, est traité par pulvérisation de la surface des particules à l'aide d'un mélange de trois adjuvants, à savoir un agent tensio-actif, un accélérateur de prise et un agent fluidifiant des ciments, en mélange dans de l'eau et le malaxeur pour la préparation du granulat comporte un arbre central rotatif 7 traversant une trémie fixe d'alimentation en particules 1, po...

PURPOSE:To simply and surely assemble a seat cushion and a seat back by arranging cams and coupling grooves coupled with each other on brackets of the seat cushion and the seat back. CONSTITUTION:A seat cushion 2 and a seat back 3 are held on the seat of a vehicle via brackets 4, 5. Levers 8 are pivotally supported rotatably by pins 9 and cams 10 connected to the levers 8 are slidably supported, o...