The present invention relates to anticonvulsant compounds useful in the treatment of epilepsy and other central nervous system disorders. The compounds of this invention have the following general formula: wherein R and R1, independently, are lower alkyl, aryl lower alkyl or phenyl, unsubstituted or substituted with at least one substituent; R2 and R3, independently, are hydrogen, lower al...

PURPOSE:When the yarn is in the yarn connector and bends out of the normal running course, it is cut and held so as to collect the sample yarn as long as possible from a winding unit. CONSTITUTION:The yarn end in the winding package 17 is held by sucking with a mouth 70 and the yarn is guided to the connector T while the other yarn on the feed bobbin side 18 is held by sucking with the connection ...

Textile reinforcement for use in making layered complexes, the reinforcement consisting of lengthwise yarns 2 and crosswise yarns 1a, 1b. The different sheets are joined by means of additional lengthwise yarns 3 which run through the accumulated layers and around the outer layers, the said joining yarns being based on a heat-meltable substance.

A method for producing cross-linked polyethylene resin foams which comprises mixing a polyolefin resin, a blowing agent and, optionally, a surface active agent containing hydroxyl groups or an acid amide compound under pressure, said polyolefin resin containing a cross-linkable ethylene polymer having on the side chains thereof silyl groups which effect cross-linking upon contact with water; extru...

Epoxy resin-based polymerisable composition, its use for the treatment of polyamide fibre cables and a driving belt produced from the cable thus treated. This composition comprises: - from 14.5 to 29.5 % by weight of epoxy resin; - from 40 to 70 % by weight of a plasticising resin compatible with the epoxy resin, such as a copolymer of butadiene and acrylonitrile; - from 14.5 to 29.5 % by weig...

A boring-injection device comprises a fluid supplying hollow rod, a fluid discharge portion at the lower end of the rod, and a packer element inflatable from the rod to seal a space between the rod and a borehole wall at a desired depth position. The rod is surrounded by a sheath so that the packer element and fluid discharge portion can be protruded out of and retracted within the sheath in a bod...

1. Phenolic resin compositions suitable for the manufacture of phenolic prepreg mats, according to which the compositions employed for impregnating the fibre mats consist of phenolformaldehyde resins of the resole type, fillers, pigments and hardening agents, characterized in that these compositions contain an additive consisting of at least 20% by weight of an alkali or alkaline-earth metal metab...

The synchroniser consists of a device (30) for influencing the torque output of the engine, a gearbox control (6) and a unit to determine the synchronisation point of the gear change mechanism. During gear change, the speed of the engine (1) is changed to correspond with the speed of the newly selected gear. Thus, when the synchronisation point is reached, the ignition timing adjuster (30) alters ...

PROCEDE DE MODIFICATION DES PROPRIETES D'UN MATERIAU POLYMERE CHOISI PARMI LES POLYIMIDES, LES POLYAMIDE-IMIDES ET LES POLYMERES DE L'UN OU L'AUTRE DE CES DEUX TYPES RENFERMANT DES MOTIFS SILOXANES DANS LEURS CHAINES.

ON SOUMET LE MATERIAU POLYMERE OU UN ACIDE POLYAMIQUE PRECURSEUR DE CE MATERIAU A UN CHAUFFAGE A UNE TEMPERATURE AU MOINS EGALE A 150C ET INFERIEURE A LA TEMPERATURE DE DECO...

Elastomer films are applied to steel or concrete, partic. for covering appts., containers and pipes, by coating the pretreated substrate with an adhesive, allowing it to stand and then applying the film and pressure. The adhesive is a dispersion free from solvents and contg. additives e.g. an aq. dispersion of natural latex and carboxylated butadiene-styrene mixed copolymer. The process eliminate...

Process for the gasification of fossil fuels and the reforming of a gaseous fuel in order to manufacture a gas containing chiefly H2 + CO whose content of H2O + CO2 is lower than 10% and whose hydrogen content can be raised above that which corresponds to the composition of the fuel. An oxidising agent and a fuel are injected into a reaction chamber 2 while external energy is supplied by at least ...

In order to treat a flat substrate by using the corona effect, especially with a view to depositing a thin polymer film on the substrate, a corona discharge is created between a flat or cylindrical counter-electrode 14 carrying the substrate 10 and a cutter-blade electrode. The reactive agent is brought into the corona discharge via a slot-shaped conduit 20 emerging, opposite the substrate, in the...

PURPOSE:To obtain a transformer having excellent insulation and high reliability by improving the shell type structure using EE type or EI type core and the insulating structure of the transformer, thereby reducing the irregularity in the leakage magnetic flux and the high voltage characteristic. CONSTITUTION:A primary coil and an auxiliary coil for producing a relatively low pulse voltage are wou...

The loader comprises a beam 3 articulated on a shaft 1 and capable of being lifted by a lifting jack 8. A bucket 7 is articulated at the end of the beam 3 and is connected by a connecting rod 12 to a lever 11 controlled by a bucket jack 13. The chambers of the bucket jack 13 are connected to the chambers of a compensation jack 9 so that, when the beam is lifted by the jack 8, hydraulic fluid is tr...

Intraframe coding and decoding equipment are used in a communication network for digital video signals. Video signal sources which have various frequency deviations are transmitted by the communication network. Each of the intraframe coding and decoding equipment items has a locked sampling coding algorithm which is suitable for an input video signal with high frequency precision and a nonlocked s...

Process for purifying waste water, in particular municipal waste water, the waste water to be purified being first introduced into a high-load activation stage operated as an adsorption stage, then introduced via an intermediate clarification stage with sludge withdrawal and subsequently thereto into a low-load stage, to which is connected a secondary clarification stage with sludge withdrawal. Mi...