Armature textile utilisable pour la réalisation de complexes stratifiés, constituée de nappes superposées de fils longitudinaux (2) et de fils transversaux (la, 1b), qui sont des fils de verre. La liaison des différentes nappes entre elles est obtenue au moyen de fils longitudinaux additionnels (3) qui traversent l'empilement et contournent les couches externes, lesdits fils de liage étant à base ...

An amino-formaldehyde moulding composition is made by compounding together an aqueous amino-formaldehyde resin solution to provide 0 to 90 percent by weight of the resin component of the composition, filler to make up 20 to 60 percent by weight of the moulding composition and UF resin which had a low degree of condensation, is solid at room temperature, contains a modifier and makes up 4 to 80 per...

An amino-formaldehyde moulding composition is made by compounding together an aqueous amino-formaldehyde resin solution to provide 0 to 90 percent by weight of the resin component of the composition, filler to make up 20 to 60 percent by weight of the moulding composition and UF resin which had a low degree of condensation, is solid at room temperature, contains a modifier and makes up 4 to 80 per...

alpha , beta -Ethylenically unsaturated polyesters obtained from dicarboxylic acids and monohydric and dihydric alcohols having acid numbers of 1-50 and hydroxyl numbers of 10-80, 1,5-2,5 mols of dicarboxylic acids and 1,5-2,5 mols of monohydric alcohols having been employed, per mol of diols, in their preparation, are an excellent basis for dispersions containing powdery insoluble substances.

A molded mass containing granules of expanded thermoplastic resin mixed with a mineral binder is manufactured by preparing a molding mass in a single operation by mixing expanded thermoplastic resin granules with water, water soluble resin and a mineral binder and then pouring the resultant mixture into a mold until the mixture solidifies into the desired molded mass.

Aluminium foil is cut into tracks without penetrating the plastic insulating backing in such a fashion that the tracks do not touch. The device is then folded so that parts of the track form capacitor electrodes. - The tracks form a spiral, and are cut with a tool to only a slightly greater depth than the aluminium foil thickness. In one embodiment the tracks are mutually isolated by the tool angl...

A process is described for increasing the space time yield of polymer production in a fluidized bed reactor employing an exothermic polymerization reaction by cooling the recycle stream to below its dew point and returning the resultant two-phase fluid stream to the reactor to maintain the fluidized bed at a desired temperature above the dew point of the recycle stream.

Substituted cyclopropylmethoxy anilides having the formula in which R1 is alkyl, lower alkenyl, chloro-lower alkyl, lower cycloalkyl, lower alkoxy, thio-lower alkyl, or R2 is hydrogen, lower alkoxyalkyl or lower alkanoyl; R3 and R4 are independently hydrogen, lower alkyl or lower alkoxy; X and Y are independently chloro, fluoro or bromo; Z is hydrogen, methyl, dimethyl, or one me...

Salt water and other solutions are accelerated in a rotating structure and applied to a cannister containing reverse osmosis membrane material. The desalinated water is removed after passing through the large surface area concentration of membrane material in the cannister. The enriched brine is removed from the cannister at a point furthest from the axis of the rotating structure and returned to ...

In the process, the waste water is cleaned by, before an aerobic biological treatment, carrying out a physico-chemical pretreatment, the impurities being floated using finely disperse gas bubbles and then skimmed off. The excess sludge from the aerobic biological treatment is fed back into the physico-chemical treatment stage. The resulting floated layer to be discharged from this physico-chemical...

A process for automatically going into the mode for increased suction extraction of the gases emitted by the tanks of series for the production of aluminium by igneous electrolysis using the Hall-Heroult process, each tank being closed around its periphery by a plurality of removable covers which are disposed in substantially sealed relationship with each other and between each thereof and their s...

A memory in which each word location for a user word not only contains the bit locations for the actual data but also one parity bit for the parity over the entire word location and one correction bit. A fixed number of word locations are grouped to form a memory location for the storage of a memory word. When a word location is read by a data user, the parity bit indicates whether the word locati...

A stable, low viscosity, bleaching, built liquid detergent composition contains 22 to 32% by weight of sodium triphosphate; 6 to 15% by weight of an active detergent mixture of anionic sulphonate or sulphate, soap and nonionic detergent in a weight ratio of (4.5-8.5):(0-3):(1.5-4); 2-10% by weight of an alkali metal sulphite and 0.2 to 2.0% by weight of a non-detergent short-chain alkyl-substitute...

1-N-[ omega -amino- alpha -hydroxyalkanoyl] kanamycins A and B of the formula I in which R represents OH or NH2, are prepared by acylation of polysilylated kanamycin A or B, or polysilylated kanamycin A or B which has a protective group other than silyl on the 6'-amino group, with an acylating derivative of an acid of the formula II in which n is an integer from 0 to 2 and B is an ...

A novel anthracycline antibiotic designated rudolphomycin is produced by fermentation of Actinosporangium sp. ATCC 31127 and isolation of the new antibiotic free of substances co-produced therewith. Rudolphomycin and its pharmaceutically acceptable salts exhibit antimicrobial activity and inhibit the growth of mammalian tumors.

Diacetone-2-ketogulonic acid is prepared by electrochemical oxidation of diacetone-sorbose in an aqueous alkaline medium in the presence of 0.001 to 1% of surfactant.

A weather-resistant covering is made of three superimposed sheets of vulcanizable material such as ethylene-propylene copolymers, e.g. ethylene-propylene-diene terpolymer. The inner layer contains a vulcanization accelerator and advantageously the outer layers do not. An additional inner layer such as a non-woven textile fabric can be provided to increase strength and dimensional stability. A roof...

An absorbent product is provided which is disposable, light weight, stable and potentially thin. It is comprised of a superstructure of resilient fibers in combination with superabsorbent, which combination is provided with apertures. The apertures and at least one side of the superstructure are covered with hydrophilic material.

A disposable absorbent product is provided in the form of a layered structure. A first fibrous layer of resilient fibers contains superabsorbent and is superposed on a layer of hydrophilic material. The layers are unpressed and slit followed by extrusion to open the slits to provide apertures. The structure is used as the absorbent core in diapers, sanitary napkins, wound dressings and the like.