Flame resistant polyurethane foams are prepared by impregnating an open-cell polyurethane foam with a mixture of a carboxyl-containing polychloroprene latex, a zinc salt of a polymetaboric acid and optionally aluminium hydroxide.

A propylene-ethylene random copolymer having a following characteristics: (a) a melting point of 115 DEG C to 140 DEG C; (b) an ethylene content, determined by the C<1><3>-NMR method, of 6 to 20 mol%; (c) a block index, calculated according to the C<1><3>-NMR method, of 1.1 or less; (d) an MFI, determined at 230 DEG C under a load of 2.16 kg, of 0.5 to 100 g/10 min; and (e) a ratio of the MLM...

The device includes cathode assembly with a plate having slots lined with a metallic lining and forming a number of cathode cells each forming a segment of the display. A display panel overlies one face of the cathode plate and supports on its surface a number of patches of fluorescent material aligned with the slots so as to be selectively impinged by u.v. radiation emitted from the slots upon e...

A method for easily, inexpensively and efficiently producing an improved water-absorbent resin having a high water absorbency and a high water absorption rate and capable of forming a gel having a high gel strength and nonstickiness, in which water-absorbent resin particles which contain water and a crosslinking agent and are in the semi-swollen state are agitated at an elevated temperature in the...

A sealing element for a cylinder-and-piston unit, especially a dust boot of a disc-brake actuating unit, includes an annular deformable portion of an elastically deformable material, and an annular connecting portion of a resilient material which is permanently sealingly connected to the inner region of the deformable portion and mounts the same on a protruding annular portion of the piston which ...

The subject of the present invention is a knife for cutting animals 7 in butchery, characterised in that it is composed of a blade 1 including a guide finger 2, which is adapted to be inserted into the medullary cavity 3 of the vertebral column 4 of the animal, and extends out from the part of 1a of the blade comprising the cutting edge, and in the plane of the blade, which is connected to a handl...

An article 1, for use with a detection system 31, has embedded within it a marker 2, particularly a magnetic tag, which can be detected by the detection system 31. The detection system 31 includes a transmitter having a frequency generator 33, an amplifier 34 and a transmitting coil 35 to generate a magnetic field within an interrogation zone and a receiver having a receiving coil 36, a receiver 3...

Process for manufacturing walls from earth and sand mortars includes making a mortar mixture containing a dry aggregate mass of between 15 and 50% by mass of earth and between 85% to 50% by mass of sand, bonding materials in a mass of at most 10% of the dry aggregate mass, and water in a mass of at most 22% of the total dry mass of earth, sand and bonding materials, stirring the mixture continuous...

A dental cement composition consisting of a composition A and a composition B, said composition A comprising at least two powders, (a) 100 parts by weight of a powder containing more than 20% by weight to 70% by weight of calcium oxide and 30% by weight to less than 80% by weight of aluminium oxide and treated on the surface with 0.01 to 5% by weight of at least one selected from the group consist...

Polyene aldehydes are made by reaction of a carbonyl compound of formula: (I) in which R denotes a hydrocarbon radical and R' denotes hydrogen or alkyl, with a metal derivative of a halogen compound of formula: (II) in which X denotes halogen (preferably bromine), R3 is alkyl, and either R1 denotes hydrogen and R2 denotes an alkoxy radical identical with OR3 or R1 and R2 t...

The finely divided dispersions can be obtained by emulsion polymerisation from suitable monomers and contain biocidal, cationic- surfactant quaternary organic ammonium compounds, preferably tetrasubstituted ammonium compounds of the formula (I) and/or alkyl- or alkenylpyridinium compounds of the formula (II), in particular in an amount of from 0.1 to 20 % by weight, based on the dispersion polymer...

Method of treatment of waste water, using activated sludge, comprising a process of oxidation of the carbonaceous contaminants and a nitrification process, optionally in combination with a denitrification and/or dephosphatation process. This process comprises a reaction stage during which decontamination reactions take place, a sludge concentration stage, a generation stage during which the s...

Use of finely divided aqueous cationic dispersions of synthetic resins obtainable by emulsion polymerization from suitable monomers and which contain cationic dispersion polymers, as impregnants and primers for consolidating and priming of porous absorbent substrates, preferably inorganic substrates such as, for example, masonry, concrete, plaster surfaces, gypsum surfaces, bricks or wood, by trea...

A dosage unit for dosing a number of measured quantities of a liquid, such as insulin, from a cartridge (2). This dosage unit enables an easy and precise adjustment of the desired quantity and ensures that the dosage unit cannot be used again inadvertently, when the cartridge is empty.