The present invention relates to a method and to an apparatus for providing a wood surface (2) which as good anchorage for paint and/or glue and/or for arresting the formation of cracks. The wood is irradiated with pulsed light from a light source (3) of such strength and in such pulse numbers as to break covalent bonds in the material along the wood surface, at least so as to remove the damaged c...

A rotating disc filter has a plurality of discs, each made of a plurality of sectors removably mounted on support structures which are fixed on a rotating hollow shaft into core drainage channels of which, the sectors drain. The drainage and support structure has flow channels designed to rapidly drain filtrate and to permit filtrate split between clear and fiber bearing fractions. Rapid drainage ...

A rotating disc filter has a plurality of discs, each made of a plurality of sectors removably mounted on support structures which are fixed on a rotating hollow shaft into core drainage channels of which, the sectors drain. The drainage and support structure has flow channels designed to rapidly drain filtrate and to permit filtrate split between clear and fiber bearing fractions. Rapid drainage ...

A method of making a polyethylene terephthalate/polyolefin blend for sheeting and thermoformed articles which has improved color stability and can be recycled many times. A heat stabilizer is melt blended only with the polyolefin prior to its incorporation into the polyethylene terephthalate. The PET and polyolefin are then blended and extruded into sheeting and subsequently thermoformed into arti...

A biaxially oriented base film made from polyethylene 2,6-naphthalenedicarboxylate and a floppy disk for high-density magnetic recording made from the film. The film and the disk are characterized in that the vibration of the film surface is suppressed so as to enable the contact with a magnetic head under given conditions even at a high rotational speed and that they have an excellent viscoelasti...

Cast film on the basis of low-density polyethylene is prepared by extruding the molten polymer at temperatures of the melt at the die gap of below 200 DEG C. Films that have been prepared this way have special mono-axial orientation as a result of which the mechanical properties are improved.

A thermoformable polyaryletherketone sheet of a thickness of about 625-5000 micrometers, having repeating units derived from diphenyl ether and terephthalyl and isophthalyl groups, especially a polyetherketoneketone in which the terephthalyl to isophthalyl isomer ratio is about 70:30 to 0:100, especially 60:40 to 50:50, which thermoformable sheet has a crystallinity of 5% of less, can be fabricate...

This invention relates to flame retardant phenol aldehyde foams which have a k value below 0.020 W/mk. The foams have as flame retardants a blend of a halosubstituted diphenyl oxide and an organic phosphorus compound. The feature of the invention is that unlike conventional flame retardants, the blend now used does not adversely affect the low k value i.e. the low thermal conductivity of the foam.

PCT No. PCT/EP90/02148 Sec. 371 Date Jul. 28, 1992 Sec. 102(e) Date Jul. 28, 1992 PCT Filed Dec. 11, 1990 PCT Pub. No. WO91/09685 PCT Pub. Date Jul. 11, 1991.A process utilizing a pigmented aqueous basecoat composition which contains as the film-forming material a water-thinnable emulsion polymer. The water-thinnable emulsion polymer is prepared in a two-stage emulsion polymerization. In the first...

New divalent metal salts of 2-[N,N-di(carboxymethyl)amino]-3-cyano-4-carboxymethylthiophene-5-carb oxylic acid, which can be used therapeutically especially in the treatment of bone diseases, cutaneous and vascular ageing, hepatic diseases and dental diseases.

A pallet 10 is made of corrugated board and has longitudinal and transverse ribs 12.2, 14.2 which have interlocking slot and bridge formations 20, 22 to interlock the ribs together. The inner ribs 12.2, 14.2 are located on the outer ribs 12.1, 14.1 by step and slot formations 24, 26; 30, 32; and the outer ribs 12.1, 14.1 locate on each other by step formations 36, 38.

There is disclosed an activated sludge wastewater treatment process which comprises aerating a mixed liquor comprising phosphate-containing influent wastewater and activated sludge in an aeration or high-purity oxygen zone to reduce the BOD/COD content of the wastewater and to cause the microorganisms present to take up phosphate. A phosphate-enriched sludge in which the phosphorus is present prim...

A process for modifying the slump of a concrete or mortar by the addition at different times of a water-soluble poly(alkylene oxide) and a beta -naphthalene sulphonate-formaldehyde condensate, a plasticizer or superplasticizer which is selected from lignosulphonates, melamine sulphonate formaldehyde condensates, carboxylates and selected styrene-maleic anhydride copolymers. The poly(alkylene oxid...

A device for regulating the power transferred from an alternating-current voltage supply (Vac) to an electrical load (L) is described and uses, as a static switch, a first switching means of the type with controllable conduction and cutting-off, for example, a power MOSFET (T1), and a second switching means of the type with triggered controllable conduction, for example, a triac (T2). A control ci...

A wet razor having a handle, on the front end of which is disposed a razor head that carries a razor blade, is provided. In the region between the razor head and a grasping portion of the handle, there is provided a turning mechanism via which the razor head, with its razor blade, is freely rotatable relative to the grasping portion of the handle about an axis of rotation that is perpendicular to ...

A sizing device includes a handle (16), a neck (18) joined at its proximal end to the handle (16), and a sizing head (12) connected to a distal end of the neck (18). The sizing head (12) has a continuously uninterrupted surface so as to be easily inserted into an opening in a hollow body organ to measure the diameter of the opening. The head (12) can be comprised of a plurality of cylindrical sizi...

The invention refers to floor tiles and a method for their production. The tiles are produced on the basis of a mix of hydraulic binder, polymer, filler, sand, colour pigments, additives and water. The binder content is 15-40 % by weight and the polymer content is 3-10 % by weight, calculated as percentages of the dry constituents. The tiles are produced from a castable mix which is made to harden...

A dose metering device for use with a syringe comprises a fixed screwthreaded member (17) which is either integral with or fixed in use to the cylinder (10) of the syringe and is in threaded engagement with a screwthreaded plunger (13) which can be rotated by a manually-rotatable cap (30) acting through a ratchet and pawl mechanism (32, 34) whose ratchet wheel (26) drives a driving rod (24) which ...

The following description concerns new glucosidic derivatives of N-acyl alkylamines and their use in the treatment of acute and chronic disorders of the central nervous system connected with overstimulation of excitatory amino acids receptors.