There is now provided a tool for chipforming machining of metals and similar materials comprising a high speed steel core and a cover of more wear resistant material than the core. If the material in the core has a carbon content 0.05-0.25% lower than the conventional carbon content for the high speed steel in question, improved properties can be obtained.

Manufacturing fabric which becomes tacky on heating (1 in fig.), in which a textile base (2) is coated with a point arrangement of tacky polymer particles (3), comprises: (i) using a silk-screen printing frame (4) to place, on a transfer support with a smooth regular surface, an underlayer (5) of polymers, in paste form or in suspension in a solvent, whose melting point is greater than the tempera...

Manufacturing fabric which becomes tacky on heating (1 in fig.), in which a textile base (2) is coated with a point arrangement of tacky polymer particles (3), comprises: (i) using a silk-screen printing frame (4) to place, on a transfer support with a smooth regular surface, an underlayer (5) of polymers, in paste form or in suspension in a solvent, whose melting point is greater than the tempera...

The invention relates to a computer system for data management including at least the management of data relating to the trading of warrants (citi CATS-OS), comprising a data processing system (1), an input unit (2), a display unit (3) and a data input (5), wherein the display unit (3) displays a first mask having a format allowing the input of a request for specific data by the input unit (2), th...

Disclosed is a process for preparing a rigid, hydrocarbon-blown, polyurethane foam by reacting a polyisocyanate with a polyurethane precursor composition comprising a polyol and a compatibilizing agent containing a compatibilizing radical of the formula: -(CnH2n+1) wherein n is a number greater than or equal to 5, and wherein the compatibilizing agent contains at least one active hydrogen atom, pr...

In a vulcanization mould (2) for vehicle tyres the rubber blend deposits are cleaned off by the action of one or more laser beams (9) supplied in the form of short-duration and high-energy pulses, which beams cause separation of the rubber blend by effect of the shock wave generated by them and hitting the operating surfaces of the mould (2). Each laser beam (9) is guided by a scanning unit (21a, ...

The present invention relates to aqueous polyurethane-urea dispersions which are film forming at temperatures of ~ 20.degree.C in the absence of film forming additives, dry at room temperature to yield films having a hardness according to DIN 53 157 (K nig pendulum hardness) of ~ 100 seconds, in which the polyurethane-ureas have a urethane group content (calculated as -NH-CO-O-, molecular weight 5...

The present invention relates to aqueous polyurethane dispersions having a resinsolids content of 20 to 60 wt %, a viscosity at 23 .degree.C of 10 to 20,000 mPa~s and a pH of 5.5 to 8.5, wherein the polyurethane has a weight average molecular weightof 5,000 to 500,000 and a urethane group content (calculated as -NHCO-O-, molecular weight = 59) of 2.5 to 15 wt %, and is based on a polyisocyanate co...

A method of stabilising olefin polymers which have been polymerised on supported catalysts and have a mean particle diameter of 1-5 mm is characterised in that these polyolefins are treated with a stabiliser mixture prepared by heating a mixture containing a) at least one support material and/or b) at least one stabiliser which melts at 20-120 DEG C and c) at least one stabiliser which melts at...

A position detection device for detecting the position of adjustable stabilizer blades (3) in a bottomhole assembly of a drill string (2) within a borehole comprises a variable reluctance magnetic circuit incorporating an inner magnet member (7) and an outer magnetisable member (4) which are movable relative to one another along a predetermined direction (5) between two states in which the relucta...

Limestone filled Portland cement wherein the fineness of limestone particles ranges from 5,000 to 12,000 Blaine and the fineness of clinker particles ranges from 1,500 to 3,000 Blaine.

PCT No. PCT/SE94/00389 Sec. 371 Date Oct. 30, 1995 Sec. 102(e) Date Oct. 30, 1995 PCT Filed Apr. 29, 1994 PCT Pub. No. WO94/25411 PCT Pub. Date Nov. 10, 1994A method for producing cement useful for preparing pastes, mortars, concretes and other cement-based materials, having a high workability with reduced water content, high strength and density, and a rapid development of strength, which method ...

The invention relates to web-form foam boards made from polyolefins produced from polyolefin moulding compositions containing blowing agents by extrusion, foaming and expansion of these compositions and during whose production halogen-free hydrocarbons and/or CO2 are used as blowing agents. Directly after their production, without additional ageing, the foam boards according to the invention have ...

An inorganic binder system for foundry compositions including a silicate and added phosphate. The composition produces a binder having the advantageous strength properties of a silicate binder system with the dispersibility properties of a phosphate binder system. Methods of making and using the binder systems and the resulting products are of particular interest to the foundry art.

An inorganic binder system for foundry compositions including a silicate and added phosphate. The composition produces a binder having the advantageous strength properties of a silicate binder system with the dispersibility properties of a phosphate binder system. Methods of making and using the binder systems and the resulting products are of particular interest to the foundry art.

A compound of formula: wherein one of R1 and R2 represents a group of formula: W(CF2)m- where W represents an atom of hydrogen, fluorine or chlorine and m has the value one or two, and the other of R1 and R2 represents an atom of fluorine, chlorine or bromine or a group of formula: where each of X, Y and Z independently represents an atom of hydrogen, fluorine or chlorine, a...

Insecticides of the formula wherein R1 and R2 are each selected from methyl, halomethyl, and halo; X is oxygen, sulphur, sulphonyl or a group NR4 where R4 represents hydrogen, lower alkyl or lower carboxylic acyl; R3 is lower alkyl, lower alkenyl or benzyl; m has the value zero or one, and n has a value from one to four.

The pressure-resistant and bending-resistant insulating panel (1) preferably made of rock wool is combined into a unit by stretch foil wrapping sheets (4) on two spaced apart elongated support elements (2,3) pref. made of rock wool. The material comprising the insulating panel and support elements possesses a pressure resistance of at least 50 kPa and a density of at least 130 kg/m<3>. The fibres ...

The present invention relates to sealing materials free from asbestos or other inorganic fibrous substances in the form of papers, paperboards, cardboards or plates. The gasket compositions preferably comprise a mixture of non-fibrillated organic fibers having an elongation at break of < 5% (up to 200 DEG C.) and fibrillated P polyaramide fibers as well as, powdered graphite and an elastomeric re...

The invention relates to a product and to a method for making an impervious barrier mass suspension, especially for the erection of slotted impervious barriers by the single-phase process, based on bentonite, ground blast-furnace slag and activators for the blast-furnace slag, the activator for the blast-furnace slag being kept separate from the dry mix, which essentially consists of bentonite and...