This invention relates to chopped strand mats and thermoplastic sheets for the manufacture of molded articles which are excellent in strength, rigidity and impact resistance as well as in color quality. The chopped strand mats according to the invention comprise chopped strands having fiber lengths of 10 to 100 mm and doped with a surface treating composition comprising an expoxysilane coupling ...

A process for recycling and reblending dry, difficult to hydrate polymer fines into a water-swellable fluid absorbent polymer gel is disclosed. The process requires feeding the dry polymer fines into a first mixing zone where they are subjected to spraying with water that at least partially hydrates the fines and mixing, substantially simultaneously with the water contact, at high shear such at th...

A porous material of polytetrafluoroethylene consisting essentially of fibers of polytetrafluoroethylene. The porous material of PTFE is produced by heat-treating a molded article prepared by paste extruding of PTFE fine powder under such a condition that the heat-treated molded article shows at least one endothermic peak which appears between an endothermic peak position of the fine powder and an...

A gear shaft assembly (42) is provided including a shaft (5) having a first set of gear teeth (6) formed integrally in a second portion (51) thereof and extensions of said teeth extend axially over an adjacent reduced diameter second portion (50) for receivably mounting a second gear (7) for rotation with the shaft.

A monocrystal ingot conveying/surface grinding apparatus has a plurality of surface grinding devices (221A to 225A) disposed serially, a rail (16A) disposed adjacent to the ceiling along the devices, a conveying/attitude-adjusting device (20A) guided by the rail (16A) and having an X-Y- theta - phi stage (24) and conveyers (14) and (23) disposed below an end portion of the rail (16A) and arranged...

PCT No. PCT/FR91/00034 Sec. 371 Date Jul. 9, 1992 Sec. 102(e) Date Jul. 9, 1992 PCT Filed Jan. 22, 1991 PCT Pub. No. WO91/11481 PCT Pub. Date Aug. 8, 1991.A degradable plastic film comprising film forming ethylene copolymers and lignin incorporated in the form of pulverulent powder having a grain diameter of about 1 to 5 microns. The films are homogeneous and possess a thickness of about 15 to 25 ...

Method for making carbon composite components (1), having an edge (2) and a central part (3), comprising at least one layer (4) of carbon/carbon composite and at least one layer (5) of recompressed expanded graphite, characterised in that, with the aim of obtaining an impervious carbon composite component (1) with a central part (3) having a high degree of deformation and/or with an edge (2) permi...

The present invention is directed to a method wherein fibers are treated with a first, second, and third treatment solution. The third treatment solution includes a chlorinated rubber and a rubber-containing composition having acrylonitrile-butadiene rubber or hydrogenated acrylonitrile-butadiene rubber. The treated fibers are positioned contiguous, and adhered, to an unvulcanized hydrogenated acr...

The present invention provides a sheet material comprising a sheet-shaped material made of an inorganic filler other than asbestos, a rubber material and a polycarbodiimide pulp, and a reinforcing material treated with a polycarbodiimide resin. The present invention further provides a process for producing a sheet material, which comprises shaping an inorganic filler other than asbestos, a rubber ...

The foamable silicone rubber composition is capable of giving a cured silicone rubber body having a cellular structure and suitable for use as a very reliable fire-resistant joint-sealing member in buildings. In addition to the rather conventional constituents essential in a foamable silicone rubber composition of prior art including (a) a diorganopolysiloxane, (b) a finely divided reinforcing sil...

A polycrystalline diamond cutting tool is prepared by employing polycrystalline diamond, which is synthesized on a mirror-finished surface of a base material by a low-pressure vapor phase method, as a tool material. A surface, which has been in contact with the base material, of the polycrystalline diamond layer is utilized as a tool rake face. A flank of the tool is formed by laser processing. Th...

Reuseable polyvinyl chloride is recovered from solvent-loaded waste polyvinyl chloride paste by adding one twentieth of the paste weight of an acyl polyethylene glycol ester, then adding about twice the paste weight of water, while stirring, driving off the solvent by steam distillation, separating the solvent from the resulting two-phase distillate, and filtering off and drying the polyvinyl chlo...

Electronically adjustable position-sensitive radiation detector, focus-error detection system comprising such a radiation detector, and optical read and/or write apparatus comprising such a focus-error detection sytem. A position-sensitive radiation detector (1), which on a plane surface comprises at least two adjacent reverse-biased radiation-sensitive diodes. comprises a bias circuit (20) for es...

The invention relates to a process for making foam plastic mouldings from scrap parts (reject mouldings) of open-cell foam plastics. The scrap parts are comminuted into flakes, which are mixed with binder and hardener to form a pourable composition, which is introduced into a mould, compressed and steam-treated.

In a device for reducing the internal combustion engine torque in upward gearshift sequences between the start and the end of a gearshift sequence in an automatic transmission in motor vehicles with a control module, which controls the reduction in the internal combustion engine torque according to a set-point curve of an operating variable influenced by a gear change, the said operating variable ...

The use of compositions obtainable from a mixture containing A) polyethylenes containing recurring units of the formula I in which R is a radical of the formula R and R and R<1> to R<7>, independently of one another, may be identical or different and are selected from the group consisting of hydrogen, halogen, -NO2, -CN, C1- to C50-alkyl, C1- to C50-alkoxy, C3- to ...

Polyethylenes substituted by aminocarbamate, thiocarbonate, xanthogenate, sulphonate, sulphonic ester, selenium oxide or pyridinium radicals or metal alkoxide radicals. Process for the preparation of these polyethylenes, and their use for the production of films or sheets.

A machine for grinding opthalmic glasses including a carriage, a clamping shaft carried by the carriage and composed of two shaft parts for clamping therebetween an opthalmic glass blank, and a clamp cooperative with at least one of the shaft parts for exerting an axial force thereon. The clamp includes a motor-speed reducer unit having a motor, transmission elements for transmitting the driving f...

A sound scanner for a sound-film reproducing device using continuous film transport for films of different formats is proposed, in which a corresponding optical sound pick-up device for the optical sound tracks of the relevant film formats is provided. Each optical sound pick-up device consists of a light receiver (4) and a light source (3) which comprises an exciter lamp (6) and an optical focuss...