Die Erfindung betrifft ein Verfahren zur Herstellung von feuerfeste oder feuerbeständige Mineralfasern enthaltenden Formteilen, wobei die Mineralfasern in eine kohlenstoffhaltige Matrix eingebettet werden, sowie nach diesem Verfahren hergestellte, Mineralfasern enthaltende, kohlenstoffgebundene Formteile. Gemäß diesem Verfahren wird auf in wässriger Aufschlämmung vorliegende Mineralfasern feinteil...

The present invention relates to a styrene-based resin composition comprising (A) a styrene-based polymer having mainly a syndiotactic configuration and (B) a phosphorus-containing antioxidant and a phenolic antioxidant wherein the total amount of the phosphorus-containing antioxidant and the phenolic antioxidant compounded is 0.005 to 5 parts by weight per 100 parts by weight of the styrene-based...

Siliconharzpulver werden durch Sprühtrocknung wäßriger kolloidaler Suspensionen von Organopolysiloxanen gewonnen, die durch Zugabe von Alkoxysilan und/oder dessen Teilhydrolysat und gegebenenfalls im Gemisch mit von Alkoxygruppen freiem Organo(poly)siloxan mit höchstens 8 Siloxaneinheiten je Molekül zu Wasser in Gegenwart von Emulgator mit einer Geschwindigkeit von höchstens 5 Mol Organosiliciumve...

An ultrastretchable polymer material is prepared starting from polyolefine particles with a low entanglement density and a weight average molecular weight (MW) higher than 400,000, the particles being densified to a coherent material together with a process auxiliary material at an elevated temperature, but below the melting point of the pure polyolefine. From this ultrastretchable material, objec...

A method for molding a cementitious composition into an article having a desired shape or configuration which comprises preparing molding means in a predetermined shape or configuration corresponding to the desired shape or configuration of the article; substantially filling the molding means with water to provide a substantial excess of that needed for hydration of the cementitious composition wh...

1. Disc brake comprising a rotating disc (10), a caliper (12) straddling the disc and carrying at least one brake motor (14a, 14b), and two friction blocks (22a, 22b) mounted in the caliper on either side of the disc, so as to be brought into frictional contact with the disc during an actuation with the brake motor, the caliper (12) having bearing surfaces (20a, 20b), onto which end edges (22'a, 2...

A cooler for gases generated from coal by gasification under pressure has a pressurized vessel (1) that accommodates an insert (5) with a polygonal cross-section made out of pipes (6) that are welded together gas-tight in conjunction with webs (7). The pipes in the insert are bent vertically in to create a roof (11) and parallel one another sector by sector with webs of uniform width. The pipes th...

Disclosed is a molecularly oriented molded body of an ultra-high-molecular-weight ethylene/ alpha -olefin copolymer having an intrinsic viscosity ( eta ) of at least 5 d l /g and such a content of an alpha -olefin having at least 3 carbon atoms that the number of molecules of the alpha -olefin is 0.1 to 15 on the average per 1000 carbon atoms, wherein the molded body shows at least two crystal f...

In the present invention, a thick resist layer is formed on a thin metal film and the resist layer is dry-etched by using a SiO2 mask formed selectively on the resist layer, and the thick wiring metal layer is formed by plating method with using the dry-etched resist layer having perpendicular side wall as a mask, thereby to form a low resistance and fine pattern wiring metal layer.

A polymerizable composition particularly for dental use, comprises at least one methacrylate monomer having 2 to 4 polymerizable double bonds, from 0 to 400% based on the monomer of inorganic particulate filler, from 0 to 5% based on the monomer or silane coupling agent, an effective catalyst-activating amount of accelerator comprising copper ion and from 0.5 to 5.0% based on the monomer of (a) an...

A deactivatable tag is useable with an electronic article surveillance system and comprises planar conductive material cut into a pair of inverse, first and second spiral conductors 25, 30 positioned for capacitive and inductive coupling, about a dielectric layer 28T to form a resonant circuit. Connector portions 27, 32 of the conductors are welded e.g. by a laser beam to weld portions which are f...

An apparatus and process for liquefying natural gas using two closed-cycle, multicomponent refrigerants; a low level refrigerant which cools the natural gas and a high level refrigerant which cools the low level refrigerant wherein the improvement comprises phase separating the high level refrigerant after compression and fully liquefying the vapor phase stream against external cooling fluid after...

An electro-rheological fluid comprising a hydrophilic solid and a hydrophobic liquid component wherein the hydrophobic liquid component comprises a fluorosilicone whose average molecular weight is in the range 200 - 700.

Horizontal-Ablenktransformatoren für Fernsehgeräte, die in Verbindung mit einer Schaltung zur Spannungsvervielfachung verwendet werden, bestehen vorwiegend aus zwei koaxial ineinandergesteckten Spulenkörpern mit getrennter Primärwicklung und aufgesteckter Hochvoltwicklung. Ein derartiger Aufbau ist aufwendig und bei einer Arbeitsfrequenz von über 20 kHz, z.B. 32 kHz, verringert sich die zu nutzend...

According to this process a stereospecific reduction of the two hydroxyl groups of an etherdiol is carried out using a mixture (titanium trichloride, lithium aluminium hydride) at a temperature of approximately between 5 DEG C and 40 DEG C and the ether obtained is optionally converted into vitamin A, retinal or retinoic acid. Application to the synthesis of all-trans compound taken from the group...

Cabin for carrying out ultraviolet radiation for a therapeutic purpose or for tanning. Its vertical walls (2 to 5) each consist of the tubes (12) connected, for example, to a ventilated frame (6) which is equipped with means (10, 11) for fixing and connecting the emission tubes (12), this cabin being connected to an electric block comprising, for example, the ballasts of these tubes (12) and place...

A loading pallet having low dead weight, high loading capacity and low manufacturing costs, consisting of a loading surface (1) of honeycomb material (3) surrounded by an edge strip (2) provided with transverse strips (4-6) and having sheets (8) of cardboard, for instance, glued onto its upper and lower sides. The pallet (1) is provided with feet (9) which are screwed into the pallet surface.