RD-19567 The bond strength between a diamond and the substrate onto which it is deposited by the chemical vaporization method is decreased to the point where the diamond can be removed from the substrate as a free standing monolithic sheet. The bond strength can be decreased by polishing the substrate, removing corners from the substrate, slow cooling of the substrate after deposition, an intermed...

A polarization diffraction element comprising two diffraction gratings formed on both faces of a substrate respectively. Both the diffraction gratings have grating lines which are arranged at the same grating pitch, and whose directions mutually form a predetermined minute angle. The grating lines may also be arranged parallel to each other. In this case, the relationship between grating pitches D...

A financial services system comprising: certificate-issuing means operative, in exchange for an amount of dollar-equivalent value received from each one of a plurality of individual entities, to issue to each such one individual entity a financial certificate; each such financial certificate having a unique identification code; and investment means operative: (i) to receive from the certifacte-iss...

Material comprising a porous matrix consisting of at least one oxide of a metallic element containing dispersed particles of oxide of at least one second metallic element and characterised in that the particles of the said second metallic element exhibit an increase in their average size of not more than 1000 % between the average size of these particles after a heat treatment at 350 DEG C for 4 h...

O.Z. 4494: 1. Device and process for precipitating polymer from polymer-containing solutions, emulsions or suspensions. 2.1 For precipitating polymers, steam or hot water has hitherto been used, which was injected into the polymer-containing fluid. By means of the device according to the invention and the process according to the invention, the polymer is completely precipitated, effectively f...

La présente invention concerne un matériau à matrice poreuse contenant un second élément sous forme dispersée et son procédé de fabrication. Le matériau comprend une matrice poreuse constituée en au moins un oxyde d'élément métallique contenant de manière dispersée des particules d'oxyde d'au moins un second élément métallique et se caractérise en ce que les particules dudit second élément métalli...

2083487 9119745 PCTABS00008 A chimeric toxin including protein fragments joined together by peptide bonds, the chimeric toxin comprising, in sequential order, beginning at the amino terminal end of the chimeric toxin: (a) the enzymatically active Fragment A of diphtheria toxin; (b) a first fragment including the cleavage domain 11 adjacent Fragment A of diphtheria toxin; (c) a second fragment comp...

The composition and methods of synthesis of several prodrugs are described. These methods may be used to convert negatively charged phosphorous bearing drugs into neutrally charged; lipid soluble prodrugs which are able to passively diffuse into cells and through biological membranes. Prodrugs for a variety of antiviral and anti-leukemic agents are described. A class of prodrugs which undergo degr...

A process for preparing blazed hologram suitable for mass-production which comprises fabricating a glass or metal plate (5) having a surface of serrated cross section, disposing the glass or metal plate in an injection mold (6) to allow the surface of serrated cross section to constitute an inner surface of the mold, injecting an acrylic resin in molten form into the mold under a specific molding ...

The present invention relates to a novel method of manufacturing a composite body (3), such as a ZrB2-ZrC-Zr composite body, by utilizing a carburization technique. Moreover. the invention relates to novel products made according to the process. The novel process modifies the residual parent metal which remains in a composite body (3), by exposing said residual metal to a carburizing environment. ...

PCT No. PCT/FI91/00186 Sec. 371 Date Feb. 3, 1993 Sec. 102(e) Date Feb. 3, 1993 PCT Filed Jun. 12, 1991 PCT Pub. No. WO91/19684 PCT Pub. Date Dec. 26, 1991.Method for regulating a weight related parameter in a mineral fibre felt, in mineral fibre production. The speed of the fibre felt is regulated by a feed-forward connected regulator (R1) based on the power consumption of the fiberizing unit (2)...

2085226 9119684 PCTABS00008 Method for regulating a weight related parameter in a mineral fibre felt, in mineral fibre production. The speed of the fibre felt is regulated by a feed-forward connected regulator (R1) based on the power consumption of the fiberizing unit (2). The regulator (R1) is corrected with a feed-back connected regulator (R2) wherein the measured signal is a weight related para...

An air intake system for a mobile combustion engine is disclosed. The air intake system comprises a membrane formed from an amorphous polymer of perfluoro-2,2-dimethyl-1,3-dioxole, the membrane exhibiting an oxygen/nitrogen selectivity of at least 1.4:1. Either the permeate section or the feed section of the membrane is adapted to be in fluid flow communication with a combustion zone of the mobile...

2064785 9119606 PCTABS00008 A method for enhancing the strength of glass containers is presented wherein the containers are preheated to 500 ·C and coated with the strength enhancement coating within six (6) hours after the heat treatment. In one embodiment, a coating station (26) for the strength enhancing coating is located between the exit from a lehr (18) and a cold end spray station (20). In ...

Method is claimed for minimizing or preventing pptn. of Rh from a Rh-phosphite complex occurring during a liq. recycle hydroformylation process for prodn. of aldehyde from an olefinic cpd., CO and H2, catalyzed by a solubilized Rh-phosphite complex, with recovery of the aldehyde prod. by distn. The method comprises distilling the aldehyde prod. from a reaction prod. soln. contg. the aldehyde, the ...

An electrolytic cell of the filter-press type which comprises plate-like anodes, cathodes, and gaskets of an electrically-insulating material, and an ion-exchange membrane between each anode and adjacent cathode to form in the cell a plurality of anode compartments and cathode compartments, the gaskets, and optionally the anodes and cathodes, each containing apertures therein which form headers fr...

POLYMER COMPOSITIONS Impact polymer compositions and peroxide-treated derivatives thereof demonstrate a good balance of low temperature properties and resistance to stress whitening when the homopolymer phase is at least predominantly homopolymeric propylene polymer and the rubber phase comprises, in descending order of proportion, ethylene, units of an .alpha.-olefin of at least 4 carbon atoms an...

Alumina-based composition for a catalyst and a process of manufacture. The alumina-based composition of the invention comprises at least one second element chosen from the group comprising the rare earths and the alkaline-earth elements and is characterised in that the weight concentration of the second element in the composition is between 10 % and 50 % and in that it has a pore volume correspond...

Alumina-based composition for a catalyst and a process of manufacture. The alumina-based composition of the invention comprises at least one second element chosen from the group comprising the rare earths and the alkaline-earth elements and is characterised in that the weight concentration of the second element in the composition is between 10 % and 50 % and in that it has a pore volume correspond...

A non-cylindrical carbon black reactor for consistently and efficiently producing high tint carbon black. A plurality of flat sides defines the inner surface of the carbon black reactor. The flat sides provide a planar surface for the introduction of feedstock hydrocarbon into the reactor, thereby eliminating or substantially reducing impingement of the feedstock hydrocarbon on the inner surface o...