The invention provides a process for the production and utilization of water-soluble salts selected from the group consisting of water-soluble salts of carboxylic acids and water-soluble salts of amino acids, comprising reacting an aqueous feed solution containing an amino or carboxylic acid or their anions with a water-soluble base, in indirect contact via a semi-permeable membrane, the membrane ...

A method of manufacture of an abrasive body for use as a wear part, cutting tool insert or the like, includes the steps of providing a mixture comprising an organometallic polymer capable of being pyrolised to produce ceramic particles, and a mass of abrasive particles such as diamond or cubic boron nitride, applying heat to the mixture to cause the polymer to polymerise, and sintering of the pyro...

The method and device is directed to determine the strength based upon monitoring the variations in the intensify of a narrow beam of light transmitted through the sheet as the sheet moves perpendicularly through the beam. Use is made of a sensor (10) consisting of two halves. The source half (12), disposed on one side of the sheet of paper (16), directs a beam of light through the sheet (16) whos...

A rigid foam, especially a largely closed-cell polyurethane or polyisocyanurate rigid foam, includes a cell structure being formed by the expansion of rigid foam raw materials with carbon dioxide as an inflating agent. The cell structure is substantially homogeneous and has a cell content of substantially CO2 inflating agent and proportions of a physical inflating agent being at least substantiall...

A method for determining the amount of an analyte in a sample fluid utilizing an assay element which comprises at least one reagent layer. The assay method includes the steps of optically reading a signal producing species, e.g., a fluorescent label, a first time prior to depositing the sample fluid on the assay element and a second time, at the same wavelength and in the same location within the ...

The present invention is directed to a method for making L-lactide from aqueous L-lactic acid. Aqueous lactic acid feed for present purposes comprehends an aqueous mixture of one or more of L1A, L2A, and L3A, optionally with LD being present. L-lactic acid is the preferred feed configuration for making L-lactide, and is to be understood even though the configuration symbol is not used throughout t...

La presente invenzione tratta di riduzioni di contenuto di metalli pesanti nelle acque di scarico di pratiche odontoiatriche, dove la presenza di amalgami causa problemi di inquinamento ambientale, che finora si è cercato di dominare installando separatori di amalgama, che tuttavia non sono sufficienti a causa della possibilità di formazione di composti solubili o ad esempio di ioni di mercurio. I...

Il trovato è riferito ad un composto per la corretta rilevazione di impronte dentali.Esso si presenta in soluzione liquida e si caratterizza per il fatto di comprendere un tensioattivo compatibile con i materiali siliconici combinato con un solvente.Viene vantaggiosamente addizionato un leggerissimo colorante ed un aroma.; The compound for the correct taking of dental impressions is in a liquid so...

Macchina per il lavaggio soprattutto domestico, comprendente una vasca di lavaggio (1), un serbatoio (3) contenente detersivo in polvere, un dosatore (6) di tale detersivo, una bocca di entrata (14) in detto dosatore, un condotto che collega tale dosatore a detta vasca, in cui detto serbatoio (3) contiene una pluralità di dosi di detersivo atti a fornire alla macchina il detersivo richiesto in più...

The prodn. of H2 and CO, involves contact in a reaction zone at high temp. in a fluidised bed of particulate solid catalyst and particulate solid diluent with a low mol. wt. hydrocarbon feed comprising methane, a steam feed and an oxygen feed to produce partial oxidn. and steam reforming reactions. Localised burning and excessive heat generation at the location of oxygen injection results from the...

Macchina per il lavaggio della biancheria o di stoviglie, comprendente una vasca di lavaggio, un programmatore (8), circuiti elettrici che connettono detto programmatore ai vari organi funzionali della macchina, un elemento di riscaldamento (20) del liquido del bagno di lavaggio, dotata di mezzi atti a far funzionare detta macchina con differenti tempi di ciclo e differenti temperature di funziona...

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...

Metal carbide or silicon carbide foam intended to be used as catalyst or catalyst support for the chemical or petrochemical industry or for exhaust systems, and process for its manufacture. The foam takes the form of a three-dimensional network of interconnected cages in which the length of the ridges is between 50 and 500 micrometers, whose density is between 0.03 and 0.1 g/cm<3> and whose BET su...

La presente invenzione si riferisce a nuovi biomateriali, denominati "soluzione legante per protesi d'osso granulari" e "protesi d'osso sotto forma di pasta", essenzialmente costituiti da derivati dell'acido ialuronico.; Bonding solutions for granular bone replacements are provided, comprising hyaluronic acid or hyaluronic acid derivatives such as hyaluronic acid esters and hyaluronic acid antibio...

A ceramic body of controlled porosity is formed by coating unidirectional fiber carriers with a hardenable liquid resin bearing powdered ceramic material, which resin is subsequently cured, hardened, or cooled to provide a green body which may be assembled with similar layers, in a desired shape, and subsequently sintered, to form a ceramic body having continuous pores corresponding to the positio...

Hydantoin derivatives of the general formula I in which n is 3 or 4, R<1> is alkyl or a radical of the formula with R' and R'' being hydrogen or alkyl and R<2> is hydrogen, -NH-CO-NH2 and optionally substituted alkyl, and processes for the preparation thereof and the use thereof for inhibiting platelet aggregation are described.

A disposable safety syringe which comprises a barrel (1), an injection needle (4) fitted on the fore end of barrel (1), a plunger (6) being slidable in barrel (1) from a syringe-filling utmost retracted position to a syringe-emptying forwardmost position, and which is fitted with a manually drivable stem (7) protruding from the rear end of barrel (1), a longitudinally slidable protective sleeve (1...

A method of data recovery in systems employing error-correction coding techniques is described. The technique may be used, for example, in conjunction with a data storage device or a data communications network. Several trials of accessing or transmitting the ECC-protected data are performed. The data from each trial is decoded, and is also saved. If none of the trials results in the successful de...

The invention relates to synthetic oligonucleotides and more particularly to the determination of nucleotide sequences of synthetic oligonucleotides having non-phosphodiester internucleotide linkages. The invention provides a method for sequencing such modified synthetic oligonucleotides.

There is now provided a body of cemented carbide, Si3N4 or another ceramic material, coated by at least one CVD or PVD diamond or cBN layer with a chromium nitride, chromium carbide or chromium carbonitride layer. The chromium-containing layer is outside the diamond layer which in the case of more than one diamond layer is the outermost diamond layer of the coating. Improved machining properties a...