Acyloxyhexenoic acids are produced by reaction of butadiene and acetic acid with metal salt oxidants in a process involving electrolytic regeneration of the metal oxidants during the reaction.

Polyurethane foams which may be rendered flame resistant by the addition of flame retardants are produced by reaction between a carbohydrate, a polyisocyanate and water in the presence of a suitable surfactant and polyurethane forming catalyst.

A process of preparing shaped products starting from dispersions which contain at least one coagulable, amphoteric high molecular substance by passing the dispersion through an extruder into a coagulation bath which may be provided with electrodes whereby the coagulation is effected by a change in pH such that the isoelectric point of the substance is passed and care is taken that the dispersion c...

PROCEDIMIENTO Y DISPOSITIVO PARA MEDIR LA OVALIZACION DE UNA CONDUCCION O CONDUCTO DE SECCION CIRCULAR, DE MATERIAL FERROMAGNETICO, ESPECIALMENTE DE UNA CONDUCCION DE ACERO REVESTIDA DE HORMIGON Y MAS PARTICULARMENTE REVESTIDA CON UN MATERIAL ANTI-CORROSION Y CON HORMIGON PROVISTO DE ARMADURAS GRUESAS. EL PROCEDIMIENTO CONSISTE EN DESPLAZAR UN CAPTADOR ELECTROMAGNETICO DE MEDIDA A LO LARGO DE UN C...

PROCEDIMIENTO PARA FABRICAR UN ARTICULO CONFORMADO QUE SEA RESISTENTE A LOS ALIMENTOS GRASOS EN CONDICIONES DE UN HORNO DE MICROONDAS. EN UNA PRIMERA FASE, SE FORMA UNA MEZCLA DE POLI(P-METILESTIRENO) Y UNA CANTIDAD DE TRIALILO O ISOCIANURATO DE TIALILO COMPRENDIDA ENTRE EL 0,1 Y EL 10 POR CIEN, QUE POSTERIORMENTE SE CONFORMA PARA FORMAR EL ARTICULO. A CONTINUACION SE IRRADIA EL MISMO CON UNA CANT...

PROCEDIMIENTO PARA LA OBTENCION DE ELASTOMEROS DE POLIURETANO A BASE DE POLIESTER, MICROCELULAR Y DE PIEL INTEGRAL. CONSISTE EN LA REACCION DE UN POLIESTER ALIFATICO CON HIDROXILO TERMINAL, UNISOCIANATO Y/O UN PREPOLIMERO DE ISOCIANATO DE UN GLICOL Y/O UN TRIOL ALIFATICO O AROMATICO, EN PRESENCIA DE UN AGENTE DE EXPANSION, UN CATALIZADOR, UN AGENTE EREGULADOR DE LAS CELDILLAS Y AL MENOS, UN PLASTI...

Coating method for metal pipes in which an adhesive film is applied to a heated metal pipe having a temperature of at least 200 DEG C and an ethylene polymer in powder form and/or an ethylene polymer sheet just leaving an extruder are applied on top, the coating is then allowed to cool to a temperature of about 110 to 170 DEG C and in a further step an unsupported ethylene polymer film having a me...

The present invention discloses a data processing system where a plurality of vector registers consisting of plurality of elements are provided between a main memory unit and an operational processing unit, the desired data is transferred to the vector registers from the main memory unit and is held therein, and various processings such as a logical operation are carried out by sequentially access...

Heat-exchanger 11, especially for preheating particulate glass batch or cullet, comprises plurality of tubes 17 through which the batch descends by gravity and around which ascends heating gas (e.g. waste gas from melting furnace 10, the gas being made turbulent by baffles 27. Valve 22 separates the heated batch into a major portion, which is fed via charger 24 to furnace 10, and a minor portion, ...

ELECTRODO MULTIPLE DESECHABLE PARA USO MEDICO. COMPRENDE: DOS SOPORTES IDENTICOS (124) PERFORADOS Y RECUBIERTOS DE ADHESIVO (130) EN UNA DE LAS SUPERFICIES; UNA LAMINA PLASTICA SEMIFLEXIBLE (128), FIJADA A LOS SOPORTES POR SUS CARAS; MEDIOS DE SOPORTE (144) DE CADA TERMINAL DE ELECTRODO, DISPUESTOS EN LA LAMINA Y CON UN DISEÑO IMPRESO DE TINTA CONDUCTIVA EN ESTA SUPERFICIE DE FIJACION; UNA LAMINA ...

PROCEDIMIENTO DE FABRICACION DE ELECTRODO DESHECHABLE PARA USO MEDICO. DOS TIRAS DE MATERIAL POROSO (100), MUTUAMENTE ADHERIDAS, SUFREN PERFORACIONES REGULARMENTE ESPACIADAS Y EFECTUADAS POR UN PUNZON O MATRIZ (104). SOBRE LA PERFORACION SE MONTA UNA MATRIZ POROSA (54), QUE SE IMPREGNA DE GEL ELECTROLITICO, Y UN MEDIO DE SOPORTE (43) PARA CADA TERMINAL A PARTIR DE UNA LAMINA SEMIFLEXIBLE (42) ADHE...

SOPORTE DE TERMINAL DE ELECTRODO DESECHABLE PARA USO MEDICO. EL ELECTRODO CONSTA DE UNO O VARIOS TERMINALES, ACOPLADOS A UN SOPORTE (43) QUE VA ADHERIDO POR CADA UNA DE SUS CARAS A DOS PIEZAS PLANAS POROSAS. EL SOPORTE DEL TERMINAL CONSTA DE UNA LAMINA PLASTICA SEMIFLEXIBLE (42), A LA QUE VA FIJADA UN APENDICE LIBRE K(50) PARA CONTRACTAR EL TERMINAL. EL APENDICE SOPORTA UN DISEÑO CONDUCTIVO (48), ...

In order to minimize the risk of infection when a large number of animals are injected with the same needle, the injecting gun is provided with a stainless steel sleeve which surrounds the needle. The sleeve comprises a first tube attached to the needle connecting body and a second tube telescopically slidable within the first tube against a spring. A detachable plastics cap incorporating a steril...

In the whole broth extraction of avermectins, the pH of the whole broth is adjusted with mineral acid and the broth is then contacted with a solvent extractant so that the avermectin-active component is taken up by the solvent. The new avermectin-rich extractant is then processed through a solvent concentration step and the avermectin isolated by conventional crystallization. The extractant is the...

Derivatives of C-076 compounds of formulae 1,2 and 3, isolated from the fermentation broth of S.avermilitis ATCC 31267, 31271 and 31272, that produced the original C-076 compounds, retaining the biological activity of the parent compounds, e.g. as antiparasitic agents, wherein R1 is -OH and R2 is sec-butyl; )b) R1 is = O and R2 is sec-butyl. wherein R3 is hydrogen or hydroxyl; <...

Disclosed are novel polyhydric alcohol partial esters of polycarboxylic acids from Diels-Alder adducts of maleic anhydride and a straight chain unsaturated carboxylic acid having ten to twenty-five carbon atoms. The partial esters can be subsequently sulfated. The polyhydric alcohol can be a mono- or disaccharide such as sucrose or mannose. The partial esters are surfactants which are dermatologia...

New derivatives of the istamycin B series of compounds are provided, which are 3-O-demethylistamycin BO, 3-O-demethylistamycin B and 3-O-demethyl-2''-N-formimidoylistamycin B represented generally by Formula I or specifically by Formulae Ia, Ib and Ic, respectively. Compound Ia is useful as an intermediate for the preparation of Compounds Ib and Ic and the latter two compounds exhibit a high antib...

The present invention relates to the benzoyl- and alpha -hydroxybenzyl-phenyl-oside derivatives of general formula: (I) [in which Z is CO or CHOH, X1, X2, X3, X4 and X5, which are identical or different, each represent an atom of hydrogen, an atom of halogen, an alkyl group with 1 to 4 carbon atoms, an alkyl group with 1 to 4 carbon atoms substituted by one or more atoms of halogen, an ...

PROCEDIMIENTO DE PRODUCCION DE 20-DEOXO-4-SEMICAROSILTILOSINA O DE UNA SAL DE LA MISMA. CONSISTE EN REDUCIR EN GRUPO -CHO EN LA POSICION 19 DE LA TILOSINA AL GRUPO CH2OH, DESHIDROXILAR EL GRUPO CH2OH PARA OBTENER 20-DEOXOTILOSINA Y LA DE -4ELEVAO,-MICAROSILACION DE LA 20-DEOXITILOSINA OBTENIDA CON ACIDO DILUIDO. LA DE-4 ELEVADO,-MICAROSILACION DE LA 2O-DEOXOTILOSINA PUEDE EFECTUARSE MEDIANTE HIDRO...