Pressure-resistant polyurethane-polyurea particles with textured internal mass prepared from a liquid phase immiscible with water and containing organic solvents, isocyanate prepolymers and optionally active substances or mixtures of active substances, the liquid phase being dispersed in an aqueous phase at temperatures of from 0 DEG C. to 95 DEG C., wherein the liquid organic phase contains as ...

A method for correction of measurements of borehole parameters for errors caused by magnetic interference includes surveying the borehole in the absence of substantial magnetic interference to determine reference values for the components of the local gravitational and local magnetic field along three mutually perpendicular axes. The reference values so determined are used for downhole correction ...

PURPOSE:To prevent defective bonding due to the vibration of the nose sections of inner leads by wire-bonding the inner leads and a chip under the state in which the chip is supported by a first tie bar connecting sections among the inner leads. CONSTITUTION:A chip on a bed 10 and the nose sections of inner leads 11 are wire-bonded, and a lead frame in a wire bonding region containing no first tie...

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 ...

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 ...

EL INVENTO SE REFIERE A UN METODO DE TALADRAR ABERTURAS DE LINEAS AUXILIARES (A) BLOQUEADAS POR EL REVESTIMIENTO DE RENOVACION DE UNA TUBERIA PRINCIPAL (B) QUE COMPRENDE LA COLOCACION DE UN OBTURADOR (1) EN LA ABERTURA DE CADA LINEA AUXILIAR (A) PREVIAMENTE AL REVESTIMIENTO, LLEVANDO DICHO OBTURADOR (1) UN MARCADOS DE POSICION (14) QUE CONSTA DE UNA BOBINA DE ANTENA Y UN RESONADOR ADAPTADO PARA SU...

LA INVENCION SE REFIERE A UN PROCESO PARA APLICACION DE UNA CUBIERTA PARA TEJADO, CARACTERIZADO PORQUE SE APLICA ESPUMA DE POLIESTER DE 0.1 A 5 CM, MEZCLANDO UNA COMPOSICION CAPAZ DE ENDURECIMIENTO, SOBRE LA BASE DE UN POLIESTER INSATURADO Y UN MONOMERO QUE CONTIENE UNA INSATURACION ETILENICA, CON UN GAS PARA OBTENER UNA ESPUMA, LA ESPUMA SE APLICA IN SITU SOBRE UN TEJADO CON UNA SUPERFICIE IRREGU...

EN EL METODO LAS SEÑALES ELECTROMAGNETICAS SE TRANSMITEN ELECTRICAMENTE A UN RELOJ ACTIVADO EN EL POZO, LAS SEÑALES QUE CONTIENEN DATOS PARA REGISTRO DE PARAMETROS, USAN LA ENVOLTURA DEL POZO COMO LINEA DE TRANSMISION, ARRIBA MEDIANTE UN UN RECEPTOR DISPUESTO EN EL EXTREMO SUPERIOR DEL POZO, ESTE RECEPTOR SE ACTIVA MEDIANTE UN RELOJ RECEPTOR SINCRONIZADO, PARA LA CORRESPONDIENTE ACTIVACION CICLICA...

Collagen foils can be used as membranes for pervaporation processes in the form of flat or tubular foils. Preferred applications are given.

A hydraulic drive circuit system is equipped with an accelerator pedal (2) and an accelerator lever (21) for respectively instructing target revolution numbers for an engine (1), a link plate (24) for selecting greater one of the instruction values, and a linkage (29) and a switch (30) for controlling valves (27,28) respectively so as to close the flow passage of a line (26) interposed between a c...

Rubber particles comprising a hydrogenated block copolymer of a conjugated diene and a vinyl aromatic compound, said particles having a glass transition temperature of -30 DEG C. or less, a gel content of at least 10%, an average particle size of 0.01 to 5.0 mu m, and a micro-phase separating structure having hard segments and soft segments, wherein hard segments and soft segments are alternatel...

Depositing polycrystalline films from a gas phase comprising carbon-contg. gases by CVD, where the crystallites to be deposited are deposited from the energetically activated gas phase at a pressure of 0.00005 to 1 bar on to a substrate heated to 350 to 1200 deg.C, comprises (1) a first film, which is not completely sealed and which consists of individual crystallites, is deposited on the substrat...

Each of e.g. five individual switch units (2-6) comprises a rotationally symmetrical cylinder with an anode (8) and a cathode (9) facing each other across a discharge chamber (10). The discharge (12) is triggered by a hollow control electrode (20) insulated electrically from the cathode (9). The chamber (10) and the space (19) within the hollow electrode (20) are filled with gas from a reservoir (...

The invention relates to a process for the separation of a mixture of water, methyl ethyl ketone and ethylene glycol mono-n-butyl ether in water and methyl ethyl ketone with ethylene glycol mono-n-butyl ether, the separation being carried out by means of pervaporation.

The tongs have a foot (1) with gripping surface (2). Extending from the foot and offset to one side is a curved hand grip (5). Pivoted (6) near the foot is a lever (7) with a matching gripping end (8) and curved hand grip (9) at the other end. The weight of the hand grip allows the tongs to open without recourse to a spring. A piece of glass gripped in the tongs is accessible from three sides. The...

Aq. emulsions of curable organopolysiloxane resins (I) are produced by partial hydrolysis of alkoxysiloxanes of formula (II) with water in the presence of an acid catalyst, to 30-70% conversion, followed by deactivation of the catalyst and emulsification. In formulae, R1 = 1-8C alkyl or Ph (at least 90% of gps. R1 = Me); R2 = 1-4C alkyl (at least 70% Me or Et); a = 1.0-1.3; and b = 0.2-1.0. The pr...

Separation of a mixture of water, methylethyl ketone, and ethylene glycol mono-n-butyl ether into a) water and b) methylethyl ketone containing ethylene glycol mono-n-butyl ether of the disclosure: The invention relates to a process for the separation of a mixture of water, methylethyl ketone, and ethylene glycol mono-n-butyl ether into a) water and b) methylethyl ketone containing ethylene glycol...

To produce a cellulosic article, a cellulosic amine oxide solution is pressed through a nozzle or through a slit, then passed through an air slit and finally coagulated in a precipitation bath. According to the invention, it is not stretched in the air gap, i.e. the ratio of discharge rate to hole emergence rate is at most 1; only the coagulated cellulose is stretched or deep-drawn.

A gamma -ray-sterilizable hydrophilic porous material which comprises having supported on at least part of the surface ofa continuous layer made of a synthetic polymer compound forming a porous substrate not less than 5% by weight, based on the substrate, of a hydrophilic and gamma -ray-resistant polymer and possessing an average pore diameter in the range of 0.02 to 20 mu m, a porosity in the ...

A composition for the production of heat-resistant crosslinked ethylene resin foams of open-cell type, comprising: (A) 100 parts by weight of an ethylene resin, (B) 1 to 30 parts by weight of a blowing agent, (C) 0.2 to 10 parts by weight of an organic peroxide, (D) a component selected from the group consisting of (a) 0.1 to 10 parts by weight of a trifunctional monomer and 0.1 to 5 p...