1357415 Fluorination; chlorofluorination and disproportionation MONTECATINI EDISON SpA 9 June 1971 [10 June 1970] 17890/71 Heading C2C [Also in Division B1] Gas phase fluorination, chlorofluorination and disproportionation of hydrocarbons and halohydrocarbons, namely (i) fluorination of a halogenated ethane containing at least one chlorine atom with hydrogen fluoride to provide a fluorinated or ch...

1363064 Pyrimidines and pteridines WELLCOME FOUNDATION Ltd 13 July 1971 [27 July 1970] 36289/70 Heading C2C Novel compounds of the Formula IV wherein Z is C 1-4 alkyl optionally having a methylene group attached to the ring system or hydroxymethyl may be prepared by condensing a 2 - amino - 4 - halogeno - 6 - hydroxy - 5- nitropyrimidine with a compound V The compounds IV may be reductively cyc...

The plates of lead storage battery cells are supported at least from the top by resilient means attached to the cell cover. They may also be supported by resilient means from the cell bottom. The respective resilient means are placed diagonally relative to each other. At least the bottom support means has variable resiliency depending on the external forces applied to the cell.

To unravel a terminal portion of a textile yarn, in particular in preparation for joining that yarn to another one by twisting their ends together, an extremity of the yarn is vibrated to loosen the fibers while a part of the yarn spaced from its end is held fast and the yarn extremity is combed or subjected to an aspirated air stream to remove loose fibers. In a preferred arrangement the air stre...

TITLE Elastomeric Sponge An expandable composition of a solid synthetic vulcanizable elastomer of ethylene/higher alpha-olefin/ nonconjugated diene copolymer or polychloroprene, a blowing agent, and a curing agent for the elastomer, said composition containing from about 5-25% based on the weight of total polymer of an ionomer resin which is an ethylene polymer containing at least about 50 mole pe...

An umbrella cover (10) is provided in which a sleeve (10) contains a substantially rigid telescoping support rod (20) which enables the cover (10) to be readily mounted on an umbrella canopy (12) while facilitating compact storage of the cover (10). The lower end of the sleeve (10) includes a flap portion (16) which is folded back to form a cuff (24) prior to lifting the cover (10) over the umbrel...

The herbicide phenmedipham is prepared from meta-aminophenol by reaction with phosgene in an alkyl alkanoate solvent to make meta-hydroxyphenylcarbamic acid chloride, followed by reaction of the chloride with methanol and then reaction of the obtained methyl meta-hydroxyphenylcarbamate with meta-tolyl isocyanate, to obtain the required methyl 3-m- toylcarbamoyloxyphenyl-carbonate.

The main body contains a melting chamber with opposite inlet and outlet channels, a heating device and transport mechanism conveying the thermoplastic material through the chamber with the material continuously heated, melted and extruded. The melting chamber consists of >=2 sections one of which begins at the chamber inlet and has a circular inner cross section while the second section has a cont...

PURPOSE:To gasify a waste tire by simple dry distillation without necessitating any expert, by leading a branched pipe from an air pipe connecting the bottom of a cylinder with a blower and placing the opening of the branched pipe near a gas burner tip. CONSTITUTION:A used tire 12 is piled up through a waste tire inlet 52 in such a way that the center hole of the tire is connected to an air supply...

APARATO Y PROCESO PARA LA FABRICACION DE CUBIERTAS PARA AUTOMOVILES. EL APARATO CONSTA DE UN CARRO (12) LONGITUDINALMENTE MOVIBLE; DE MEDIOS PARA GUIAR EL MOVIMIENTO LONGITUDINAL DE DICHO CARRO (12); DE UN CABEZAL (14) MONTADO SOBRE DICHO CARRO; DE UN TAMBOR (11) PARA EL MONTAJE DE LA CUBIERTA; DE UN SOPORTE DE TAMBOR (15) MONTADO SOBRE EL CARRO; DE UNA PLURALIDAD DE ESTACIONES OPERATIVAS LONGITUD...

Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with monofunctional active hydrogen compounds prior to polymerization or subsequent to the polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved ...

Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with halogenated alcohols subsequent to polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved flame retardant physical properties.

The invention provides a method for the production of a pigment preparation for colouring linear polyesters in the met, which comprises forming a concentrate from 20 to 80 parts by weight of pigment and 80 to 20 parts by weight of a polyester which melts between 60.degree. and 160.degree.C. by kneading in the presence of a salt and asolvent or by a flushing the pigment into the melt of the polyest...

There is disclosed a process for the production of tack-free, pourable, filler containing elastomer powder which comprises (a) dispersing a carbon black filler in water; (b) mixing the thus dispersed carbon black filler with an elastomer latex; (c) coagulating the thus produced mixture of elastomer latex and carbon black with an acid/alum solution; (d) partitioning the thus coagulated suspension w...

1394604 Air laid web former E I DU PONT DE NEMOURS & CO 20 April 1972 [20 April 1971] 18346/72 Heading DIN An apparatus for forming textile webs on a moving screen 26 has a duct through which a closely controlled low turbulence air flow passes and into which a uniform layer of fibres 22 is projected through a slit at at least 3000 ft/min; the fibres remaining as a distinct layer within the thickne...

A collar for holding an instrument in a drill string is provided with a housing for attachment to the instrument, and elastomeric suspension means connecting the housing to the collar. Both housing and suspension means are pierced to pass drilling mud. A passage in the housing is controlled by a first valve responsive to the instrument. A second valve controls the passage defined between the housi...

In an arrangement for supplying power to an electrical load, particularly an electrical shaver, from an alternating- or direct-voltage system by means of a transformer, the primary winding (14) of which and the secondary winding (24) of which are arranged DC-isolated in a mains voltage section (1) and a low-voltage section (2), the transformer consists of a pot core having a primary and a secondar...

A process is provided for the production of a mixture of butadiene-acrylonitrile polymer and zinc peroxide which comprises (i) reacting an agitated aqueous mixture of French Process zinc oxide, sulphuric acid and hydrogen peroxide to form an aqueous slurry of a mixture of zinc peroxide and zinc oxide, and (ii) mixing with said slurry a latex of a butadiene-acrylonitrile polymer, followed by coagul...