Widia Gmbh

3m Innovative Properties Company

Siemens Aktiengesellschaft

Schott Glas

Framatome Anp Gmbh

Vitrulan Textile Glass Gmbh

Franken Maxit Mauermörtel Gmbh & Co.

Thorsten Gerdes

Monika A Willert-Porada

Klaus Hintzer

Achim Schmidt-Rodenkirchen

Klaus R&ouml;diger

Klaus Dreyer

Tilman C Zipplies

Arne Thaler

Markus E Hirschberg

Gerhard Gradel

Konstantin Mierdel

Wolfgang D&ouml;rr

Klaus Rodiger

Thomas G Kolbeck

Bruno Schmitt

Gregg D Dahlke

Denis Duchesne

Hartmut Westphal

Mark W Muggli

Hildegard R&ouml;mer

Hans Kolaska

Thomas Kolbeck

Udo K&ouml;nig

Michael Kohl

Gunther J Kaempf

Matthias Wieland

Thomas Berger

Thomas W Schoettle

Ulrich Schadeck

Sebastian Seidl

Monika Willert-Porada

Jens Herdegen

Heiko Zettl

Uwe Kohlberg

Stephan Aschauer

Peter Bauer

Andreas Rosin

Sebastian Stephan Groppweis

Friedbert Anton Scharfe

Stefan Zelder

Andreas Spiewok

Christoph Schymura

The process produces a fluorinated olefin from a fluorinated copolymer having at least one of sulfonic acid groups, carboxylic acid groups, or salts thereof. The process includes heating the fluorinated copolymer at a first temperature not more than 450° C. to decompose at least one of the sulfonic acid groups, carboxylic acid groups, or salts thereof to form a partially pyrolyzed intermediate and subsequently heating the partially pyrolyzed intermediate at a second temperature of at least 550° C. to produce the fluorinated olefin.

Process of making fluoroolefins by thermal decomposition of fluorinated ionomers

Methods of converting a variety of fluorinated materials into anhydrous hydrogen fluoride are described. The methods include thermally decomposing the fluorinated materials into a gaseous effluent comprising hydrogen fluoride and carbon dioxide. This gaseous effluent is then treated with carbon at a temperature of at least 830° C., converting the carbon dioxide to carbon monoxide (CO) and producing a gaseous product comprising the hydrogen fluoride, which can be condensed to generate anhydrous hydrogen fluoride. These methods can also be used to convert water contained in the gaseous effluent into hydrogen.

Converting fluorinated materials into anhydrous hydrogen fluoride

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

Upcycling perfluoropolymers into fluorinated olefins

The present invention relates to a battery separator containing a composite that in turn contains the following components: (A) 5 to 95 wt.-% of at least one carrier material that consists of glass fibers, the carrier material being selected from the group comprising nonwovens, laid scrims, knitted fabrics, woven fabrics and/or mixtures thereof; (B) 5 to 95 wt.-% of at least one glass platelet having an average thickness of 0.05 &#x3bc;m to 30 &#x3bc;m; and (C) 0 to 95 wt.-% of at least one binder; the components (A), (B) and (C) adding up to 100 wt.-% and the battery separator having a porosity in the range of 10 to 70% and a total thickness of 0.01 mm to 0.5 mm. The present invention further relates to methods for producing the battery separator and to the use thereof in a battery.

Glass-based battery separator

Provided is a process for producing fluorinated alkenes by providing a microwave plasma in a reactor chamber, introducing a protective gas feed into the reactor chamber, and contacting a conversion feed comprising at least one fluorinated linear or branched alkane with the plasma. Also provided are an apparatus and the use of the process and the apparatus.

Process and apparatus for producing fluorinated alkenes

The invention relates to a process for producing free-flowing calcium fluoride particles from a diluted aqueous solution of hydrogen fluoride comprising the step of reacting the diluted aqueous solution of hydrogen fluoride with calcium carbonate particles at a temperature of less than 50&#xb0; C. The invention further relates to the use of the free-flowing calcium fluoride particles for the manufacturing of anhydrous hydrogen fluoride.

Method for the production of free flowing synthetic calcium fluoride and use thereof

Process for producing fluorinated olefins from fluorinated materials, the process comprising thermally decomposing the fluoropolymers into fluoroolefins in a reactor having a feeding zone where the fluorinated materials are fed into the reactor and a decomposition zone where the fluorinated materials are thermally decomposed and wherein the thermal decomposition is carried out in the presence of microwave irradiation.

Process of making fluoroolefins by thermal decomposition of fluorinated materials

The present invention relates to a method and a device for crushing glass bodies, in which the glass body is arranged in a microwave field so that the said glass body is crushed on account of the resulting thermal stresses. In addition, a local plasma which results in further thermal stresses, is produced on the surface of the glass body Since the glass body to be crushed does not come into contact with crushing means, for example rollers or the like, the pieces of broken glass cannot be contaminated by abrasion particles of the crushing means. The plasma permits a rapid and economic crushing of the glass bodies.

Method and device for crushing glass bodies by means of microwave heating

The invention relates to a device for adjusting the distribution of microwave energy density in an applicator which forms a resonator chamber and in which the radiation generated by microwave generators is guided to the applicator wall by waveguides; and to a use for this device. According to the invention, several electroconductive coupling pins ( ) are used, each of these extending preferably vertically into both the waveguide chamber and the applicator resonator chamber, in order to feed in the microwaves with as little loss as possible and to enable the field distribution in the resonator chamber to be modified. The invention is especially suitable for producing a plasma.

Device for adjusting the distribution of microwave energy density in an applicator and use of this device

A furnace is provided for microwave sintering of nuclear fuel. A stationary wave is generated in an antenna cavity and used to extract microwaves through slots into a resonance chamber containing the nuclear fuel. A position of the slots is adjusted in such a way that a predetermined temperature profile is produced in the nuclear fuel.

Furnace for microwave sintering of nuclear fuel

A method and a furnace are provided for microwave sintering of nuclear fuel. A stationary wave is generated in an antenna cavity and used to extract microwaves through slots into a resonance chamber containing the nuclear fuel. A position of the slots is adjusted in such a way that a predetermined temperature profile is produced in the nuclear fuel.

Method and furnace for microwave sintering of nuclear fuel

A hard metal or cermet sintered body and a method of making it wherein a solid phase containing WC and a binder phase are formed together with WC platelets by direct microwave irradiation, utilizing reactive sintering to form the WC at least in part and to produce the platelets.

Hard metal or cermet sintered body and method for the production thereof

The invention concerns a composite body consisting of a hard metal, cermet or ceramic substrate body and at least one layer of a mechanically resistant material, a ceramic substance, a diamond-like layer, amorphous carbon and/or hexagonal boron nitride. The invention also concerns a method of producing this composite body, wherein, when the green compact has been dewaxed, with its pores still open and whilst it continues to be heated as from a temperature of between 600&deg; C. and 1100&deg; C., it is acted upon by sublimable solids and/or reaction gases which are necessary for coating purposes. The temperature of the green compact is then further increased and the latter is fully compressed by sintering, before one or more layers of the above-mentioned type is/are applied.

Composite body comprising a hard metal, cermet or ceramic substrate body and method of producing same

A composite body of a microwave sintered composition of a cermet or hard metal as a modified surface layer which can promote the microwave sintering and can be of a thickness of 0.01 to 1 mm with a density gradually decreasingly inwardly or a thickness up to 1 mm and having locally distributed compacts therein or which can be a layer of a thickness of 1 to 10 mm of a substantially pure metal or which can have a binder metal removed to a depth of about half the grain thickness of a hard material such as WC.

Composite body, especially for a cutting tool

A cermet or hard metal body is formed from elemental metal, carbon and a nitrogen source such as a metal nitride or an organic nitrogen source by microwave sintering such that chemical reaction occurs with the formation of carbides and/or carbonitrides. The elemental metal, carbon and nitrogen source are mixed together and prepressed to form the green body which is subjected to the microwave radiation in reaction sintering.

Composite body and method of producing the same

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Eckersdorf, Germany

Thorsten Gerdes