Emery Oleochemicals Gmbh

Schubert & Salzer

Other

E.i. Dupont De Nemours and Company

Henkel Kommanditgesellschaft Auf Aktien

Suncor Energy Inc.

Schubert & Salzer Maschinenfabrik Aktiengesellschaft

Henkel Kommanditgesellschaft

Deutsche Institute Fur Textile-und Faserforschung Stuttgart

Halliburton Energy Services, Inc.

Cognis IP Management Gmbh

Biotronik Vi Patent Ag

Heinz Muller

Peter Artzt

Gerhard Egbers

Diana Maker

Nadja Herzog

Ullrich Stark

Alfred Westfechtel

Paul W Yngve

Michael Fefer

Jun Liu

Heinz Neher

Wolfgang Ritter

Holger Tesmann

Stephan Von Tapavicza

Gernot Kolberg

Wolfgang Geistert

Erhard Flach

Claus Harder

Eberhard Grimm

Hans-Ulrich Hempel

Kurt Ziegler

Margarete Grunert

Kimberly Jo Burrows

Anton Schenek

Rupert Karl

Karl-Heinz Lehmann

Jeffrey P Kirsner

Franz Schreyer

Hartmut Busching

Hermann Guttler

Max Hartmannsgruber

Roland Rohde

Ramadan A Ali

Jacek Wokaun

Stephan Wittmann

Gunther Bohm

Bernd (deceasecd) Heublein

The present invention relates to a drilling composition comprising: I) an organic phase comprising components i, from about 20 wt. % to about 99,999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon, ii. from about 0.001 wt % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester, II) from 0 to about 50 wt. %, based on the total weight of the composition, of water or aqueous phase, III) from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive, wherein the sum of the weight components I) to III) is 100 wt %, to a process for preparation of a drilling composition, to uses of a drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, to a process for production of at least one of oil and gas.

Drilling composition, process for its preparation, and applications thereof

The present invention relates to a drilling composition comprising an organic phase having at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon, at least one ester, water or aqueous phase, and at least one additive. The present invention additionally relates to the use and preparation of the drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, and to a process for production of oil and/or gas.

The present invention concerns a method for the production of carboxylic acid esters containing the steps: The present invention also concerns the use of a ship.

Method for the production of carboxylic acid esters during a transport

The use is described of oligoglycerol fatty acid esters, produced from

Oligoglycerol fatty acid ester lubricant additives for drilling fluids

The present invention relates to a crosslinked glycerol or oligoglycerol ester which can be obtained by crosslinking a non-crosslinked glycerol or oligoglycerol ester which can be obtained by reacting an

Crosslinked glycerol or oligoglycerol esters, and use thereof as an additive in drilling fluids

Oligoglycerol esters of fatty acids, preferably of unsaturated fatty acids, can be used as thickeners in oil-based drilling mud compositions. The oligoglycerides are preferably employed in invert drilling muds, the oily phase of which contains paraffins.

Oligoglycerol fatty acid ester thickeners for oil-based drilling fluids

The use of oligoglycerol fatty acid esters, prepared from

Oligoglyercol fatty acid ester additives for water-based drilling fluids

The coating of the pressure roller () of a drawing roller frame for spinning frames comprises an outer layer and an inner layer fixed to the core of the pressure roller. The outer layer is thinner and harder than the inner layer and is embodied as an endless belt () which loosely surrounds the inner layer such that the belt can be displaced in relation to the inner layer. In order to improve the running of the belt, the belt is guided over a deflector rail (), the cross-sectional area (u) of the rail being wider than the average staple length of the fibre material (F) drawn on the drawing roller frame. Furthermore, the belt is designed in such a way that it comprises a double thread interlining, one thread interlining being wound counter to the second thread interlining such that the threads of one thread interlining cross the threads of the second thread interlining.

Wearing coating for delivery rollers of a drawing roller frame

Use of selected polyvinyl acetate dispersions for the surface

A method for manufacturing a combined yarn, by open end rotor spinning, suitable for use in carpets is disclosed.

Combined carpet yarns by open end rotor spinning

An improved method and apparatus for stringing up or re-stringing a balanced ply-twisted combination yarn of two components to insure strong piecing-up points. The end of the combination yarn and the end of a continuous filament yarn, which becomes a component of the combination yarn, are both prepared for piecing and inserted into the rotor of an open-end spinning device. Upon start up, the combination yarn engages staple fibers in the rotor consolidating groove while the continuous filament yarn engages the combination yarn within the rotor without any contact of the continuous filament yarn with the rotor consolidating groove.

Automatic piecing of combination open end rotor spun yarn

A method of manufacturing a combined yarn which includes feeding staple fibers to the collection groove of an open-end spinning rotor, twisting the staple fibers into a staple fiber yarn, combining the staple fiber yarn with a continuous filament yarn which is also fed into the spinning rotor and then twisting the continuous filament yarn and the staple fiber yarn together to form a balanced ply yarn.

Fiber material is conveyed over a sieve-like surface to remove dust from material. The fiber material is thereby exposed to a suction airstream which is guided through the sieve-like surface and which is guided away from the fiber material at an acute angle which is formed opposite to the fiber transport direction. The fiber material may be aligned in parallel before it is exposed to the suction airstream. In order to orient the suction airstream at the desired acute angle relative to the fiber transport direction, the fiber material is guided over sieve orifices which are inclined at the acute angle opposite to the fiber transport direction.

Process and apparatus for eliminating dust from fiber material

Process and device for starting spinning on an open-end spinning

To improve the re-piecing operation, especially in terms of its success rate, at high spinning speeds, the free thread end cut to the length of a piecable end and retained after cutting the length is exposed to a turbulent air flow which causes it to execute whiplash-like oscillations. The surface of the thread end is thereby roughened. The thread end prepared in this way is subsequently transferred to the fiber-collecting surface of the open-end spinning apparatus. The roughening of the surface of the free thread end is accelerated when the end is whipped against an edge-like projection or a rough surface.

Process and apparatus for preparing a cut-to-length thread end for the

Growing community of inventors

Monheim, Germany

Heinz Muller