Rodewald
Dieter Rodewald, Hong Kong CN
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20090182113 | SEGMENTED POLYURETHANE ELASTOMERS WITH HIGH ELONGATION AT TEAR - The present invention relates to a process for producing a polyurethane elastomer fiber, which comprises a) reacting polymeric diol with a substance reactive therewith to form an OH-terminated prepolymer, b) reacting the OH-terminated prepolymer with a diisocyanate to form an isocyanate-terminated prepolymer, c) reacting the isocyanate-terminated prepolymer with a chain extender, if appropriate a chain-terminating agent and if appropriate further additives to form the polyurethane elastomer, and d) spinning the polyurethane elastomer to form a fiber, in which there are less than 15% by weight of further polyurethane elastomers in the fiber. The present invention further relates to a polyurethane elastomer fiber obtainable by such a process, to its use for producing textiles, for example wovens or knits, and also to the use of a polyurethane elastomer for producing such a fiber. | 07-16-2009 |
20120059143 | PREPARING POLYESTER ALCOHOLS - The subject of the present invention is a process for preparing polyester alcohols by condensation of polytetrahydrofuran with aromatic dicarboxylic acids and/or their anhydrides in the presence of a transesterification catalyst in a multi-stage operation at different pressure levels with at least one reaction stage at atmospheric pressure and at least one reaction stage at reduced pressure, where distillate is removed from the reaction system, which process comprises heating the reaction mixture in two or more phases in the atmospheric-pressure reaction stage wherein the heating phases are interrupted by at least one phase in which the temperature is kept constant. | 03-08-2012 |
Frank Rodewald, Bedburg DE
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20090086723 | METHOD FOR SETTING UP A COMMUNICATION CONNECTION AND PRIVATE BRANCH EXCHANGE FOR CARRYING OUT THE METHOD - A communication connection between a calling communications terminal and a further communications terminal, the connection setup being initiated through the exchange of an invite message and a number of acknowledgment messages between the calling communications terminal, the further communications terminal and a higher-ranking communication-management module, the connection modalities relevant for the calling communications terminal being agreed in a first connection initiation sequence between the higher-ranking communication-management module and an application-management module allocated to the calling communications terminal, and a second connection initiation sequence being provided for agreeing the connection modalities relevant for the further communications terminal between the higher-ranking communication-management module and an application-management module allocated to the further communications terminal. | 04-02-2009 |
Iise Rodewald, Hamburg DE
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20110020629 | FILM MADE OF POLYPROPYLENE, USE THEREOF, AND METHOD FOR THE PRODUCTION OF THE FILM - The invention relates to a film, in particular for an adhesive tape, characterized in that the film contains at least one homopolymer, copolymer, or terpolymer of the propylene and fibers and is monoaxially stretched in the longitudinal direction, wherein the elongation ratio is preferably at least 1:8 and particularly preferably at least 1:9.5. | 01-27-2011 |
Ilse Rodewald, Hamburg DE
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20090038754 | Tear Propogation-Resistant Adhesive Tape - Adhesive tape having a backing material applied to at least one side of which is an adhesive, in particular a pressure-sensitive adhesive, the backing material being composed of at least one film, in which the film has at least one score extending in the machine direction of the adhesive tape which extends over at least one half of the thickness of the backing material. | 02-12-2009 |
20090188791 | Biosensor and its production - Biosensor by means of which biological fluids are analysed, comprising at least the | 07-30-2009 |
20110027552 | SUPPORT FILM, IN PARTICULAR FOR AN ADHESIVE TAPE AND USE THEREOF - Support film, in particular for an adhesive tape that is stretched monoaxially in the longitudinal direction and that contains a base layer made of polypropylene and a co-extrusion layer made of polyethylene, characterized in that the tension in the longitudinal direction at 10% strain is at least 150 N/mm | 02-03-2011 |
20140377521 | SUPPORT FILM, IN PARTICULAR FOR AN ADHESIVE TAPE AND USE THEREOF - Support film, in particular for an adhesive tape that is stretched monoaxially in the longitudinal direction and that contains a base layer made of polypropylene and a co-extrusion layer made of polyethylene, characterized in that the tension in the longitudinal direction at 10% strain is at least 150 N/mm | 12-25-2014 |
Ilse Rodewald, Munster DE
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20150284599 | ADHESIVE TAPE - The invention relates to an adhesive tape with a carrier composed of a film, there being applied on one side of the carrier an adhesive based on natural rubber or synthetic rubber, where the film is a biaxially oriented film made of polypropylene, polyethylene or polyester such as PET, and on the side of the carrier not coated with adhesive there is a release layer, based in particular on carbamate. | 10-08-2015 |
Peter Rodewald, Maassluis NL
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20150373917 | WRAPPING MATERIAL FEEDING DEVICE AND METHOD WITH CLEANING FUNCTION - A feeding apparatus and a feeding method are disclosed. The apparatus and the method feed wrapping material towards an inlet of a chamber. An object in this chamber is to be wrapped with wrapping material injected into the chamber. A wrapping material supplying unit supplies wrapping material from a reservoir towards the inlet such that a loose end area is formed. A drive drives a conveying surface of a wrapping material feeding unit either in a feeding direction or in a cleaning direction. If moved in the feeding direction, the conveying surface conveys the loose end area towards the inlet. If moved in the cleaning direction, the conveying surface cleans the inlet from debris. | 12-31-2015 |
Stefan Rodewald, Ditzingen DE
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20080289961 | Sensor Element - A sensor element for determining the oxygen concentration in an exhaust gas has a conductor track applied to a solid electrolyte, which includes an electrode provided in a measuring area of the sensor element and an electrode lead connected to the electrode and situated in the lead area of the sensor element. In a transition area between the measuring area and the lead area, the conductor track has a narrowing. Furthermore, the electrode includes a first electrode section and a second electrode section, the first electrode section being connected to the electrode lead in a transition area between the measuring area and the lead area, and the first and second electrode sections being electrically connected to one another only on their sides facing away from the lead area. | 11-27-2008 |
Stefan Rodewald, Yokohama JP
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20090217737 | Sensor Element for Gas Sensors and Method for Operating Same - A sensor element is provided for gas sensors, in particular to determine particles in gas mixtures, the sensor element including at least one electrochemical measuring element exposed to the gas mixture to be determined, and at least one temperature-measuring element integrated into the sensor element. The temperature-measuring element includes a resistor track, which has an electric resistance of less than 180 Ohm at 0° C. The resistor track may thus be produced by thin-foil technology, such as screen printing, for example. | 09-03-2009 |
Werner Rodewald, Grundau DE
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20110171056 | Powders for Rare Earth Magnets, Rare Earth Magnets and Methods for Manufacturing the Same - A powder consists essentially by weight, of 28.00≦R≦32.00%, where R is at least one rare earth element including Y and the sum of Dy+Tb>0.5, 0.50≦B≦2.00%, 0.50≦Co≦3.50%, 0.050≦M≦0.5%, where M is one or more of the elements Ga, Cu and Al, 0.25 wt %07-14-2011 | |