Patents by Inventor Hans-Josef Behrens
Hans-Josef Behrens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050288417Abstract: The invention relates to elastic fibers of polyurethaneurea, which are not discoloured by operating steps required to produce loop-formingly knitted fabrics or textiles, for example heat setting or moulding, and can be used in aqueous chlorinated environments, such as swimming pools for example, for swimwear, and to a process for their production. The polyurethaneurea fibers contain hydrotalcites coated with dialkyl sulphosuccinates.Type: ApplicationFiled: June 13, 2005Publication date: December 29, 2005Applicant: Dorlastan Fibers GmbHInventors: Stephan Hutte, Hans-Josef Behrens, Darius Naroska
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Patent number: 6950587Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a process for producing the inventive fibers and their use for transmitting optical signals.Type: GrantFiled: November 14, 2001Date of Patent: September 27, 2005Assignee: Bayer AktiengesellschaftInventors: Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Wolfgang Ebert, Hans-Josef Behrens, Wilfried Haese, Thomas Föllinger, Heinz-Dieter Brandt
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Publication number: 20050192425Abstract: Optical fibers suitable for transmission of optical signals and comprising a core that contains polycarbonate are disclosed. The polycarbonate is characterized in its low content of insoluble particles.Type: ApplicationFiled: April 12, 2005Publication date: September 1, 2005Inventors: Wolfgang Ebert, Hans-Josef Behrens, Heinz-Dieter Brandt, Martina Brandt, Franziska Brandt, Inken Brandt, Thomas Follinger, Wilfried Haese
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Patent number: 6907174Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a method for preparing the inventive fibers and the use thereof for transmitting signals.Type: GrantFiled: September 19, 2001Date of Patent: June 14, 2005Assignee: Bayer AktiengesellschaftInventors: Wolfgang Ebert, Hans-Josef Behrens, Inken Margarethe Brandt, Thomas Föllinger, Martina Brandt, Franziska Hanne Brandt, Heinz-Dieter Brandt, Wilfried Haese
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Publication number: 20050038138Abstract: Chlorine-resistant elastic polyurethane urea fibers containing hydrotalcites coated with metal fatty acid salts which are useful in aqueous, chlorine-containing environments, such as for swimming pool liners, and process for their production.Type: ApplicationFiled: January 20, 2004Publication date: February 17, 2005Applicant: Bayer Faser GmbHInventors: Stephan Hutte, Hans-Josef Behrens, Hans-Peter Baldus, Holger Drews
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Publication number: 20040151456Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a process for producing the inventive fibers and their use for transmitting optical signals.Type: ApplicationFiled: October 9, 2003Publication date: August 5, 2004Inventors: Heinz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Wolfgang Bert, Hans-Josef Behrens, Wilfried Haese, Thomas Follinger
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Publication number: 20040120686Abstract: A process for producing optical fibers is disclosed. The fibers that are characterized in having a core that contain an amorphous transparent thermoplastic polymer are prepared by a process entailing melting the polymer in an apparatus the surfaces of which that come into contact with the molten polymer are first rendered at least partially inert.Type: ApplicationFiled: August 27, 2003Publication date: June 24, 2004Inventors: Hans-Josef Behrens, Ebert Wolfgang, Thomas Follinger, Wolfgang Alewelt, Heniz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt
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Publication number: 20040057694Abstract: The invention relates to optical fibres comprising a core that contains a polycarbonate and a coating that consists of special polyacrylates or polymethacrylates and stabilizers. The invention also relates to a method for producing said optical fibres, to the use of the optical fibres for transmitting optical signals in means of transport and to means of transport containing said optical fibres. The stabilizers are selected from the group consisting of organic phosphites and organic sulphides.Type: ApplicationFiled: August 25, 2003Publication date: March 25, 2004Inventors: Wolfgang Ebert, Hans-Josef Behrens, Heinz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Thomas Follinger, Wilfried Haese
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Publication number: 20040057693Abstract: Optical fibers suitable for transmission of optical signals and comprising a core that contains polycarbonate are disclosed. The polycarbonate is characterized in its low content of insoluble particles.Type: ApplicationFiled: July 14, 2003Publication date: March 25, 2004Inventors: Wolfgang Ebert, Hans-Josef Behrens, Heniz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Thomas Follinger, Wilfried Haese
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Patent number: 6562456Abstract: An elastane multifilament yarn havig two to six individual filaments which, when being unwound from a bobbin, is splittable into individual filaments, is produced by a process wherein multihole spinning jets are deployed in the spinning head of a conventional dry spinning apparatus, laminarizing the spinning gas flow to prevent entanglement of the individual filaments and passing the resulting yarn through a thread guide with one opening per individual filament.Type: GrantFiled: October 29, 1997Date of Patent: May 13, 2003Assignee: Bayer Faser GmbHInventors: Ben Bruner, James F. Heslep, Hans-Josef Behrens, Konrad Schmitz, Karlheinz Wolf
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Patent number: 6391953Abstract: The invention relates to a coating compound for fibers and to a process for the production thereof The invention relates in particular to a preparation agent for elastanes, based on a dispersion of fatty-acid metal salts and an agglomeration inhibitor in polyorganosiloxanes and mineral oils. The preparations are produced by a precipitation process from which fined-particle and sedimentation-stable dispersions with a narrow particle size distribution are obtained which are free from agglomerates.Type: GrantFiled: February 5, 1999Date of Patent: May 21, 2002Assignees: Bayer Aktiengesellschaft, Bayer Faser GmbHInventors: Stephan Hütte, Bernd Klinksiek, Andreas Endesfelder, Hans-Joachim Wollweber, Hans-Josef Behrens
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Patent number: 5723080Abstract: An improved dry spinning process for manufacturing splittable elastane multifilament yarns wherein the coalescence of individual filaments is prevented, through the use of multihole spinning jets, laminarizing gas flow and thread guides having one opening per individual fiber.Type: GrantFiled: May 16, 1996Date of Patent: March 3, 1998Assignee: Bayer Faser GmbHInventors: Ben Bruner, James F. Heslep, Hans-Josef Behrens, Konrad Schmitz, Karlheinz Wolf
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Patent number: 5565270Abstract: The invention relates to a process for the solventless production of elastic filaments based on segmented poly(urethane)s or poly(urethane urea)s having improved thermal properties and, hence, improved processing behavior, for example during the heat setting of fabrics containing the elastic fibers, by the use of a polyisocyanate containing isocyanurate groups in the reaction of long-chain, relatively high molecular weight polyhydroxyl compounds with organic diisocyanates and low molecular weight diols and, optionally, other auxiliaries and additives in the melt, direct spinning of the reaction mixture thus obtained and thermal aftertreatment of the elastic filaments obtained and also to the filaments obtainable by this process.Type: GrantFiled: April 18, 1995Date of Patent: October 15, 1996Assignee: Bayer AktiengesellschaftInventors: Bodo Rehbold, Hans-Josef Behrens, Erich Haug, G unter Spilgies, Rolf-Volker Meyer, Hanns-Peter M uller
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Patent number: 4431602Abstract: In order to conduct thoroughly pre-mixed hot gas into a ring spinning nozzle by a rotational flow in such a manner that sufficient quantities of hot gas are available for drying the filaments situated on the inside without causing backflow and without any significant movement of the filaments by turbulence, an annular chamber with tangential inlet is placed around the ring spinning nozzle. The internal wall of the chamber is separated from a circular chamber by equalizers in its upper region while on its underside it is separated from the spinning chamber by equalizers and metal gauzes at the level of the lower edge of the spinning nozzle. The circular chamber is also separated on its underside from the spinning chamber by equalizers and metal gauzes.Type: GrantFiled: September 29, 1982Date of Patent: February 14, 1984Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Behrens, Heiko Herold, Edgar Muschelknautz, Roland Vogelsgesang