Patents by Inventor Jens-Uwe Schierholz
Jens-Uwe Schierholz 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: 20220162788Abstract: The present invention relates to a nonwoven fabric comprising continuous spunbonded bicomponent fibers which consist of: 0 to 95% by weight of an aromatic polyester (A) in a core; to 50% by weight of a polyester blend (B) containing a) 65 to 95% of an aromatic polyester (BA) and b) 5 to 35% by weight of an aliphatic-aromatic polyester (BB) with a glass temperature below 0° C. in a sheath surrounding the core; and 0 to 5% by weight of at least one additive (C); wherein the % by weight are based in each case on the total weight of the components (A) and (B) and optionally (C); and wherein the aromatic polyesters (A) and (BA) are selected from the group consisting of poly(ethylene terephthalate) and poly(butylene terephthalate).Type: ApplicationFiled: March 5, 2020Publication date: May 26, 2022Inventors: Gijsbrecht Jacobus Maria HABRAKEN, Klaus SCHEUERMANN, Gabriel SKUPIN, Jens-Uwe SCHIERHOLZ
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Publication number: 20190202087Abstract: The invention relates to a process for production of expanded foam beads of one or more polyesters based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols, comprising the steps of: (a) melting the polyester and admixing the polyester with 1 to 3.5 wt %, based on the polyester, of a carbon dioxide and/or nitrogen blowing agent and also 0.1 to 2 wt % of a nucleating agent, and pressing the nucleated polyester melt, containing blowing agent, through a perforated disk controlled to a temperature between 150° C. and 185° C. and into a pelletizing chamber, (b) using a cutting device to comminute the polymer melt pressed through the perforated disk into individual expanding pellets, (c) discharging the pellets from the pelletizing chamber into a stream of water which is at a temperature of 5 to 90° C. and a pressure of 0.1 bar to 20 bar above ambient pressure.Type: ApplicationFiled: August 1, 2017Publication date: July 4, 2019Inventors: Jerome LOHMANN, Peter GUTMANN, Bangaru Dharmapuri Sriramulu SAMPATH, Andreas KUENKEL, Juergen AHLERS, Uwe KEPPELER, Thomas HEITZ, Jens-Uwe SCHIERHOLZ
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Patent number: 9663625Abstract: The present invention relates to processes for producing melamine-formaldehyde foams, said processes comprising the steps of: a) producing an aqueous mixture M1) comprising 100 parts by weight of at least one melamine-formaldehyde precondensate, 2 to 4 parts by weight of at least one curative, 0.2 to 5 parts by weight of a surfactant mixture, 0.Type: GrantFiled: August 23, 2013Date of Patent: May 30, 2017Assignee: BASF SEInventors: Bernd Gross, Horst Baumgartl, Jens-Uwe Schierholz, Bettina Wester, Peter Wolf, Bernhard Vath, Peter Nessel, Klaus Hahn, Tobias Heinz Steinke
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Patent number: 9353232Abstract: The present invention relates to melamine-formaldehyde foams comprising hollow microspheres wherein said hollow microspheres have a median particle diameter (D50, volume averaged, Malvern, Fraunhofer diffraction) in the range from 260 ?m to 490 ?m, and also processes for producing these melamine-formaldehyde foams and their uses.Type: GrantFiled: May 15, 2012Date of Patent: May 31, 2016Assignee: BASF SEInventors: Tobias Heinz Steinke, Peter Nessel, Klaus Hahn, Horst Baumgartl, Christof Möck, Bernhard Vath, Bettina Wester, Jens-Uwe Schierholz, Dave Pung
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Patent number: 9242397Abstract: Melamine-formaldehyde foams comprise from 80% to 98% by weight of an inorganic filling material, wherein the % by weight are based on the total weight of inorganic filling material plus melamine-formaldehyde precondensate used for foam production.Type: GrantFiled: November 1, 2011Date of Patent: January 26, 2016Assignee: BASF SEInventors: Tobias Heinz Steinke, Tatiana Ulanova, Klaus Hahn, Horst Baumgartl, Christof Möck, Bernhard Vath, Peter Nessel, Jens-Uwe Schierholz, Bettina Wester, Hans-Jürgen Quadbeck-Seeger
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Publication number: 20150210814Abstract: The present invention relates to processes for producing melamine-formaldehyde foams, said processes comprising the steps of: a) producing an aqueous mixture M1) comprising 100 parts by weight of at least one melamine-formaldehyde precondensate, 2 to 4 parts by weight of at least one curative, 0.2 to 5 parts by weight of a surfactant mixture, 0.Type: ApplicationFiled: August 23, 2013Publication date: July 30, 2015Applicant: BASF SEInventors: Bernd Gross, Horst Baumgartl, Jens-Uwe Schierholz, Bettina Wester, Peter Wolf, Bernhard Vath, Peter Nessel, Klaus Hahn, Tobias Heinz Steinke
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Publication number: 20130337255Abstract: Melamine/formaldehyde foams comprising from 0.01% to 45% by weight of a particulate filling material having an average particle diameter in the range from 5 ?m to 3 mm, wherein the % by weight are based on the total weight of filling material plus melamine-formaldehyde precondensate used for foam production.Type: ApplicationFiled: February 20, 2012Publication date: December 19, 2013Applicant: BASF SEInventors: Tobias Heinz Steinke, Tatiana Ulanova, Klaus Hahn, Horst Baumgartl, Christof Möck, Bernhard Vath, Peter Nessel, Jens-Uwe Schierholz, Bettina Wester, Hans-Jürgen Quadbeck-Seeger, Dave Pung
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Patent number: 8546457Abstract: A process for production of an abrasive foam based on a melamine-formaldehyde condensate comprising inorganic nanoparticles, comprising the steps of: (1) preparation of a solution or dispersion comprising a precondensate of the foam to be produced, and also comprising inorganic nanoparticles, (2) foaming of the precondensate via heating of the solution or dispersion from step (1), in order to obtain a foam which comprises inorganic nanoparticles, and also, if appropriate, (3) heat-conditioning of the foam obtained in step (2), leads to improved abrasion in the polishing of delicate surfaces.Type: GrantFiled: August 13, 2008Date of Patent: October 1, 2013Assignee: BASF SEInventors: Armin Alteheld, Klaus Hahn, Christof Möck, Horst Baumgartl, Jens-Uwe Schierholz, Maxim Peretolchin
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Publication number: 20120292552Abstract: The present invention relates to melamine-formaldehyde foams comprising hollow microspheres wherein said hollow microspheres have a median particle diameter (D50, volume averaged, Malvern, Fraunhofer diffraction) in the range from 260 ?m to 490 ?m, and also processes for producing these melamine-formaldehyde foams and their uses.Type: ApplicationFiled: May 15, 2012Publication date: November 22, 2012Applicant: BASF SEInventors: Tobias Heinz Steinke, Peter Nessel, Klaus Hahn, Horst Baumgartl, Christof Möck, Bernhard Vath, Bettina Wester, Jens-Uwe Schierholz, Dave Pung
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Publication number: 20120112116Abstract: Melamine-formaldehyde foams comprise from 80% to 98% by weight of an inorganic filling material, wherein the % by weight are based on the total weight of inorganic filling material plus melamine-formaldehyde precondensate used for foam production.Type: ApplicationFiled: November 1, 2011Publication date: May 10, 2012Applicant: BASF SEInventors: TOBIAS HEINZ STEINKE, Tatiana Ulanova, Klaus Hahn, Horst Baumgartl, Christof Möck, Bernhard Vath, Peter Nessel, Jens-Uwe Schierholz, Bettina Wester, Hans-Jürgen Quadbeck-Seeger
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Publication number: 20120071578Abstract: The invention relates to processes for producing a melamine-formaldehyde foam comprising the consecutive steps a) and b): a) heating a mixture comprising a melamine-formaldehyde precondensate, a curative and a blowing agent to foam up and crosslink said mixture, and b) tempering the foam obtained in step a), wherein it is essential to the present invention that step a) utilizes a precondensate which has a melamine:formaldehyde molar ratio in the range from 1:2,1 to 1:3.9, and which has a sulfite group content, based on the total weight of the melamine-formaldehyde precondensate, in the range from 0% to 1% by weight, and said tempering in step b) is effected at a temperature in the range from 230 to 290° C., and also to melamine-formaldehyde foams obtainable according to the processes of the invention, and to uses thereof.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Applicant: BASF SEInventors: HORST BAUMGARTL, Bettina Wester, Jens-Uwe Schierholz
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Publication number: 20110269864Abstract: The present invention relates to a process for producing resilient compressed foamed material based on melamine-formaldehyde resins, which comprises a melamine-formaldehyde precondensate being foamed and the soft, uncured melamine-formaldehyde foamed material being compressed and subsequently dried and optionally heat treated.Type: ApplicationFiled: April 29, 2011Publication date: November 3, 2011Applicant: BASF SEInventors: Tobias Heinz STEINKE, Horst BAUMGARTL, Peter NESSEL, Klaus HAHN, Jens-Uwe SCHIERHOLZ, Bettina WESTER, Christof MÖCK, Bernhard VATH, Denis Alfred GONZALES, Geert DE LEERSNYDER
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Publication number: 20110237145Abstract: Foams and moldings comprising foamed support materials selected from the group consisting of polyurethane resins, polyester resins, epoxides and also fiber nonwovens, woven materials and open-cell, two- and three-dimensional networks composed of mineral, animal, vegetable and chemical (natural/synthetic) fibers or mixtures thereof comprising melamine/formaldehyde resins as foamable reactive resin.Type: ApplicationFiled: March 25, 2011Publication date: September 29, 2011Applicant: BASF SEInventors: TOBIAS HEINZ STEINKE, Horst Baumgartl, Klaus Hahn, Jens-Uwe Schierholz, Bettina Wester, Christof Möck, Bernhard Vath, Peter Nessel, Werner Lenz, Denis Alfred Gonzales, Geert De Leersnyder
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Publication number: 20110237699Abstract: Process for producing molded foams from melamine/formaldehyde condensation products by subjecting melamine/formaldehyde precondensates to foaming under reduced pressure and subsequent irradiation.Type: ApplicationFiled: March 23, 2011Publication date: September 29, 2011Applicant: BASF SEInventors: Tobias Heinz Steinke, Klaus Hahn, Horst Baumgartl, Jens-Uwe Schierholz, Bettina Wester, Christof Möck, Bernhard Vath, Peter Nessel
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Publication number: 20110189464Abstract: Novel melamine-formaldehyde foams comprising microcapsules built into the structure of the condensation products and also processes for the production thereof and uses thereof.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Applicant: BASF SEInventors: Tobias Heinz Steinke, Marc Rudolf Jung, Andreas Daiss, Hans-Jürgen Quadbeck-Seeger, Klaus Hahn, Horst Baumgartl, Jens-Uwe Schierholz, Bettina Wester, Christof Möck
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Publication number: 20110124754Abstract: A process for production of an abrasive foam based on a melamine-formaldehyde condensate comprising inorganic nanoparticles, comprising the steps of: (1) preparation of a solution or dispersion comprising a precondensate of the foam to be produced, and also comprising inorganic nanoparticles, (2) foaming of the precondensate via heating of the solution or dispersion from step (1), in order to obtain a foam which comprises inorganic nanoparticles, and also, if appropriate, (3) heat-conditioning of the foam obtained in step (2), leads to improved abrasion in the polishing of delicate surfaces.Type: ApplicationFiled: August 13, 2008Publication date: May 26, 2011Applicant: BASF SEInventors: Armin Alteheld, Klaus Hahn, Christof Möck, Horst Baumgartl, Jens-Uwe Schierholz, Maxim Peretolchin
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Publication number: 20100144913Abstract: The present invention concerns a process for producing a foam comprising at least one antimicrobial active, comprising the steps of: (1) preparing a solution or dispersion comprising at least one precondensate of the foam to be produced and at least one antimicrobial active, (2) foaming the precondensate by heating the solution or dispersion of step (1) to obtain a foam comprising at least one antimicrobial active, and (3) heat treating the foam obtained in step (2) at a temperature in the range from 120 to 300° C., a foam thus produced, a shaped article comprising such a foam and the use of such a foam for thermal and acoustical insulation of buildings and parts of buildings, thermal and acoustical insulation of the interiors of land, air and sea vehicles, low-temperature insulation, as an insulating wall cladding, as an insulating and shock-absorbing packaging material, as abrasive cleaning, grinding and polishing sponges, in the hygiene sector and as a filter material.Type: ApplicationFiled: March 3, 2008Publication date: June 10, 2010Applicant: BASF SEInventors: Armin Alteheld, Klaus Hahn, Christof Möck, Bernhard Vath, Jens-Uwe Schierholz
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Publication number: 20080197524Abstract: A process for the production of foams by heating with foaming and crosslinking of a mixture comprising a melamine/formaldehyde (MF) precondensate, a curing agent and a blowing agent, a formaldehyde scavenger being added prior to the heating, and foams based on melamine/formaldehyde resins having a low formaldehyde emission and the use thereof for the production of shaped articles by thermoforming.Type: ApplicationFiled: June 12, 2006Publication date: August 21, 2008Inventors: Horst Baumgartl, Jens-Uwe Schierholz