Patents by Inventor Christian Schwede
Christian Schwede 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).
-
Patent number: 10488036Abstract: Presented herein is an optical filter system for visible light, which has a first average transmittance T1 between a limit wavelength ?G and a wavelength of 700 nm and a second average transmittance T2 between a wavelength of 380 nm and the limit wavelength ?G. In this case: 410 nm<?G<520 nm and 0.05 < T 1 T 2 < 0.60 .Type: GrantFiled: May 11, 2017Date of Patent: November 26, 2019Assignee: CARL ZEISS MEDITEC AGInventors: Marco Wilzbach, Tomas Lang, Christian Schwedes, Carl Kübler, Peter Gangler
-
Publication number: 20170328556Abstract: Presented herein is an optical filter system for visible light, which has a first average transmittance T1 between a limit wavelength ?G and a wavelength of 700 nm and a second average transmittance T2 between a wavelength of 380 nm and the limit wavelength ?G. In this case: 410 nm<?G<520 nm and 0.05 < T 1 T 2 < 0.60 .Type: ApplicationFiled: May 11, 2017Publication date: November 16, 2017Inventors: Marco Wilzbach, Tomas Lang, Christian Schwedes, Carl Kübler, Peter Gängler
-
Patent number: 9481742Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.Type: GrantFiled: April 7, 2014Date of Patent: November 1, 2016Assignee: BASF SEInventors: Christian Schade, Faissal-Ali El-Toufaili, Aaron Flores-Figueroa, Gledison Fonseca, Michaela Heuβler, Christian Schwede, Helmut Witteler
-
Publication number: 20160075801Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.Type: ApplicationFiled: April 7, 2014Publication date: March 17, 2016Applicant: BASF SEInventors: Christian SCHADE, Faissal-Ali EL-TOUFAILI, Aaron FLORES-FIGUEROA, Gledison FONSECA, Michaela HEUßLER, Christian SCHWEDE, Helmut WITTELER
-
Patent number: 9284395Abstract: The present invention relates to a process for the continuous preparation of polymers in a polymerization apparatus, where the starting materials comprise at least one olefinically unsaturated polyether macromonomer and at least one olefinically unsaturated acid monomer and at least one free-radical initiator and the polymerization is carried out at temperatures in the range from ?20 to +120° C., wherein the polymerization apparatus comprises at least one loop reactor which has at least one feed line for the starting materials and at least one outlet, where the loop reactor comprises at least one reaction zone which comprises internal cooling and mixing elements and which has a volume-based heat removal power of at least 10 kW/m3·K. Furthermore, the use of the polymer of the invention as dispersant for hydraulic binders is disclosed.Type: GrantFiled: December 9, 2013Date of Patent: March 15, 2016Assignee: Construction Research & Technology GmbHInventors: Christian Schwede, Günter Kaiser, Andreas Brodhagen, Mario Vierle
-
Publication number: 20150315318Abstract: The present invention relates to a process for the continuous preparation of polymers in a polymerization apparatus, where the starting materials comprise at least one olefinically unsaturated polyether macromonomer and at least one olefinically unsaturated acid monomer and at least one free-radical initiator and the polymerization is carried out at temperatures in the range from ?20 to +120° C., wherein the polymerization apparatus comprises at least one loop reactor which has at least one feed line for the starting materials and at least one outlet, where the loop reactor comprises at least one reaction zone which comprises internal cooling and mixing elements and which has a volume-based heat removal power of at least 10 kW/m3·K. Furthermore, the use of the polymer of the invention as dispersant for hydraulic binders is disclosed.Type: ApplicationFiled: December 9, 2013Publication date: November 5, 2015Inventors: Christian SCHWEDE, Günter KAISER, Andreas BRODHAGEN, Mario VIERLE
-
Patent number: 9068023Abstract: The invention relates to a continuous process for the preparation of amphiphilic graft polymers, wherein a vinyl ester component (B) composed of vinyl acetate and/or vinyl propionate (B1) and, if desired, a further ethylenically unsaturated monomer (B2), is polymerized in the presence of a polyalkylene oxide (A), a free radical-forming initiator (C) and, if desired, an additive (D), at a mean polymerization temperature at which the initiator (C) has a decomposition half-time of from 1 to 500 min, in at least one tubular reactor segment with a feed side and an outlet side, through which the reaction mixture comprising at least a part of component (A) to (C), and if desired (D), streams, a tubular reactor segment and the use of the inventive amphiphilic graft polymer. The invention further relates to an inventive amphiphilic graft polymer and the use thereof.Type: GrantFiled: March 7, 2013Date of Patent: June 30, 2015Assignee: BASF SEInventors: Faissal-Ali El-Toufaili, Michaela Heussler, Christian Schwede, Aaron Flores-Figueroa, Rainer Dobrawa, Dieter Boeckh, Wolfgang Loth, Gerd Konrad
-
Publication number: 20140340501Abstract: A microscope comprises an imaging system comprising an objective having an objective lens and producing a magnified image of a focal plane of the imaging system, an image sensor disposed in the focal plane and outputting an electrical signal to the controller, and a display communicating with the controller. The controller converts signals of the image sensor into digital single images of the object, outputs the same to the display, detects a displacement of the microscope transverse to an optical axis of the objective lens relative to an object imaged, and compares the displacement with a threshold. If the displacement exceeds the threshold the controller controls a zoom system such that a total magnification is inverse monotone to a relative velocity between the microscope and the object, and/or stores the digital single images, composes them into a total image, and outputs the same to the display.Type: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Applicant: Carl Zeiss Meditec AGInventors: Christoph HAUGER, Christian SCHWEDES
-
Patent number: 8648158Abstract: The invention relates to a process for the preparation of copolymer in a continuous mode of operation in a polymerization apparatus, comprising a polymerization reactor having feed lines and an outflow, free radical polymerization initiator, an acid monomer and polyether macromonomer being passed as monomeric starting materials into the polymerization reactor through the feed lines, initiator, monomeric starting materials and copolymer-containing reaction composition thermostated at ?20 to +120° C.Type: GrantFiled: January 12, 2009Date of Patent: February 11, 2014Assignee: Construction Research & Technology GmbHInventors: Christian Schwede, Mario Vierle, Timo Mangel, Gerhard Albrecht, Volker Herzog, Klaus Arlt
-
Publication number: 20130253089Abstract: The invention relates to a continuous process for the preparation of amphiphilic graft polymers, wherein a vinyl ester component (B) composed of vinyl acetate and/or vinyl propionate (B1) and, if desired, a further ethylenically unsaturated monomer (B2), is polymerized in the presence of a polyalkylene oxide (A), a free radical-forming initiator (C) and, if desired, an additive (D), at a mean polymerization temperature at which the initiator (C) has a decomposition half-time of from 1 to 500 min, in at least one tubular reactor segment with a feed side and an outlet side, through which the reaction mixture comprising at least a part of component (A) to (C), and if desired (D), streams, a tubular reactor segment and the use of the inventive amphiphilic graft polymer. The invention further relates to an inventive amphiphilic graft polymer and the use thereof.Type: ApplicationFiled: March 7, 2013Publication date: September 26, 2013Applicant: BASF SEInventors: Faissal-Ali El-Toufaili, Michaela Heussler, Christian Schwede, Aaron Flores-Figueroa, Rainer Dobrawa, Dieter Boeckh, Wolfgang Loth, Gerd Konrad
-
Publication number: 20120059091Abstract: The invention relates to a process for the preparation of copolymer in a continuous mode of operation in a polymerization apparatus, comprising a polymerization reactor having feed lines and an outflow, free radical polymerization initiator, an acid monomer and polyether macromonomer being passed as monomeric starting materials into the polymerization reactor through the feed lines, initiator, monomeric starting materials and copolymer-containing reaction composition thermostated at ?20 to +120° C.Type: ApplicationFiled: January 12, 2009Publication date: March 8, 2012Inventors: Christian Schwede, Timo Mangel, Gerhard Alberecht, Volker Herzog, Klaus Arlt
-
Publication number: 20110190422Abstract: The invention relates to a process for the preparation of copolymer in a continuous mode of operation in a polymerization apparatus, comprising a polymerization reactor having feed lines and an outflow, free radical polymerization initiator, an acid monomer and polyether macromonomer being passed as monomeric starting materials into the polymerization reactor through the feed lines, initiator, monomeric starting materials and copolymer-containing reaction composition thermostated at ?20 to +120° C.Type: ApplicationFiled: January 12, 2009Publication date: August 4, 2011Inventors: Christian Schwede, Timo Mangel, Gerhard Alberecht, Volker Herzog, Klaus Arlt
-
Patent number: 6828363Abstract: The invention relates to a method of preparation for polymers, particularly binders for powder coatings and powder coatings which are prepared as a solution in a supercritical fluid phase. Binders for powder coatings are prepared from at least two ethylenically unsaturated monomers capable of free-radical or ionic copolymerization, and conventional initiators and regulators in supercritical fluids, whereby polymerization is carried out in the homogeneous phase, and, after the reaction has ended, either the composition or the phase parameters of the mixture are altered so that at least two phases with supercritical fluid are obtained, and the phase containing predominantly polymer is separated and the polymer is separated as a powder from the sc fluid by depressurization or the polymer phase is further processed under supercritical phase conditions to the powder coating.Type: GrantFiled: August 23, 2001Date of Patent: December 7, 2004Assignee: E.I. du Pont de Nemours and COmpanyInventors: Sabine Beuermann, Michael Buback, Michael Juergens, Eckhard Weidner, Marcus Petermann, Christian Schwede, Peter Klostermann
-
Publication number: 20020052456Abstract: The invention relates to a method of preparation for polymers, particularly binders for powder coatings and powder coatings which are prepared as a solution in a supercritical fluid phase. Binders for powder coatings are prepared from at least two ethylenically unsaturated monomers capable of free-radical or ionic copolymerization, and conventional initiators and regulators in supercritical fluids, whereby polymerization is carried out in the homogeneous phase, and, after the reaction has ended, either the composition or the phase parameters of the mixture are altered so that at least two phases with supercritical fluid are obtained, and the phase containing predominantly polymer is separated and the polymer is separated as a powder from the sc fluid by depressurization or the polymer phase is further processed under supercritical phase conditions to the powder coating.Type: ApplicationFiled: August 23, 2001Publication date: May 2, 2002Inventors: Sabine Beuermann, Michael Buback, Michael Juergens, Eckhard Weidner, Marcus Petermann, Christian Schwede, Peter Klostermann
-
Patent number: 6150486Abstract: Process for the production of glycidyl (meth)acrylate copolymers with a number-average molar mass (Mn) of 1000 to 6000 g/mol by solvent-free, continuous copolymerisation of glycidyl (meth)acrylate with ethylenically unsaturated monomers, in a reaction vessel with feed and discharge means in the presence of a polyester oligomer, wherein polyester oligomer or a mixture of glycidyl (meth)acrylate copolymer and polyester oligomer is initially introduced in a weight ratio of from 95:5 to 50:50 and the glycidyl (meth)acrylates, further monomers, further polyester oligomer and, optionally, free-radical initiators are added, the addition together with discharge of the copolymers formed being effected in such a way that the residence time required for formation of the desired composition is achieved, and wherein, in the event of the initial introduction of the mixture of glycidyl (meth)acrylate copolymer and polyester oligomer, addition is effected in such a way that the ratio between copolymer and oligomer is maintaiType: GrantFiled: October 18, 1999Date of Patent: November 21, 2000Assignee: Herberts GmbHInventors: Christian Schwede, Walter Schubert, Carmen Flosbach, Friedhelm Bandermann, Aurel Wolf