Patents by Inventor Achim Löffler

Achim Löffler 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).

  • Publication number: 20220372699
    Abstract: The present invention relates to a process for producing dyed mixed fibres (D-MF), dyed mixed fibre yarns (D-MY) and/or dyed mixed fibre textile fabrics (D-MT) in which mixed fibres (MF), mixed fibre yarns (MY) and/or mixed fibre textile fabrics (MT) comprising at least one polyester fibre (PF) and at least one further fibre (FF) are simultaneously contacted with at least two different dyes (D1) and (D2) at a temperature TD<130° C. The at least one polyester fibre (PF) comprises 80 to 99.5% by weight of at least one terephthalate polyester (A), 0.5 to 20% by weight of at least one aliphatic-aromatic polyester (B) 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 components (A), (B) and optionally (C). Moreover, the present invention relates to the dyed mixed fibres (D-MF), the dyed mixed fibre yarns (D-MY) and/or the dyed mixed fibre textile fabrics (D-MT) obtained by this process.
    Type: Application
    Filed: September 17, 2020
    Publication date: November 24, 2022
    Inventors: Gijsbrecht Jacobus Maria HABRAKEN, Klaus SCHEUERMANN, Achim LOEFFLER
  • Patent number: 10370479
    Abstract: This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: August 6, 2019
    Assignee: BASF SE
    Inventors: Christian Koenig, Dejan Petrovic, Achim Loeffler, Andreas Bauder, Daniel Freidank, Dirk Opfermann, Isa Alexandra Queiroz Da Fonseca, Caroline Mages-Sauter, Chuan Long Fu, Shu Kui Wang
  • Publication number: 20170044297
    Abstract: This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications.
    Type: Application
    Filed: April 20, 2015
    Publication date: February 16, 2017
    Applicant: BASF SE
    Inventors: Christian KOENIG, Dejan PETROVIC, Achim LOEFFLER, Andreas BAUDER, Daniel FREIDANK, Dirk OPFERMANN, Isa Alexandra QUEIROZ DA FONSECA, Caroline MAGES-SAUTER, Chuan Long FU, Shu Kui WANG
  • Patent number: 9512266
    Abstract: The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: December 6, 2016
    Assignee: BASF SE
    Inventors: Kerstin Wiss, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Lothar Riebel, Michael Limbach, Ronald Lindner, Michael Ludwik Lejkowski, Julia Frauke Grosse-Willerich
  • Patent number: 9234066
    Abstract: The present invention relates to a dispersion comprising (i) at least one liquid polymer and (ii) at least one polymer particle mixture comprising at least one meltable solid and at least one copolymer (C), wherein said at least one copolymer (C) is a random copolymer synthesized from at least one ?,?-ethylenically unsaturated monomer and at least one polymerizable polymer of the class of liquid polymers according to (i), to processes for preparing this dispersion, to the use of this dispersion to prepare polyurethanes, and to a process for preparing polyurethanes, in which at least one such dispersion is reacted with at least one polyisocyanate.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: January 12, 2016
    Assignee: BASF SE
    Inventors: Daniel Freidank, Andreas Emge, Sonja Judat, Robert Engel, Ingrid Martin, Thomas Danner, Achim Loeffler, Stephan Hess
  • Publication number: 20150361654
    Abstract: A structural element with a controllable heat transfer coefficient comprises a frame. A first sheet and a second sheet opposite one another are arranged in the frame. The sheets and the frame have the effect of defining a closed-off volume which is filled with at least one gas. At least one two-dimensional element is arranged between the sheets. An upper intermediate space is formed between the two-dimensional element and the frame vertically upwardly and a lower intermediate space is formed between the two-dimensional element in the frame vertically downwardly. A first cavity is between the first sheet and the two-dimensional element. A second cavity is between the two-dimensional element and the second sheet. The cavities are connected via the upper intermediate space and the lower intermediate space such that a convection flows between the cavities via the intermediate spaces. At least one means arranged in the intermediate spaces controls the convection flow.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 17, 2015
    Applicants: BASF SE, Fraunhofer-Institut (ISE) für Solare Energiesystem
    Inventors: Nikolaus NESTLE, Andreas DAIß, Klaus HAHN, Ralf NÖRENBERG, Johann Martin SZEIFERT, Elena KHAZOVA, Achim LÖFFLER, Tilmann KUHN, Christoph MAURER, Thibault PFLUG, Jan WIENOLD, Andre GLÜCK
  • Patent number: 9156761
    Abstract: The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: October 13, 2015
    Assignee: BASF SE
    Inventors: Kerstin Wiss, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Michael Limbach, Ronald Lindner, Severine Lavy, Michael Ludwik Lejkowski
  • Patent number: 9120731
    Abstract: What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (1), which is characterized in that the reaction unit (1) has internals (2) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 ?m, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a result
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: September 1, 2015
    Assignee: BASF SE
    Inventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
  • Patent number: 9115246
    Abstract: The present invention relates to a process for preparing polyether polyols, in which at least one hydroxyl-comprising fatty acid ester and/or at least one hydroxyl-modified fatty acid ester is reacted with the aid of a double metal cyanide catalyst in at least two process sections with in each case a mixture of ethylene oxide and at least one further alkylene oxide different from ethylene oxide.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 25, 2015
    Assignee: BASF SE
    Inventors: Andreas Kunst, Berend Eling, Achim Loeffler, Heinz-Dieter Lutter, Wei Han, Jens Mueller
  • Patent number: 9114380
    Abstract: The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 25, 2015
    Assignee: BASF SE
    Inventors: Igor Shishkov, Sirus Zarbakhsh, Ronald Adelmann, Wolfgang Rohde, Achim Loeffler
  • Patent number: 9109077
    Abstract: The present invention relates to foamed polyurethane obtainable by mixing a) polyisocyanates, b) relatively high molecular weight compounds having groups reactive toward isocyanate groups, c) solid particles, d) blowing agents, e) if appropriate, chain extender, crosslinking agent or mixtures thereof, f) if appropriate, catalyst and g) if appropriate, other additives to give a reaction mixture and allowing the reaction mixture to react to completion, the propotion of chain extender being less than 6% by weight, based on the total weight of the components a) to f), the content of solid particles being greater than 15% by weight, based on the total weight of the components a) to f), and the average functionality of the relatively high molecular weight compounds having groups reactive toward isocyanate groups being less 2.5.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: August 18, 2015
    Assignee: BASF SE
    Inventors: Nils Mohmeyer, Daniel Freidank, Sibylle Schoeps, Andreas Emge, Achim Loeffler, Marco Ortalda
  • Publication number: 20150197599
    Abstract: The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 16, 2015
    Applicant: BASF SE
    Inventors: Kerstin WISS, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Lothar Riebel, Michael Limbach, Ronald Lindner, Michael Ludwik Lejkowski, Julia Frauke Grosse-Willerich
  • Patent number: 9056945
    Abstract: The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: June 16, 2015
    Assignee: BASF SE
    Inventors: Kerstin Wiss, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Lothar Riebel, Michael Limbach, Ronald Lindner, Michael Ludwik Lejkowski, Julia Frauke Grosse
  • Patent number: 9018345
    Abstract: Disclosed is a process for the preparation of polyetherester polyols prepared with hybrid catalysts, the polyetheresters obtained from the process and the use of such materials in polyurethane applications. The hybrid catalysts used in this invention comprise double metal cyanide complex catalysts (DMC) and at least one co-catalyst.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: April 28, 2015
    Assignee: BASF SE
    Inventors: Andreas Kunst, Berend Eling, Achim Loeffler, Xinkui Wang, Ning Ying, Hui Du, Maoqing Kang
  • Publication number: 20140135419
    Abstract: A composition obtained by the following steps (i) furnishing a composition (C) comprising an emulsion polymer (a) and thereafter (ii) adding to said composition (C) a composition comprising a water-soluble polymer (b) comprising ether groups, wherein said water-soluble polymer (b) does not comprise carboxylate groups and, said water-soluble polymer (b) has a solubility in water of at least 50 g/l. A method of making a such a composition and the use of such for water based coatings or inks is described. A composition comprising (i) an emulsion polymer (a) comprising carboxylate groups, and (ii) a water-soluble random or block copolymer of ethylene oxide and propylene oxide having an ethylene oxide content of at least 45 weight-% with respect to the amount of the copolymer of ethylene oxide and propylene oxide and having a weight average molecular weight of from 300 to 4000 g/mol is also disclosed.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 15, 2014
    Applicant: BASF SE
    Inventors: Cedric DU FRESNE VON HOHENESCHE, Bernd RECK, Achim LOEFFLER, Steven ZIJLSTRA, Arjan Thomas TERMATEN
  • Patent number: 8664427
    Abstract: The invention relates to a process for preparing hyperbranched polyhydroxybenzoic acid alkoxylates, comprising the steps of: (a) reacting at least one polyhydroxybenzoic ester with one or more alkylene oxides, optionally in the presence of a basic catalyst, (b) allowing the polyhydroxybenzoic ester alkoxylates formed in step (a) to react with transesterification to form hyperbranched polyhydroxybenzoic acid alkoxylates.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 4, 2014
    Assignee: BASF SE
    Inventors: Daniel Schoenfelder, Bernd Bruchmann, Anna Cristadoro, Achim Loeffler, Matthias Schopohl, Andreas Kunst
  • Publication number: 20130274526
    Abstract: The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 17, 2013
    Inventors: Kerstin WISS, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Michael Limbach, Ronald Lindner, Severine Lavy, Michael Ludwik Lejkowski
  • Publication number: 20130261206
    Abstract: The present invention relates to a process for the continuous production of polyether alcohols by catalyzed addition of at least one alkylene oxide to at least one hydrogen-functional starter compound, wherein at least one catalyst exhibits the structural element R1/R2C=N?R3.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: BASF SE
    Inventors: Vinit CHILEKAR, Kerstin WISS, Julia Frauke GROSSE, Peter DEGLMANN, Achim LOEFFLER
  • Publication number: 20130253164
    Abstract: The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.
    Type: Application
    Filed: March 26, 2013
    Publication date: September 26, 2013
    Applicant: BASF SE
    Inventors: Kerstin Wiss, Sirus Zarbakhsh, Achim Loeffler, Peter Deglmann, Lothar Riebel, Michael Limbach, Ronald Lindner, Michael Ludwik Lejkowski, Julia Frauke Grosse
  • Patent number: D944387
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 22, 2022
    Assignee: ebm-papst St. Georgen GmbH & Co. KG
    Inventors: Norbert Weisser, Arnold Kuner, Volker Mauch, Marcel Paffendorf, Stefan Mayer, Tobias Brucker, Fabian Moser, Achim Löffler