Patents by Inventor Sebastian Steffen

Sebastian Steffen 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: 20240101783
    Abstract: The present invention relates to a process for recovering raw materials from a polyurethane foam, comprising step (A), the providing of a polyurethane foam based on an isocyanate component and a polyol component, wherein the polyurethane foam comprises a cell structure containing one or more volatile accompanying substances, namely a component X selected from the group consisting of oxygen, a blowing agent, a disinfectant and a mixture of two or more of the above, wherein component X comprises at least oxygen, step (B), the chemolysis of the polyurethane foam with a chemolysis reagent, wherein the polyurethane foam is degassed before being contacted with the chemolysis reagent, wherein at least oxygen, but preferably all constituents of component X or any gaseous breakdown products thereof that have formed are removed from the chemolysis apparatus in gaseous form via a gas removal device at a pressure of not more than 960 mbar(abs.) and a temperature of not more than 120° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 28, 2024
    Inventors: Sebastian Pohl, Friedhelm Steffens
  • Publication number: 20220237635
    Abstract: Obtain, as input, in electronic form, structured information including tasks for a plurality of occupations in a plurality of industries over a length of time; compute, from the structured information, a time series of normalized occupation task shares over the length of time; train a computerized machine learning model, on the time series, to predict future task shares for the plurality of occupations in the plurality of industries; and, with the trained computerized machine learning model, predict the future task shares.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Inventors: Subhro Das, Wyatt Clarke, Sebastian Steffen, Prabhat Maddikunta Reddy, Erik Brynjolfsson, Martin Fleming
  • Patent number: 10273330
    Abstract: The present invention relates to unsaturated carboxylic acid ester obtained from or through the use of a source material defined below in formula (I): A(0.9-1.2)(B+C)(1.0)??(I) wherein the figures set in parentheses indicate the molar proportion of source material A to the sum of source materials B and C, and wherein the following meanings apply: A: unsaturated dicarboxylic acid, B: a hard diol segment, C: a soft diol segment selected from among compounds having a continuous chain between two hydroxyl groups, which have a length of 5 to 30 atoms, wherein the molar ratio of B:C is between 5:95 and 95:5. Furthermore, it relates to unsaturated polyester resin comprising said unsaturated carboxylic acid ester as defined above and a reactive diluents as well as molded articles, coatings, and surface textiles coated, saturated, laminated, and impregnated from or with a thermoset, which was obtained by hardening said unsaturated polyester resin.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: April 30, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Reinhard Lorenz, Monika Bauer, Sebastian Steffen
  • Patent number: 9080066
    Abstract: The invention relates to a wood substrate rendered flame-retardant. The invention provides that on the substrate there is a coating and/or impregnation system with a flame retardant selected from the group consisting of room-temperature-liquid organic halogen compounds and organic phosphorus compounds and organic boron compounds, and that there is also a layer of coating material applied thereto.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 14, 2015
    Assignee: LUFTHANSA TECHNIK AG
    Inventors: Mathias Nolte, Monika Bauer, Sebastian Steffen, Bettina Gajetzki, Nina Schneider, Thomas Palm
  • Publication number: 20150175741
    Abstract: The present invention relates to unsaturated carboxylic acid ester obtained from or through the use of a source material defined below in formula (I): A(0.9-1.2)(B+C)(1.0)??(I) wherein the figures set in parentheses indicate the molar proportion of source material A to the sum of source materials B and C, and wherein the following meanings apply: A: unsaturated dicarboxylic acid, B: a hard diol segment, C: a soft diol segment selected from among compounds having a continuous chain between two hydroxyl groups, which have a length of 5 to 30 atoms, wherein the molar ratio of B:C is between 5:95 and 95:5. Furthermore, it relates to unsaturated polyester resin comprising said unsaturated carboxylic acid ester as defined above and a reactive diluents as well as molded articles, coatings, and surface textiles coated, saturated, laminated, and impregnated from or with a thermoset, which was obtained by hardening said unsaturated polyester resin.
    Type: Application
    Filed: June 19, 2013
    Publication date: June 25, 2015
    Inventors: Reinhard Lorenz, Monika Bauer, Sebastian Steffen
  • Publication number: 20140234632
    Abstract: The invention relates to a wood substrate rendered flame-retardant. The invention provides that on the substrate there is a coating and/or impregnation system with a flame retardant selected from the group consisting of room-temperature-liquid organic halogen compounds and organic phosphorus compounds and organic boron compounds, and that there is also a layer of coating material applied thereto.
    Type: Application
    Filed: July 26, 2013
    Publication date: August 21, 2014
    Applicant: Lufthansa Technik AG
    Inventors: Mathias Nolte, Monika Bauer, Sebastian Steffen, Bettina Gajetzki, Nina Schneider, Thomas Palm
  • Publication number: 20130338309
    Abstract: The invention relates to an unsaturated polyester resin containing a polyester or a polyester mixture, produced from at least one unsaturated dicarboxylic acid and at least one diol; and at least one silazane which is accessible for copolymerization with a C?C double bond of the dicarboxylic acid. The invention also relates to an unsaturated polyester resin moulding material which can be obtained or is obtained by cross-linking an unsaturated polyester resin as defined above. Said moulding material can optionally contain reinforcing materials. Said unsaturated polyester resin can be produced using the following steps: (a) a polyester from at least one diol and at least one unsaturated dicarboxylic acid is provided; (b) at least one silazane which is accessible for copolymerization which a C?C double bond of the dicarboxylic acid is provided; (c) the components are mixed according to (a) and (b).
    Type: Application
    Filed: September 13, 2011
    Publication date: December 19, 2013
    Applicants: Clariant Finance (BVI) Limited, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Monika Bauer, Sebastian Steffen, Daniel Decker, Frank Richter