Patents by Inventor Wilhelm Laufer

Wilhelm Laufer 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).

  • HYDROLYSIS STABLE COMPOSITIONS FOR FILMS IN SOLAR CELLS
    Publication number: 20230112640
    Abstract: The present invention relates to polyester and carbodiimide containing transparent films for solar cells, which are characterized by improved resistance to hydrolysis, and also to the solar cells comprising these films. The carbodiimides have a number-average molar mass Mn of >1000 to <2000 g/mol, determined by GPC, measured in tetrahydrofuran (THF) against polystyrene as standard.
    Type: Application
    Filed: December 13, 2022
    Publication date: April 13, 2023
    Applicant: LANXESS Deutschland GmbH
    Inventor: Wilhelm LAUFER
  • Hydrolysis-resistant compositions comprising polyethylene terephthalate (PET)
    Publication number: 20220411605
    Abstract: The invention relates to hydrolysis-resistant compositions comprising polyethylene terephthalate (PET), production processes, and use of the said compositions.
    Type: Application
    Filed: April 7, 2022
    Publication date: December 29, 2022
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Marcel Gelfort
  • Method for producing carbodiimides
    Patent number: 11447447
    Abstract: The present disclosure provides new methods for preparing carbodiimides including steps of carbodiimidizing monomeric aromatic isocyanates in the presence of a catalyst, separating low boilers and catalyst from the reaction product in a thin-film evaporator, and distilling the residue from the thin-film evaporation in a further thin-film evaporator.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 20, 2022
    Assignee: LANXESS Deutschland GmbH
    Inventor: Wilhelm Laufer
  • Multilayer system of at least three polyester layers, production thereof and use thereof
    Publication number: 20220063168
    Abstract: The present invention relates to a multilayer system of at least 3 polyester layers, production thereof and use thereof for producing packaging, protective films, adhesive films, solar cells or medical materials and also solar cells produced therefrom.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 3, 2022
    Applicant: LANXESS Deutschland GmbH
    Inventor: Wilhelm Laufer
  • METHOD FOR PRODUCING CARBODIIMIDES
    Publication number: 20200331849
    Abstract: The invention relates to a novel method for preparing carbodiimides.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 22, 2020
    Applicant: LANXESS Deutschland GmbH
    Inventor: Wilhelm LAUFER
  • Hydrolysis-resistant compositions comprising polyethylene terephthalate (PET)
    Publication number: 20200231781
    Abstract: The invention relates to hydrolysis-resistant compositions comprising polyethylene terephthalate (PET), production processes, and use of the said compositions.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 23, 2020
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Marcel Gelfort
  • COMPOSITIONS CONTAINING POLYMERIC CARBODIIMIDE, EPOXIDE AND POLYESTER-BASED POLYMERS, AND PRODUCTION AND USE THEREOF
    Publication number: 20200165442
    Abstract: The present invention relates to compositions containing halogen-free polymeric carbodiimide, halogen-free epoxide and polyester-based polymers, in particular polybutylene terephthalate-based compositions, to articles of manufacture and to their production and use.
    Type: Application
    Filed: July 16, 2018
    Publication date: May 28, 2020
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm LAUFER, Boris NEUWALD, Matthias BIENMUELLER
  • Method for stabilizing polyester-resin-based bioplastics
    Patent number: 10494505
    Abstract: The object of the invention is a method for stabilizing polyester-resin-based bioplastics by means of specific carbodiimides.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 3, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Martina Schoenhaber
  • Method for the synthesis of polymer carbodiimides with added cesium salts, polymer carbodiimides, and use thereof
    Patent number: 10351652
    Abstract: The present invention relates to processes for producing polymeric carbodiimides by addition of cesium salts and to polymeric carbodiimides produced by this process and to the use thereof as a hydrolysis inhibitor, especially in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 16, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Oliver Herd, Rolf Sperber
  • HYDROLYSIS STABLE COMPOSITIONS FOR FILMS IN SOLAR CELLS
    Publication number: 20190135999
    Abstract: The present invention relates to novel compositions stable to hydrolysis, especially for films in solar cells, which are characterized by improved resistance to hydrolysis, and also to the solar cells comprising these films.
    Type: Application
    Filed: May 30, 2017
    Publication date: May 9, 2019
    Applicant: LANXESS Deutschland GmbH
    Inventor: Wilhelm LAUFER
  • COMPOSITIONS CONTAINING CARBODIIMIDE, ESTER AND PVC, PRODUCTION AND USE THEREOF
    Publication number: 20190127554
    Abstract: Plasticizer compositions that are less volatile and have improved resistance to hydrolysis include specific combinations of carbodiimides and specified esters. The plasticizers may include aromatic carbodiimides, and be particularly suited for plastics such as polyvinyl chloride, The carbodiimides and esters may be initially mixed as a pre-mix composition to be added to a polymer, or the polymer, carbodiimides and esters may be mixed together essentially simultaneously to produce a plasticized polymer.
    Type: Application
    Filed: May 5, 2017
    Publication date: May 2, 2019
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm LAUFER, Thomas FACKLAM
  • NOVEL COMPOSITIONS FOR PRODUCING CAST POLYAMIDES
    Publication number: 20190119445
    Abstract: The present invention relates to novel compositions for production of cast polyamides.
    Type: Application
    Filed: December 17, 2018
    Publication date: April 25, 2019
    Applicant: LANXESS Deutschland GmbH
    Inventors: Andreas KUGLER, Armin ECKERT, Wilhelm LAUFER, Michael WITT, Detlev JOACHIMI, Gunter MARGRAF, Thomas FRUH
  • Bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide, production methods, and use of said compound
    Patent number: 10239827
    Abstract: The present invention relates to novel processes for producing bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide, to the thus-produced bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide and to the use thereof as a hydrolysis inhibitor in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: March 26, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Martina Schoenhaber, Armin Eckert, Oliver Herd, Rolf Sperber
  • COMPOSITIONS CONTAINING POLYMERIC CARBODIIMIDE, EPOXIDE AND POLYESTER-BASED POLYMERS, THEIR PRODUCTION AND USE
    Publication number: 20190016853
    Abstract: The present invention relates to compositions containing polymeric carbodiimide, epoxide and polyester-based polymers, their production and use.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 17, 2019
    Applicant: LANXESS Deutschland GmbH
    Inventors: Boris NEUWALD, Matthias BIENMULLER, Wilhelm LAUFER
  • Carbodiimides, method for the production and use thereof
    Patent number: 10065925
    Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, to processes for the production thereof and to the use thereof as a stabilizer in ester-based polymers especially in films for protection from hydrolytic degradation.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 4, 2018
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Volker Wenzel
  • Method for the Synthesis of Polymer Carbodiimides with Added Cesium Salts, Polymer Carbodiimides, and Use Thereof
    Publication number: 20180171058
    Abstract: The present invention relates to processes for producing polymeric carbodiimides by addition of cesium salts and to polymeric carbodiimides produced by this process and to the use thereof as a hydrolysis inhibitor, especially in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
    Type: Application
    Filed: June 14, 2016
    Publication date: June 21, 2018
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm LAUFER, Oliver HERD, Rolf SPERBER
  • NOVEL CARBODIIMIDES, METHOD FOR THE PRODUCTION AND USE THEREOF
    Publication number: 20170334839
    Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, to processes for the production thereof and to the use thereof as a stabilizer in ester-based polymers especially in films for protection from hydrolytic degradation.
    Type: Application
    Filed: November 3, 2015
    Publication date: November 23, 2017
    Applicant: LANXESS Deutschland GmbH
    Inventors: Wilhelm LAUFER, Volker WENZEL
  • Molding polyamides, methods for the production thereof, and use thereof
    Patent number: 9738755
    Abstract: The present invention relates to novel cast polyamides, to processes for production thereof and to the use thereof.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 22, 2017
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Andre Palzer
  • METHOD FOR STABILIZING POLYESTER-RESIN-BASED BIOPLASTICS
    Publication number: 20170190873
    Abstract: The object of the invention is a method for stabilizing polyester-resin-based bioplastics by means of specific carbodiimides.
    Type: Application
    Filed: July 13, 2015
    Publication date: July 6, 2017
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: Wilhelm LAUFER, Martina SCHOENHABER
  • BIS[3-ISOPROPENYL-ALPHA,ALPHA-DIMETHYLBENZYL]CARBODIIMIDE, PRODUCTION METHODS, AND USE OF SAID COMPOUND
    Publication number: 20170088509
    Abstract: The present invention relates to novel processes for producing bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide, to the thus-produced bis[3-isopropenyl-?,?-dimethylbenzyl]carbodiimide and to the use thereof as a hydrolysis inhibitor in polyurethane (PU)-based systems, preferably thermoplastic TPU, PU adhesives, PU casting resins, PU elastomers or PU foams.
    Type: Application
    Filed: June 3, 2015
    Publication date: March 30, 2017
    Applicant: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm LAUFER, Martina SCHOENHABER, Armin ECKERT, Oliver HERD, Rolf SPERBER