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).

  • Use of carbodiimide-containing compositions for controlling pot life
    Patent number: 9540480
    Abstract: The invention relates to the use of carbodiimide-containing compositions for controlling pot life in the production of polyurethane (PU)-based systems, preferably PU elastomers, PU adhesives, PU casting resins or PU foams.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: January 10, 2017
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Uwe Haas
  • Carbodiimides having terminal urea and/or urethane groups, methods for producing said carbodiimides, and use of said carbodiimides
    Patent number: 9512299
    Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, methods for the preparation thereof and use thereof as stabilizers in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PET), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and/or in PLA derivatives, in polybutylene adipate terephthalates (PBAT), in polybutylene succinates (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 6, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Benjamin Bechem, Armin Eckert
  • Methods for producing oil formulations by means of certain carbodiimides
    Patent number: 9464256
    Abstract: The present invention relates to a novel method for preparing stabilized oil formulations by means of certain carbodiimides.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 11, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Siegfried Kuenzel
  • Biobased carbodiimides, a process for preparation thereof and use thereof
    Patent number: 9452975
    Abstract: The present invention relates to novel biobased carbodiimides, a process for production thereof and use thereof. The biobased carbodiimides according to the invention comprise the reaction product of at least one carbodiimide and a carbon acid compound isolated or produced from renewable raw materials and having a functionality>1 and/or a hydroxy carboxylic ester having 2-24 carbon atoms.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: September 27, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Franco Orsini, Robert Eiben
  • Carbodiimide-containing compositions and method for the production and use thereof
    Patent number: 9434807
    Abstract: Carbodiimide containing compositions include diilsocyenates, polyols, and liquid carbodiimide of the formula where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R5 are each independently C1-C3-alkyl.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: September 6, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Martina Hauck
  • Catalysts for producing cast polyamide, method for the production of said catalysts and the use thereof
    Patent number: 9428611
    Abstract: The present invention relates to novel catalysts for the production of cast polyamide, to processes for production thereof and to the use thereof.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: August 30, 2016
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Serdar Uestuenbas
  • Methods for controlling (extending) the pot life in chain-extended polyurethane (PU)-based systems
    Patent number: 9321879
    Abstract: The invention relates to novel processes for controlling (extending) the pot life in polyurethane (PU) based systems that are chain-extended with diamines, preferably PU elastomers, PU adhesives, PU casting resins.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 26, 2016
    Assignee: Rhein Chemie Rheinau, GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Uwe Haas, Uwe Wuertz
  • NEW CARBODIIMIDES HAVING TERMINAL UREA AND/OR URETHANE GROUPS, METHODS FOR PRODUCING SAID CARBODIIMIDES, AND USE OF SAID CARBODIIMIDES
    Publication number: 20160096951
    Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, methods for the preparation thereof and use thereof as stabilizers in ester-based polyols, in polyethylene terephthalate (PET), in polybutylene terephthalate (PET), in polytrimethylene terephthalate (PTT), in copolyesters, in thermoplastic polyester elastomers (TPE E), in ethylene vinyl acetate (EVA), in polylactic acid (PLA) and/or in PLA derivatives, in polybutylene adipate terephthalates (PBAT), in polybutylene succinates (PBS), in polyhydroxyalkanoates (PHA), in blends, in triglycerides, in thermoplastic polyurethanes, in polyurethane elastomers, in PU adhesives, in PU casting resins, for PU coatings or in PU foams.
    Type: Application
    Filed: May 9, 2014
    Publication date: April 7, 2016
    Inventors: Wilhelm LAUFER, Benjamin BECHEM, Armin ECKERT
  • METHODS FOR PRODUCING OIL FORMULATIONS BY MEANS OF CERTAIN CARBODIIMIDES
    Publication number: 20160083673
    Abstract: The present invention relates to a novel method for preparing stabilised oil formulations by means of certain carbodiimides.
    Type: Application
    Filed: May 6, 2014
    Publication date: March 24, 2016
    Inventors: Wilhelm LAUFER, Armin ECKERT, Siegfried KUENZEL
  • Carbodiimides from trisubstituted aromatic isocyanates, a method for producing same, and the use of same
    Patent number: 9199925
    Abstract: The invention relates to innovative carbodiimides, to a process for preparing them and to the use thereof as stabilizer, crosslinker and/or compatibilizer in thermoplastics, ester-based polyols for polyurethane applications, in rigid foam, in flexible foam or, for example, in CASE (Coatings Adhesives Sealants Elastomers) applications.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: December 1, 2015
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Benjamin Bechem, Armin Eckert
  • CATALYSTS FOR PRODUCING CAST POLYAMIDE, METHOD FOR THE PRODUCTION OF SAID CATALYSTS AND THE USE THEREOF
    Publication number: 20150322204
    Abstract: The present invention relates to novel catalysts for the production of cast polyamide, to processes for production thereof and to the use thereof.
    Type: Application
    Filed: June 6, 2013
    Publication date: November 12, 2015
    Inventors: Wilhelm LAUFER, Serdar UESTUENBAS
  • Composition for producing cast polyamides
    Patent number: 9181394
    Abstract: The present invention relates to novel compositions for producing cast polyamides.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: November 10, 2015
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Benjamin Bechem, Andre Palzer
  • MOLDING POLYAMIDES, METHODS FOR THE PRODUCTION THEREOF, AND USE THEREOF
    Publication number: 20150218314
    Abstract: The present invention relates to novel cast polyamides, to processes for production thereof and to the use thereof.
    Type: Application
    Filed: March 22, 2013
    Publication date: August 6, 2015
    Applicant: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert, Andre Palzer
  • METHOD FOR STABILIZING POLYMERS CONTAINING ESTER GROUPS
    Publication number: 20150175776
    Abstract: The invention relates to methods for stabilizing polymers containing ester groups, in which specific monomeric aromatic carbodiimides are added in liquid-dosed form in the course of preparation thereof and/or processing thereof.
    Type: Application
    Filed: March 22, 2013
    Publication date: June 25, 2015
    Inventors: Wilhelm Laufer, Armin Eckert
  • Compositions, preparation thereof and use thereof for production of cast polyamides
    Patent number: 9062153
    Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: June 23, 2015
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Andre Palzer, Volker Wenzel
  • NOVEL CARBODIIMIDE-CONTAINING COMPOSITIONS AND METHOD FOR THE PRODUCTION AND USE THEREOF
    Publication number: 20150166714
    Abstract: The invention relates to novel carbodiimide-containing compositions, to a process for preparation thereof and to the use thereof in thermoplastic polyurethanes, polyurethane elastomers, PU adhesives. PU casting resins or PU foams.
    Type: Application
    Filed: March 22, 2013
    Publication date: June 18, 2015
    Inventors: Wilhelm Laufer, Armin Eckert, Martina Hauck
  • Use of carbodiimide-containing compositions for controlling pot life
    Publication number: 20150133624
    Abstract: The invention relates to the use of carbodiimide-containing compositions for controlling pot life in the production of polyurethane (PU)-based systems, preferably PU elastomers, PU adhesives, PU casting resins or PU foams.
    Type: Application
    Filed: March 22, 2013
    Publication date: May 14, 2015
    Inventors: Wilhelm Laufer, Uwe Haas
  • METHODS FOR IMPROVING THE RESISTANCE TO HYDROLYSIS IN POLYURETHANE (PU)-BASED SYSTEMS
    Publication number: 20150133623
    Abstract: The invention relates to novel processes for improving hydrolysis resistance in polyurethane (PU) based systems, preferably PU adhesives, PU casting resins, PU elastomers or PU foams.
    Type: Application
    Filed: March 22, 2013
    Publication date: May 14, 2015
    Inventors: Wilhelm Laufer, Armin Eckert, Uwe Haas, Uwe Wuertz
  • METHODS FOR CONTROLLING (EXTENDING) THE POT LIFE IN CHAIN-EXTENDED POLYURETHANE (PU)-BASED SYSTEMS
    Publication number: 20150126688
    Abstract: The invention relates to novel processes for controlling (extending) the pot life in polyurethane (PU) based systems that are chain-extended with diamines, preferably PU elastomers, PU adhesives, PU casting resins.
    Type: Application
    Filed: March 22, 2013
    Publication date: May 7, 2015
    Inventors: Wilhelm Laufer, Armin Eckert, Uwe Haas, Uwe Wuertz
  • NOVEL FILM FOR SOLAR CELLS
    Publication number: 20150090318
    Abstract: The present invention relates to novel foils for solar cells which feature improved hydrolysis resistance, and to the solar cells comprising said foils.
    Type: Application
    Filed: August 20, 2012
    Publication date: April 2, 2015
    Applicant: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert