Patents by Inventor Michael Riethues

Michael Riethues 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: 8222307
    Abstract: Expandable styrene polymers (EPS) comprising, in each case based on the styrene polymer, a) from 0.05 to 5% by weight of an organic bromine compound whose bromine content is at least 50% by weight, as flame retardant, b) from 0.05 to 2% by weight of a flame retardant synergist, c) from 0.1 to 5% by weight of a metal salt as acid scavenger, and process for their production.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: July 17, 2012
    Assignee: BASF SE
    Inventors: Markus Allmendinger, Bernhard Schmied, Joachim Ruch, Konrad Knoll, Michael Riethues, Klaus Hahn, Carsten Schips, Jessica Rylander
  • Publication number: 20110178192
    Abstract: A coating formulation intended for expandable particulate styrene polymer and comprising (A) from 10 to 90% by weight of a tristearyl ester whose melting point is in the range from 60 to 65° C., (B) from 10 to 90% by weight of a triglyceride of a hydroxy-C16-C18 oleic acid whose melting point is in the range from 70 to 95° C., and also expandable particulate styrene polymer which has at least one coating composed of said coating-composition formulation.
    Type: Application
    Filed: August 8, 2008
    Publication date: July 21, 2011
    Applicant: BASF SE
    Inventors: Andreas Keller, Olaf Kriha, Wolfram Husemann, Klaus Hahn, Bernhard Schmied, Michael Riethues
  • Publication number: 20100273925
    Abstract: Expandable styrene polymers (EPS) comprising, in each case based on the styrene polymer, a) from 0.05 to 5% by weight of an organic bromine compound whose bromine content is at least 50% by weight, as flame retardant, b) from 0.05 to 2% by weight of a flame retardant synergist, c) from 0.1 to 5% by weight of a metal salt as acid scavenger, and process for their production.
    Type: Application
    Filed: November 20, 2008
    Publication date: October 28, 2010
    Applicant: BASF SE
    Inventors: Markus Allmendinger, Bernhard Schmied, Joachim Ruch, Konrad Knoll, Michael Riethues, Klaus Hahn, Carsten Schips, Jessica Rylander
  • Publication number: 20100032856
    Abstract: A process for producing coated foam particles, in which an aqueous polymer dispersion is applied to the foam particles and is subsequently dried to form a water-insoluble polymer film, and also foam moldings produced therefrom and their use.
    Type: Application
    Filed: October 4, 2007
    Publication date: February 11, 2010
    Applicant: BASF SE Patent, Trademarks and Licenses
    Inventors: Klaus Hahn, Benjamin Nehls, Bernhard Schmied, Michael Riethues, Andreas Keller, Volker Warzelhan
  • Publication number: 20080248198
    Abstract: The invention relates to a process for producing foam moldings from prefoamed foam particles which have a polymer coating in a mold under pressure, wherein the polymer coating comprises an amphiphilic or hydrophobic organic compound, and also foam moldings produced therefrom and their use.
    Type: Application
    Filed: August 9, 2006
    Publication date: October 9, 2008
    Applicant: Basf SE
    Inventors: Markus Allmendinger, Klaus Hahn, Bernhard Schmied, Michael Riethues, Edith Antonatus
  • Publication number: 20080230956
    Abstract: A process for producing foam moldings from prefoamed foam particles which have a polymer coating in a mold under pressure, wherein the prefoamed foam particles comprise from 10 to 70% by weight, based on the foam particles, of a filler, and also foam moldings produced therefrom and their use.
    Type: Application
    Filed: August 9, 2006
    Publication date: September 25, 2008
    Applicant: BASF SE
    Inventors: Markus Allmendinger, Klaus Hahn, Bernhard Schmied, Michael Riethues
  • Publication number: 20080234400
    Abstract: The invention relates to a process for producing foam moldings from prefoamed foam particles which have a polymer coating in a mold under pressure, wherein the polymer coating comprises an athermanous compound and also foam moldings produced therefrom and their use.
    Type: Application
    Filed: August 9, 2006
    Publication date: September 25, 2008
    Applicant: BASF SE
    Inventors: Markus Allmendinger, Klaus Hahn, Bernhard Schmied, Michael Riethues
  • Publication number: 20080224357
    Abstract: A process for producing foam moldings from prefoamed foam particles which have a polymer coating under pressure in a mold in the absence of steam, and also foam moldings produced therefrom and their use.
    Type: Application
    Filed: August 9, 2006
    Publication date: September 18, 2008
    Applicant: BASF SE
    Inventors: Markus Allmendinger, Klaus Hahn, Bernhard Schmied, Michael Riethues, Edith Antonatus
  • Publication number: 20070112081
    Abstract: Moldable-foam moldings whose density is in the range from 10 to 100 g/l, obtainable via the fusion of prefoamed foam beads composed of expandable, pelletized thermoplastic polymer materials, comprising from 5 to 100% by weight of a styrene copolymer A), from 0 to 95% by weight of polystyrene B), and from 0 to 95% by weight of a thermoplastic polymer C) other than A) and B), and a process for producing the expandable pelletized thermoplastic polymer materials.
    Type: Application
    Filed: December 10, 2004
    Publication date: May 17, 2007
    Applicant: BASF Aktiengensellschaft
    Inventors: Klaus Hahn, Gerd Ehrmann, Joachim Ruch, Markus Allmendinger, Bernhard Schmied, Jan Holoch, Klaus Muhlbach, Michael Riethues
  • Publication number: 20060057291
    Abstract: A process for generating raised textures on a substrate, in which a printing or coating composition comprising a film-forming polymeric binder, a solvent, heat-expandable polymer particles, and, where appropriate, other usual additives is applied to the substrate by printing or coating, and the printed or coated substrate is heat-treated, which comprises using expandable polymer particles which are colored or colorless expandable polystyrene beads whose diameter in the unexpanded state is from 0.1 to 5 mm.
    Type: Application
    Filed: June 4, 2003
    Publication date: March 16, 2006
    Inventors: Tibor Duris, Ralf Mobbach, Michael Riethues, Gunter Renz, Dieter Jacob
  • Patent number: 5585410
    Abstract: Bead-form, expandable styrene polymers containing, based on the styrene polymer, from 0.005 to 1.5% by weight of polyethylene wax and from 0.005 to 1% by weight of dimeric .alpha.-methylstyrene, and a process for the preparation thereof.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: December 17, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Scherzer, Klaus Hahn, Michael Riethues, Dieter Naegele, Michael Witt, Wolfram Husemann
  • Patent number: 5258415
    Abstract: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: November 2, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Knut Kaempfer, Hans Hintz, Anthony Schaefer, Michael Riethues, Michael Witt
  • Patent number: 5229429
    Abstract: The invention relates to expandable styrene polymers containinga) a styrene polymer,b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), andc) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight,where the blowing agent or blowing agent mixture comprisesc.sub.1) from 10 to 100% by weight of carbon dioxide andc.sub.2) from 0 to 90% by weight of at least one further blowing agent.The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: July 20, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Hahn, Knut Kaempfer, Hans Hintz, Anthony Schaefer, Michael Riethues, Michael Witt
  • Patent number: 5177115
    Abstract: An oil-resistant, expandable styrene polymer containsa) from 10 to 90% by weight of uncrosslinked polystyrene and/or an uncrosslinked styrene copolymer containing at least 50% by weight of copolymerized styrene,b) from 10 to 90% by weight of a crosslinked styrene polymer which contains at least 0.1% by weight, but less than 2% by weight, of a copolymerized monomer having at least two olefinic double bonds,c) from 1 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired,d) conventional additives in effective amounts,the mixture of a) and b) having a melt flow index MFI (200.degree. C., 5.0 kp) in accordance with DIN 53 735 of from 1 to 20 [g/10 min].
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: January 5, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Hintz, Klaus Hahn, Uwe Guhr, Michael Riethues
  • Patent number: 5096931
    Abstract: An expandable styrene polymer containinga) a styrene polymer,b) from 0.05 to 3% by weight, based on a), of water,c) from 0.001 to 1% by weight, based on a), of a finely divided organic polymer having a water absorption capacity of 10 g/g or more,d) from 0.5 to 8% by weight, based on a), of a C.sub.3 - to C.sub.6 -hydrocarbon, and, if desired,e) conventional additives in effective amounts, have good flow properties and low adhesion during prefoaming.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: March 17, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Wittenberg, Klaus Hahn, Uwe Guhr, Hans Hintz, Michael P. O'Callaghan, deceased, Michael Riethues