Patents by Inventor Roland Offner

Roland Offner 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: 9228045
    Abstract: Process for preparing a seed latex of a methyl methacrylate polymer (PMMA) by radical polymerization in aqueous emulsion of methyl methacrylate and optionally at least one comonomer. Process for preparing a chlorinated vinyl polymer latex by radical polymerization in aqueous emulsion of at least one chlorinated vinyl monomer, according to which the polymerization takes place in the presence of at most 3% by weight, expressed relative to the total weight of the monomers, of the PMMA seed latex.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 5, 2016
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Peter Claassen, Roland Offner, Benoit Faye, Yves Vanderveken
  • Patent number: 8623952
    Abstract: Process for preparing a seed latex of a methyl methacrylate polymer (PMMA) by radical polymerization in aqueous emulsion of methyl methacrylate and optionally at least one comonomer. Process for preparing a chlorinated vinyl polymer latex by radical polymerization in aqueous emulsion of at least one chlorinated vinyl monomer, according to which the polymerization takes place in the presence of at most 3% by weight, expressed relative to the total weight of the monomers, of the PMMA seed latex.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 7, 2014
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Peter Claassen, Roland Offner, Benoît Faye, Yves Vanderveken
  • Publication number: 20130274402
    Abstract: Process for preparing a seed latex of a methyl methacrylate polymer (PMMA) by radical polymerization in aqueous emulsion of methyl methacrylate and optionally at least one comonomer. Process for preparing a chlorinated vinyl polymer latex by radical polymerization in aqueous emulsion of at least one chlorinated vinyl monomer, according to which the polymerization takes place in the presence of at most 3% by weight, expressed relative to the total weight of the monomers, of the PMMA seed latex.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Peter CLAASSEN, Roland Offner, Benoit Faye, Yves Vanderveken
  • Publication number: 20090203827
    Abstract: Process for preparing a seed latex of a methyl methacrylate polymer (PMMA) by radical polymerization in aqueous emulsion of methyl methacrylate and optionally at least one comonomer. Process for preparing a chlorinated vinyl polymer latex by radical polymerization in aqueous emulsion of at least one chlorinated vinyl monomer, according to which the polymerization takes place in the presence of at most 3% by weight, expressed relative to the total weight of the monomers, of the PMMA seed latex.
    Type: Application
    Filed: July 2, 2007
    Publication date: August 13, 2009
    Applicant: SOLVAY (SOCIÉTÉ ANONYME)
    Inventors: Peter Claassen, Roland Offner, Benoit Faye, Yves Vanderveken
  • Patent number: 6458230
    Abstract: A process for preparing recyclable fiber composites, comprising bonding fibers with a polymeric bonding agent applied as an aqueous polymer dispersion to said fibers, the polymeric bonding agent comprising at least one addition polymer which, in the state of an aqueous dispersion, has a film forming capability at the temperature at which the addition polymer is combined with said fibers, and said aqueous polymer dispersion, when subjected to a change in pH, is converted into an aqueous solution of the addition polymer. The aqueous addition polymer of the addition polymer dispersion can contain protic acid groups, and the state of the dispersion can be converted to an aqueous addition polymer solution by raising the pH of the aqueous medium. Alternatively, the addition polymer may contain basic groups, in particular, amino groups, and its state as a dispersion can be converted into an aqueous addition polymer resolution by lowering the pH of the aqueous medium.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: October 1, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Rupaner, Karl-Heinz Schumacher, Werner Kirchner, Bradley Ronald Morrison, Roland Offner, Hermann Seyffer