Patents by Inventor Willi Paar

Willi Paar 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: 8962768
    Abstract: Reaction products AE of vinyl copolymers A having at least one functional group per molecule, with multifunctional compounds E derived from epoxide functional compounds having, on average, at least two functional groups per molecule, which reaction products AE have structural elements derived from ethylenically unsaturated monomers, and beta-hydroxy alkylene imine, —NR—CH2—CR?(OH)—, or the corresponding ammonium structure, where R and R?, independently from each other, stand for H or an alkyl group having from 1 to 8 carbon atoms, a process for their preparation, and a method of use thereof as binders for waterborne coating compositions.
    Type: Grant
    Filed: February 19, 2011
    Date of Patent: February 24, 2015
    Assignee: Allnex Austria GmbH
    Inventors: Johann Billiani, Roland Feola, Willi Paar
  • Patent number: 8445585
    Abstract: This invention relates to binder mixtures comprising mass fractions of from 70% to 98% of chain-extended epoxy amine adducts A and from 2% to 30% of carboxy functional polyesters B that contain a limited amount of aromatic constituents in mass fractions of up to 15% and have an acid number of from 4 mg/g to 50 mg/g, a method of making these binder mixtures, and a method of use thereof in coatings for metals, wood, cardboard, plaster, and concrete.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: May 21, 2013
    Assignee: Cytec Surface Specialties Austria GmbH
    Inventors: Willi Paar, Roland Feola, Johann Gmoser, Rosemaria Grasboeck
  • Publication number: 20130005897
    Abstract: Reaction products AE of vinyl copolymers A having at least one functional group per molecule, with multifunctional compounds E derived from epoxide functional compounds having, on average, at least two functional groups per molecule, which reaction products AE have structural elements derived from ethylenically unsaturated monomers, and beta-hydroxy alkylene imine, —NR—CH2—CR? (OH)—, or the corresponding ammonium structure, where R and R?, independently from each other, stand for H or an alkyl group having from 1 to 8 carbon atoms, a process for their preparation, and a method of use thereof as binders for waterborne coating compositions.
    Type: Application
    Filed: February 19, 2011
    Publication date: January 3, 2013
    Inventors: Johann Billiani, Roland Feola, Willi Paar
  • Publication number: 20100069563
    Abstract: This invention relates to binder mixtures comprising mass fractions of from 70% to 98% of chain-extended epoxy amine adducts A and from 2% to 30% of carboxy functional polyesters B that contain a limited amount of aromatic constituents in mass fractions of up to 15% and have an acid number of from 4 mg/g to 50 mg/g, a method of making these binder mixtures, and a method of use thereof in coatings for metals, wood, cardboard, plaster, and concrete.
    Type: Application
    Filed: January 8, 2008
    Publication date: March 18, 2010
    Inventors: Willi Paar, Roland Feola, Johann Gmoser, Rosemaria Grasboeck