Patents by Inventor Ingrid Haufe

Ingrid Haufe 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).

  • Aqueous emulsion of a sizing agent
    Patent number: 9708771
    Abstract: A method of preparing an aqueous emulsion of a sizing agent for use in a papermaking process comprising, emulsifying the sizing agent into an aqueous liquid, in which an aqueous dispersion of a water-soluble polymer of N-vinylformamide and/or N-vinylacetamide units is added to either the sizing agent or the aqueous liquid before, during or after emulsification, wherein the dispersion contains, based on 100 parts by weight of water, (A) from 0.1 to 80 parts by weight of a water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units, and (B) from 0.02 to 50 parts by weight of at least one polymeric dispersant.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: July 18, 2017
    Assignee: BASF SE
    Inventors: Ingrid Haufe, Klaus Möller, Attila Kurucz
  • AQUEOUS EMULSION OF A SIZING AGENT
    Publication number: 20160010282
    Abstract: A method of preparing an aqueous emulsion of a sizing agent for use in a papermaking process comprising, emulsifying the sizing agent into an aqueous liquid, in which an aqueous dispersion of a water-soluble polymer of N-vinylformamide and/or N-vinylacetamide units is added to either the sizing agent or the aqueous liquid before, during or after emulsification, wherein the dispersion contains, based on 100 parts by weight of water, (A) from 0.1 to 80 parts by weight of a water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units, and (B) from 0.02 to 50 parts by weight of at least one polymeric dispersant.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 14, 2016
    Applicant: BASF SE
    Inventors: Ingrid Haufe, Klaus Möller, Attila Kurucz