Patents by Inventor Daniela Leutfeld

Daniela Leutfeld 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: 10377906
    Abstract: The invention relates to a rheology control agent containing i) 15-95% by weight of an amide compound (A), ii) 5-75% by weight of a urea compound (B), iii) 0-50% by weight of an ionogenic compound (C) and iv) 0-35% weight of an organic solvent (D).
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: August 13, 2019
    Assignee: BYK-Chemie GmbH
    Inventors: Daniela Leutfeld, Marc Eberhardt, René Nagelsdiek, Sylvia Bühne, Jürgen Omeis, Jasmin Rudner
  • Patent number: 9796860
    Abstract: The invention relates to a urea preparation containing (A) 5 to 75 wt. % of one or more urea components which have a molecular weight of at least 350 g/mol and contain at least one urea group; (B) 15 to 95 wt. %, preferably 30 to 80 wt.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 24, 2017
    Assignee: BYK-Chemie GmbH
    Inventors: Daniela Leutfeld, Marc Eberhardt, René Nagelsdiek, Sylvia Bühne, Jürgen Omeis, Berthold Jacobs
  • Publication number: 20170240748
    Abstract: The invention relates to a rheology control agent containing i) 15-95% by weight of an amide compound (A), ii) 5-75% by weight of a urea compound (B), iii) 0-50% by weight of an ionogenic compound (C) and iv) 0-35% weight of an organic solvent (D).
    Type: Application
    Filed: February 11, 2015
    Publication date: August 24, 2017
    Inventors: Daniela LEUTFELD, Marc EBERHARDT, René NAGELSDIEK, Sylvia BÜHNE, Jürgen OMEIS, Jasmin RUDNER
  • Patent number: 9617371
    Abstract: The invention relates to polyureas having a weight-average molecular weight ranging from 5,000 to 70,000 g/mol, the preparation thereof, and the use thereof as rheology control agents. The invention further relates to rheology control agents containing polyureas and to the use thereof. The invention moreover relates to formulations containing polyureas.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: April 11, 2017
    Assignee: BYK-Chemie GmbH
    Inventors: Daniela Leutfeld, Bianca Morhenn, Marc Eberhardt, Ina Kober, Jürgen Omeis, Sylvia Bühne, Berthold Jacobs
  • Publication number: 20170044378
    Abstract: The invention relates to a rheology control agent containing i) 15-95% by weight of an amide compound (A), ii) 5-75% by weight of a urea compound (B), iii) 0-50% by weight of an ionogenic compound (C) and iv) 0-35% weight of an organic solvent (D).
    Type: Application
    Filed: February 11, 2015
    Publication date: February 16, 2017
    Inventors: Daniela LEUTFELD, Marc EBERHARDT, René NAGELSDIEK, Sylvia BÜHNE, Jürgen OMEIS, Jasmin RUDNER
  • Publication number: 20170037262
    Abstract: The invention relates to a urea preparation containing (A) 5 to 75 wt. % of one or more urea components which have a molecular weight of at least 350 g/mol and contain at least one urea group; (B) 15 to 95 wt. %, preferably 30 to 80 wt.
    Type: Application
    Filed: April 15, 2015
    Publication date: February 9, 2017
    Inventors: Daniela LEUTFELD, Marc EBERHARDT, René NAGELSDIEK, Sylvia BÜHNE, Jürgen OMEIS, Berthold JACOBS
  • Patent number: 9458332
    Abstract: The present invention relates to a composition effective as a rheology additive containing 15-95 wt.-% of an oxygen compound (A), 5-75 wt.-% of a urea compound (B), 0-50 wt.-% of an ionogenic compound (C) and 0-35 wt.-% of an organic solvent (D).
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: October 4, 2016
    Assignee: BYK-Chemie GmbH
    Inventors: Daniela Leutfeld, René Nagelsdiek, Jürgen Omeis, Jasmin Rudner
  • Publication number: 20160185985
    Abstract: The present invention relates to a composition effective as a rheology additive containing 15-95 wt.-% of an oxygen compound (A), 5-75 wt.-% of a urea compound (B), 0-50 wt.-% of an ionogenic compound (C) and 0-35 wt.-% of an organic solvent (D).
    Type: Application
    Filed: September 10, 2013
    Publication date: June 30, 2016
    Inventors: Daniela LEUTFELD, René NAGELSDIEK, Jürgen OMEIS, Jasmin RUDNER
  • Patent number: 9206334
    Abstract: The invention relates to a coating preparation containing i) 0.1 to 9.0 wt % a urea component (A), ii) 0.1 to 5.0 wt % an amide component (B), iii) 10.0 to 90.0 wt % a binding agent component (C) that is different from both the urea component (A) and the amide component (B), and iv) 0 to 85.0 wt % a solvent component (D), wherein the sum of the urea component (A) and amide component (B) fractions is 0.3 to 10.0 wt % and the sum of the binding component (C) and solvent component (D) fractions is 80.0 to 99.7 wt %.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: December 8, 2015
    Assignee: BYK-Chemie GmbH
    Inventors: Sylvia Bühne, Jürgen Omeis, Daniela Leutfeld, Marc Eberhardt, Berthold Jacobs
  • Publication number: 20120289635
    Abstract: The invention relates to a coating preparation containing i) 0.1 to 9.0 wt % a urea component (A), ii) 0.1 to 5.0 wt % an amide component (B), iii) 10.0 to 90.0 wt % a binding agent component (C) that is different from both the urea component (A) and the amide component (B), and iv) 0 to 85.0 wt % a solvent component (D), wherein the sum of the urea component (A) and amide component (B) fractions is 0.3 to 10.0 wt % and the sum of the binding component (C) and solvent component (D) fractions is 80.0 to 99.7 wt %.
    Type: Application
    Filed: January 28, 2010
    Publication date: November 15, 2012
    Inventors: Sylvia Bühne, Jürgen Omeis, Daniela Leutfeld, Marc Eberhardt, Berthold Jacobs
  • Publication number: 20120226075
    Abstract: The invention relates to polyureas having a weight-average molecular weight ranging from 5,000 to 70,000 g/mol, the preparation thereof, and the use thereof as rheology control agents. The invention further relates to rheology control agents containing polyureas and to the use thereof. The invention moreover relates to formulations containing polyureas.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 6, 2012
    Applicant: BYK-Chemie GmbH
    Inventors: Daniela Leutfeld, Bianca Morhenn, Marc Eberhardt, Ina Kober, Jürgen Omeis, Sylvia Bühne, Berthold Jacobs
  • Patent number: 8153697
    Abstract: The invention relates to the use of a polyamide prepared from at least one diamine and at least one dicarboxylic acid in a formulation for defoaming aqueous media. The invention also relates to defoamers for aqueous media that comprise such a polyamide.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: April 10, 2012
    Assignee: BYK-Chemie GmbH
    Inventors: Albert Frank, Daniela Leutfeld, Dinah Grawe, Michaela Michelbrink