Patents by Inventor Hans Georg Grablowitz

Hans Georg Grablowitz 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: 11028296
    Abstract: The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (Tg) as determined by differential scanning calorimetry of less than ?30° C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (Tg) as determined by differential scanning calorimetry (DSC) of 0° C. to 20° C. and a hard block content of greater than 50%.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: June 8, 2021
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Stephanie Goldfein, Makoto Nakao, Lyubov Gindin, Hans Georg Grablowitz, Ronald Konitsney, Derick Henderson, Tina Kasardo, Philip Jones, Michael K. Jeffries
  • Patent number: 10934386
    Abstract: The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 2, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Hans Georg Grablowitz, Thomas Feller
  • Publication number: 20200362196
    Abstract: The invention relates to a polyurethane polymer-based aqueous dispersion and a method for preparing the same, a composition comprising the aqueous dispersion, use of the composition, and a coated article. The aqueous dispersion comprises a polyurethane polymer and water, wherein the polyurethane polymer is obtained by reacting a system comprising the following components: an isocyanate compound comprising a pentamethylene diisocyanate, wherein the amount of the pentamethylene diisocyanate is not less than 25 wt. % based on that the amount of the isocyanate compound is 100 wt. %; a polymer polyol having a number average molecular weight of not less than 400 g/mol, wherein the polymer polyol comprises a carbon dioxide-derived polyether carbonate polyol, the amount of which is not less than 40 wt. % based on that the amount of the polymer polyol is 100 wt.
    Type: Application
    Filed: December 27, 2018
    Publication date: November 19, 2020
    Inventors: Zhirong Fan, Su Juan Zhai, Evgeny Avtomonov, Hans Georg Grablowitz, Thomas Michaelis
  • Publication number: 20200306660
    Abstract: The present invention relates to a process for removing ketazine from polyurethane dispersions by means of distillation below the boiling point of ketazine.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 1, 2020
    Inventors: Hans Georg GRABLOWITZ, Alfred ZASTROW, Olaf FLECK
  • Patent number: 10752727
    Abstract: The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 25, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Hans Georg Grablowitz, Alexander Pross, Reiner Witkowski, Holger Breuer, Sven Gestermann, Christian Joachim Hahn, Stephan Schubert, Joachim Ritter
  • Publication number: 20190225738
    Abstract: The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.
    Type: Application
    Filed: July 26, 2017
    Publication date: July 25, 2019
    Inventors: Hans Georg GRABLOWITZ, Thomas FELLER
  • Patent number: 10233279
    Abstract: The present invention relates to novel aqueous polyurethane dispersions produced using at least two poly(tetramethylene glycol) polyether polyols with different average molar masses and at least two different polyisocyanate components.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: March 19, 2019
    Assignee: Covestro-Deutschland AG
    Inventors: Sebastian Dörr, Hans Georg Grablowitz, Thomas Feller, Thomas Michaelis
  • Publication number: 20190040291
    Abstract: The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (Tg) as determined by differential scanning calorimetry of less than ?30° C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (Tg) as determined by differential scanning calorimetry (DSC) of 0° C. to 20° C. and a hard block content of greater than 50%.
    Type: Application
    Filed: April 9, 2018
    Publication date: February 7, 2019
    Inventors: Stephanie Goldfein, Makoto Nakao, Lyubov Gindin, Hans Georg Grablowitz, Ronald Konitsney, Derick Henderson, Tina Kasardo, Philip Jones, Michael K. Jeffries
  • Publication number: 20190040181
    Abstract: The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (Tg) as determined by differential scanning calorimetry of less than ?30° C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (Tg) as determined by differential scanning calorimetry (DSC) of 0° C. to 20° C. and a hard block content of greater than 50%.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 7, 2019
    Inventors: Stephanie Goldfein, Makoto Nakao, Lyubov Gindin, Hans Georg Grablowitz, Ronald Konitsney, Derick Henderson, Tina Kasardo
  • Publication number: 20190040252
    Abstract: The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (Tg) as determined by differential scanning calorimetry of less than ?30° C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (Tg) as determined by differential scanning calorimetry (DSC) of 0° C. to 20° C. and a hard block content of greater than 50%.
    Type: Application
    Filed: April 5, 2018
    Publication date: February 7, 2019
    Inventors: Stephanie Goldfein, Makoto Nakao, Lyubov Gindin, Hans Georg Grablowitz, Ronald Konitsney, Derick Henderson, Tina Kasardo
  • Patent number: 9783701
    Abstract: An aqueous polyurethane dispersion comprises a polyurethane polymer obtainable by the reaction of an isocyanate-functional polyurethane prepolymer A) with an isocyanate-reactive component B), wherein the isocyanate-functional prepolymer A) is obtainable by the reaction of a mixture comprising: a polyol component comprising a polyester polyol obtainable by the reaction of a mixture comprising an aliphatic dicarboxylic acid and at least one diol selected from the group consisting of linear aliphatic diols and a branched aliphatic diols; and a polyisocyanate component comprising ?50 weight-%, based on the total weight of polyisocyanates, of dicyclohexylmethane diisocyanate. The isocyanate-reactive component B) comprises a compound comprising sulfonate groups which is employed in an amount of ?3.5 weight-% to ?10 weight-%, based on the total weight of the polyol component, the polyisocyanate component and the isocyanate-reactive component B).
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 10, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Sebastian Dörr, Hans Georg Grablowitz, Sophie Viala, Thomas Feller, Thomas Michaelis
  • Publication number: 20160376438
    Abstract: The present invention relates to an aqueous polyurethane dispersion, to a process for producing an aqueous polyurethane dispersion, to the use thereof for production of paints, coatings, sealants or adhesives, to aqueous one- or two-component coating compositions, and to paints, coatings, sealants and adhesives. The polyurethanes present are essentially free of urea groups and have an OH content of less than 0.25% by weight.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 29, 2016
    Inventor: Hans Georg GRABLOWITZ
  • Patent number: 9404020
    Abstract: The present invention relates to an aqueous blocked polyurethaneurea dispersion which is obtainable by reacting at least one polyisocyanate, one blocking agent for isocyanate groups, one polyamine having at least one carboxyl and/or carboxylate group, and water. Additionally provided by the invention are a coating composition comprising the aqueous blocked polyurethaneurea dispersion, the use of the aqueous blocked polyurethaneurea dispersion or of the coating composition for producing a coating, a coating obtainable using the aqueous blocked polyurethaneurea dispersion or the coating composition, and a method for producing the aqueous blocked polyurethaneurea dispersion.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: August 2, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Hans-Georg Grablowitz, Thomas Feller, Thomas Michaelis, Tanja Hebestreit, Ingo Gipperich
  • Publication number: 20150141573
    Abstract: The present invention relates to an aqueous blocked polyurethaneurea dispersion which is obtainable by reacting at least one polyisocyanate, one blocking agent for isocyanate groups, one polyamine having at least one carboxyl and/or carboxylate group, and water. Additionally provided by the invention are a coating composition comprising the aqueous blocked polyurethaneurea dispersion, the use of the aqueous blocked polyurethaneurea dispersion or of the coating composition for producing a coating, a coating obtainable using the aqueous blocked polyurethaneurea dispersion or the coating composition, and a method for producing the aqueous blocked polyurethaneurea dispersion.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Inventors: Hans-Georg Grablowitz, Thomas Feller, Thomas Michaelis, Tanja Hebestreit, Ingo Gipperich
  • Publication number: 20150005444
    Abstract: The present invention relates to aqueous polyurethane dispersions containing an anionically hydrophilized and non-ionically hydrophilized polyurethane polymer with incorporated dihydrazide compounds, to a process for preparing them, and to their use for preparing coated textiles.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 1, 2015
    Inventors: Hans Georg Grablowitz, Thomas Feller, Wei Zhuang
  • Publication number: 20140342624
    Abstract: Aqueous polyurethane dispersion for waterproof breathable coatings An aqueous polyurethane dispersion comprises a polyurethane polymer obtainable by the reaction of an isocyanate-functional polyurethane prepolymer A) with an isocyanate-reactive component B), wherein the isocyanate-functional prepolymer A) is obtainable by the reaction of a mixture comprising: a polyol component comprising a polyester polyol obtainable by the reaction of a mixture comprising an aliphatic dicarboxylic acid and at least one diol selected from the group consisting of linear aliphatic diols and a branched aliphatic diols; and a polyisocyanate component comprising ?50 weight-%, based on the total weight of polyisocyanates, of dicyclohexylmethane diisocyanate. The isocyanate-reactive component B) comprises a compound comprising sulfonate groups which is employed in an amount of ?3.5 weight-% to ?10 weight-%, based on the total weight of the polyol component, the polyisocyanate component and the isocyanate-reactive component B).
    Type: Application
    Filed: September 11, 2012
    Publication date: November 20, 2014
    Applicant: Bayer Intellectual Property GmbH Creative Campus Monheim
    Inventors: Sebastian Dörr, Hans Georg Grablowitz, Sophie Viala, Thomas Feller, Thomas Michaelis
  • Publication number: 20140249266
    Abstract: The present invention relates to aqueous polyurethane urea dispersions based on polyester polyols, which dispersions result in low emissions and are used as coating compositions.
    Type: Application
    Filed: March 28, 2012
    Publication date: September 4, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Hans Georg Grablowitz, Thomas Feller, Thomas Michaelis, Evgeny Avtomonov
  • Patent number: 8513334
    Abstract: The present invention relates to aqueous polyurethane urea dispersions having integral functional groups and coating agents produced therefrom, to a method for the production thereof, and to the use thereof for producing coating agents.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: August 20, 2013
    Assignee: Bayer Materialscience AG
    Inventors: Hans Georg Grablowitz, Thomas Feller, Thomas Michaelis
  • Publication number: 20120121902
    Abstract: The present invention relates to novel aqueous polyurethane dispersions produced using at least two poly(tetramethylene glycol) polyether polyols with different average molar masses and at least two different polyisocyanate components.
    Type: Application
    Filed: June 1, 2010
    Publication date: May 17, 2012
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Sebastian Dörr, Hans Georg Grablowitz, Thomas Feller, Thomas Michaelis
  • Publication number: 20110306727
    Abstract: The present invention relates to aqueous polymer dispersions having a core-shell structure, to a method for the production thereof and to the use thereof as a coating agent.
    Type: Application
    Filed: January 13, 2010
    Publication date: December 15, 2011
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Hans Georg Grablowitz, Rolf Gertzmann, Dirk Achten, Maria Almato Guiteras, Joan Miguel Garcia Martinez