Patents by Inventor Andrea Heuschen

Andrea Heuschen 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: 10221200
    Abstract: The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of VOCs. The invention further relates to their use, preferably in the production of inkjet photographic papers.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 5, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Wassmer, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Andrea Heuschen
  • Patent number: 9796738
    Abstract: The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of VOCs. The invention further relates to their use, preferably in the production of inkjet photographic papers.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: October 24, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Waβmer, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Andrea Heuschen
  • Publication number: 20170233416
    Abstract: The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of VOCs. The invention further relates to their use, preferably in the production of inkjet photographic papers.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christian WASSMER, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Andrea Heuschen
  • Patent number: 8980960
    Abstract: Process for preparing a dispersion comprising silicon dioxide particles and cationizing agents, by dispersing 50 to 75 parts by weight of water, 25 to 50 parts by weight of silicon dioxide particles having a BET surface area of 30 to 500 m2/g and 100 to 300 ?g of cationizing agent per square meter of the BET surface area of the silicon dioxide particles, wherein the cationizing agent is obtainable by reacting at least one haloalkyl-functional alkoxysilane, hydrolysis products, condensation products and/or mixtures thereof with at least one aminoalcohol and water; and optionally removing the resulting hydrolysis alcohol from the reaction mixture. Also the process for preparing the dispersion, wherein the cationizing agent comprises one or more quaternary, aminoalcohol-functional, organosilicon compounds of formula III and/or condensation products thereof, wherein Ru and Rv are independently C2-4 alkyl group, m is 2-5 and n is 2-5.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: March 17, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Stefan Scharfe, Andrea Heuschen, Christoph Batz-Sohn, Burkhard Standke, Christian Wassmer, Heinz Lach
  • Patent number: 8747541
    Abstract: Dispersion obtainable by reacting a) in 50 to 75 parts by weight of water b) 25 to 50 parts by weight of silica particles having a BET surface area of 30 to 500 m2/g and c) 100 to 300 ?g/m2 BET surface area of the silica particles from b) parts by weight of one or more aminofunctional, organosilicon compounds, the aminofunctional, organosilicon compound being a quaternary, aminofunctional, organosilicon compound which is obtainable by reacting at least one haloalkylfunctional silane as component A with a tertiary amine as component B in the presence of a defined amount of water and at least partly removing the resulting hydrolysis alcohol from the system.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: June 10, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Burkhard Standke, Christian Wassmer
  • Publication number: 20130167754
    Abstract: The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of VOCs. The invention further relates to their use, preferably in the production of inkjet photographic papers.
    Type: Application
    Filed: June 9, 2011
    Publication date: July 4, 2013
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christian Wassmer, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Andrea Heuschen
  • Publication number: 20130040078
    Abstract: Process for preparing a dispersion comprising silicon dioxide particles and cationizing agents, by dispersing 50 to 75 parts by weight of water, 25 to 50 parts by weight of silicon dioxide particles having a BET surface area of 30 to 500 m2/g and 100 to 300 ?g of cationizing agent per square metre of the BET surface area of the silicon dioxide particles, wherein the cationizing agent is obtainable by reacting at least one haloalkyl-functional alkoxysilane, its hydrolysis products or condensation products and/or a mixture thereof with at least one aminoalcohol and a defined amount of water and optionally removing the resulting hydrolysis alcohol at least partly from the reaction mixture.
    Type: Application
    Filed: May 23, 2011
    Publication date: February 14, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Stefan Scharfe, Andrea Heuschen, Christoph Batz-Sohn, Burkhard Standke, Christian Wassmer, Heinz Lach
  • Publication number: 20120006228
    Abstract: Dispersion obtainable by reacting a) in 50 to 75 parts by weight of water b) 25 to 50 parts by weight of silica particles having a BET surface area of 30 to 500 m2/g and c) 100 to 300 ?g/m2 BET surface area of the silica particles from b) parts by weight of one or more aminofunctional, organosilicon compounds, the aminofunctional, organosilicon compound being a quaternary, aminofunctional, organosilicon compound which is obtainable by reacting at least one haloalkylfunctional silane as component A with a tertiary amine as component B in the presence of a defined amount of water and at least partly removing the resulting hydrolysis alcohol from the system.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 12, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Burkhard Standke, Christian Wassmer
  • Patent number: 8092587
    Abstract: The invention relates to stabilized dispersions of precipitated silicon dioxide, to a process for production thereof and to the use thereof, especially for production of paper coatings for glossy photo paper for inkjet printing.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: January 10, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Florian Zschunke, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Juergen Behnisch, Markus Ruf, Guenter Stein, Tobias Banert
  • Publication number: 20110179970
    Abstract: The invention relates to stabilized dispersions of precipitated silicon dioxide, to a process for production thereof and to the use thereof, especially for production of paper coatings for glossy photo paper for inkjet printing.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 28, 2011
    Inventors: Florian Zschunke, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Jürgen Behnisch, Markus Ruf, Günter Stein, Tobias Banert