Patents by Inventor Juergen Wiethan

Juergen Wiethan 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: 11401382
    Abstract: Thermoplastic polyamide particles comprising at least one polyamide and at least one polymeric ionic compound comprising imidazolium groups (imidazolium compound), the thermoplastic polyamide particles having an ellipsoidal or approximately ellipsoidal shape with the largest diameter of 1 to 100 mm, preferably 2 to 10 mm, more preferably 3 to 8 mm.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 2, 2022
    Assignee: BASF SE
    Inventors: Martina Schoemer, Jean-Pierre Berkan Lindner, Simon Kniesel, Juergen Wiethan
  • Publication number: 20190133125
    Abstract: Disclosed is a polymeric, ionic compound comprising at least 5 imidazolium groups, which compound is obtainable by simultaneously reacting glyoxal, formaldehyde, at least one C4-C8alkylene diamine, at least one protic acid, and a C8-C20alkylamine, especially by simultaneously reacting glyoxal, formaldehyde hexylene diamine, acetic acid and dodecylamine. The polymeric, ionic compound comprising at least 5 imidazolium groups shows advantageous antimicrobial properties, and may be used in various formulations for application fields including plant protection, personal care, home care, industrial or institutional or hospital disinfection, material protection, or pharmaceuticals.
    Type: Application
    Filed: August 4, 2016
    Publication date: May 9, 2019
    Inventors: Jürgen WIETHAN, Jean-Pierre Berkan LINDNER
  • Publication number: 20190127527
    Abstract: Thermoplastic polyamide particles comprising at least one polyamide and at least one polymeric ionic compound comprising imidazolium groups (imidazolium compound), the thermoplastic polyamide particles having an ellipsoidal or approximately ellipsoidal shape with the largest diameter of 1 to 100 mm, preferably 2 to 10 mm, more preferably 3 to 8 mm.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 2, 2019
    Inventors: Martina Schoemer, Jean-Pierre Berkan Lindner, Simon Kniesel, Juergen Wiethan
  • Patent number: 8013047
    Abstract: The instant invention relates to oligo- and poly-carbonates terminated with silicon containing groups which are useful as reducers of surface energy for organic materials such as polycarbonates, polyesters or polyketones or their mixtures, blends or alloys. Polymers with such reduced surface energy possess self-cleaning, anti-soiling, anti-graffiti, oil resistance, solvent resistance, chemical resistance, self-lubricating, scratch resistance, low moisture absorption, dirt pickup resistance, slip properties and a hydrophobic surface; and display anti-adhesion properties against proteins and against microorganisms such as for example, bacteria, fungi and algae.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: September 6, 2011
    Assignee: BASF SE Ludwigshafen
    Inventors: Fabien Jean Brand, Archana Kishore Desai, Michèle Gerster, Shrirang Bhikaji Hindalekar, Suhas Dattatraya Sahasrabudhe, Paragkumar Nathalal Thanki, Michael Tinkl, Andrea Preuss, Jürgen Wiethan, Kishor Prabhakar Kumbhar
  • Publication number: 20100010135
    Abstract: The instant invention relates to new compounds of the formula I wherein the general symbols are as defined in claim 1 and R1 and R2 are each independently of the other a silicon containing group. These new compounds of the formula I are useful as reducers of surface energy for organic materials such as polycarbonates, polyesters or polyketones or their mixtures, blends or alloys. Polymers with such a reduced surface energy possess an “easy to clean”, “self-cleaning” “antisoiling”, “soil-release” “antigraffiti”, “oil resistance”, “solvent resistance”, “chemical resistance”, “self lubricating”, “scratch resistance”, “low moisture absorption”, “dirt pickup resistance”, “slip properties” and “hydrophobic surface”; and antiadhesion properties against proteins and against microorganism such as for example bacteria, fungi and algae.
    Type: Application
    Filed: June 7, 2006
    Publication date: January 14, 2010
    Inventors: Fabien Jean Brand, Archana Kishore Desai, Michèle Gerster, Shrirang Bhikaji Hindalekar, Suhas Dattatraya Sahasrabudhe, Paragkumar Nathalal Thanki, Michael Tinkl, Andrea Preuss, Jürgen Wiethan, Kishor Prabhakar Kumbhar
  • Patent number: 7618697
    Abstract: Carboxylic acid ester derivatives of zosteric acid are effective in preventing biofouling and are readily formulated into coatings or films. Coating or film compositions of the esters, and methods for their application, are provided which reduce the dissolution of the esters into water or loss to the environment. The Zosteric acid esters of the invention appear to function by preventing adhesion of an organism to a surface rather than by acute toxic activity rendering said compositions more environmentally acceptable.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 17, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stewart Todd Elder, Fadi Khawam, Andrea Preuss, Jürgen Wiethan