Patents by Inventor Lutz Liebehentschel

Lutz Liebehentschel 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).

  • Composition for the production of hydrophilic polystyrene
    Patent number: 9902834
    Abstract: The invention relates to a composition Z comprising a component B, a component C, a component D, a component E and a component P, wherein the component B is a polyethylene glycol, the component C is a polyglycerol ester, the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: February 27, 2018
    Assignee: CLARIANT INTERNATIONAL LTD.
    Inventors: Pirko Kolditz, Lutz Liebehentschel
  • Composition for the production of hydrophilic polystyrene material
    Patent number: 9359496
    Abstract: The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: June 7, 2016
    Assignee: Clariant International Ltd.
    Inventors: Pirko Kolditz, Lutz Liebehentschel
  • Composition For The Production Of Hydrophilic Polystyrene
    Publication number: 20150118427
    Abstract: The invention relates to a composition Z comprising a component B, a component C, a component D, a component E and a component P, wherein the component B is a polyethylene glycol, the component C is a polyglycerol ester, the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.
    Type: Application
    Filed: April 17, 2013
    Publication date: April 30, 2015
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Pirko Kolditz, Lutz Liebehentschel
  • Composition For The Production Of Hydrophilic Polystyrene Material
    Publication number: 20150087735
    Abstract: The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.
    Type: Application
    Filed: April 17, 2013
    Publication date: March 26, 2015
    Applicant: Clariant Finance (BVI) Limited
    Inventors: Pirko Kolditz, Lutz Liebehentschel