Patents by Inventor Waldemar CZAPLIK

Waldemar CZAPLIK 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).

  • Preparation of red iron oxide pigment
    Patent number: 11104807
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process) and apparatuses for carrying out the process.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 31, 2021
    Assignee: LANXESS Deutschland GmbH
    Inventors: Waldemar Czaplik, Udo Holtmann
  • PREPARATION OF RED IRON OXIDE PIGMENT
    Publication number: 20200299515
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process) and apparatuses for carrying out the process.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 24, 2020
    Applicant: LANXESS Deutschland GmbH
    Inventors: Waldemar CZAPLIK, Udo HOLTMANN
  • Red iron-oxide pigments with improved colour values
    Patent number: 10563066
    Abstract: The present invention relates to iron oxide red pigments having improved color values, a process for producing these improved iron oxide red pigments by the Penniman red process using nitrate (also referred to as nitrate process or direct red process) and an apparatus for the production thereof.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: February 18, 2020
    Assignee: LANXESS Deutschland GmbH
    Inventors: Waldemar Czaplik, Jurgen Kischkewitz, Stephan Spiegelhauer
  • Preparation of iron (III) oxide pigment
    Patent number: 10479893
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 19, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Waldemar Czaplik, Guido Ketteler, Jurgen Kischkewitz
  • PREPARATION OF RED IRON OXIDE PIGMENT
    Publication number: 20190119125
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process) and apparatuses for carrying out the process.
    Type: Application
    Filed: March 7, 2017
    Publication date: April 25, 2019
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventor: WALDEMAR CZAPLIK
  • USE OF RED IRON OXIDE PIGMENTS IN AQUEOUS PREPARATIONS
    Publication number: 20190071573
    Abstract: The present invention relates to the use of a haematite pigment whose sum of the a* values in full shade and with reduction in the surface coating test is from 58.0 to 61.0 CIELAB units, preferably from 58.0 to 60.0 CIELAB units, more preferably from 58.5 to 61.0 CIELAB units, more preferably from 58.5 to 60.0 CIELAB units, particularly preferably from 59.0 to 61.0 CIELAB units, more particularly preferably from 59.0 to 60.0 for producing an aqueous, titanium dioxide-containing preparation.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 7, 2019
    Applicant: LANXESS Deutschland GmbH
    Inventors: Stephan SPIEGELHAUER, Carsten ROSENHAHN, Waldemar CZAPLIK, Juergen KISCHKEWITZ
  • Production of red iron oxide pigment
    Patent number: 10221326
    Abstract: The present invention relates to an improved process for producing red iron oxide pigments by the Penniman process with nitrate (also called nitrate process or direct red process) and to apparatus for implementing this process, and also to the use of the plant for producing red iron oxide pigments by the Penniman process with nitrate.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: March 5, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Waldemar Czaplik, Juergen Kischkewitz, Wolfgang Oehlert, Huajun Li
  • PREPARATION OF IRON (III) OXIDE PIGMENT
    Publication number: 20170292024
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Application
    Filed: September 4, 2015
    Publication date: October 12, 2017
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WALDEMAR CZAPLIK, GUIDO KETTELER, JURGEN KISCHKEWITZ
  • PREPARATION OF IRON (III) OXIDE PIGMENTS
    Publication number: 20170267544
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Application
    Filed: September 4, 2015
    Publication date: September 21, 2017
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WALDEMAR CZAPLIK, GUIDO KETTELER, JURGEN KISCHKEWITZ
  • RED IRON-OXIDE PIGMENTS WITH IMPROVED COLOUR VALUES
    Publication number: 20170253745
    Abstract: The present invention relates to iron oxide red pigments having improved color values, a process for producing these improved iron oxide red pigments by the Penniman red process using nitrate (also referred to as nitrate process or direct red process) and an apparatus for the production thereof.
    Type: Application
    Filed: September 10, 2015
    Publication date: September 7, 2017
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WALDEMAR CZAPLIK, JURGEN KISCHKEWITZ, STEPHAN SPIEGELHAUER
  • PRODUCTION OF RED IRON OXIDE PIGMENT
    Publication number: 20160272836
    Abstract: The present invention relates to an improved process for producing red iron oxide pigments by the Penniman process with nitrate (also called nitrate process or direct red process) and to apparatus for implementing this process, and also to the use of the plant for producing red iron oxide pigments by the Penniman process with nitrate.
    Type: Application
    Filed: November 8, 2013
    Publication date: September 22, 2016
    Inventors: Waldemar CZAPLIK, Juergen KISCHKEWITZ, Wolfgang OEHLERT, Huajun LI