Patents by Inventor Karel Hartlieb

Karel Hartlieb 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).

  • DISPERSANT
    Publication number: 20250034318
    Abstract: Disclosed herein is a polymer (D) obtained by reacting a) at least one epoxide (E) having an average functionality of ?3.0 and a number average molar weight in a range of from 250 to 25000 g/mol as determined according to GPC using THE as solvent; b) at least one compound (P) having at least one pigment affinic group, where the pigment affinic group has at least one active hydrogen reactive to an epoxide group; and c) at least one compound(S) having at least one poly alkyleneoxide chain, where the compound(S) having at least one active hydrogen reactive to an epoxide group. Further disclosed herein is a method of using the polymer (D) as an aqueous dispersant for pigments.
    Type: Application
    Filed: December 22, 2022
    Publication date: January 30, 2025
    Inventors: Chintankumar Jayantilal PATEL, Karel HARTLIEB, Holly Marie BLONDIN
  • Pigment dispersant for coating
    Patent number: 12043705
    Abstract: Described herein is a polymeric pigment dispersant, a process for preparation of the polymeric pigment dispersant and a pigment dispersion including the pigment dispersant that is used for coating and in printing ink, automotive basecoat, auto-motive clearcoat, mill base, furniture coatings and wood coatings.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 23, 2024
    Assignee: BASF COATINGS GMBH
    Inventors: Shampa R. Samanta, Chintankumar Patel, Qingling Zhang, Karel Hartlieb, Benjamin Georg Robert Mohr
  • PIGMENT DISPERSANT FOR COATING
    Publication number: 20210332194
    Abstract: Described herein is a polymeric pigment dispersant, a process for preparation of the polymeric pigment dispersant and a pigment dispersion including the pigment dispersant that is used for coating and in printing ink, automotive basecoat, auto-motive clearcoat, mill base, furniture coatings and wood coatings.
    Type: Application
    Filed: August 9, 2019
    Publication date: October 28, 2021
    Inventors: Shampa R. Samanta, Chintankumar Patel, Qingling Zhang, Karel Hartlieb, Benjamin Georg Robert Mohr