Patents by Inventor Astrid RUDOLFI

Astrid RUDOLFI 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).

  • Publication number: 20230141337
    Abstract: The invention relates to a comb polymer having repeating units of at least one of the structures of formulae (I) to (IV) wherein R1 represents a polyoxyalkylene group and A represents an organic group, and wherein the comb polymer has end groups of the general formula (V) wherein R2 and R3 independent of each other are selected from a) organic groups having 1 to 24 carbon atoms and b) R1.
    Type: Application
    Filed: March 4, 2021
    Publication date: May 11, 2023
    Inventors: Ina Van Kamp, Andreas Okkel, Sandra Sabrina Meyer, Astrid Rudolfi
  • Publication number: 20230095096
    Abstract: The invention relates to block copolymer comprising i) A first block wherein at least 65 mol-% of the repeating units of the first block are repeating units of the formula (I)—[CH2—CH2—O]—, ii) A second block wherein at least 90 mol-% of the repeating units of the second block are repeating units of at least one of formulae (II) or (III), wherein the groups R1, R2, and R3 independent of each occurrence are selected from hydrocarbyl groups having 1 to 40 carbon atoms, which are optionally substituted by ether or hydroxyl groups, and wherein the groups R1 and R2 are optionally linked to each other such that a nitrogen heterocyclic structure is present, iii) A third block which is different from the first block and the second block and which is more hydrophobic than the first block.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 30, 2023
    Inventors: Daniel Leibig, Holger Frey, Patrick Verkoyen, Astrid Rudolfi, Udo Krappe, Jan Blankenburg, Guillaume Wojciech Jaunky
  • Patent number: 10301486
    Abstract: The invention relates to comb copolymers, which can be produced from at least one diglycidyl ether (A) of general formula (I), at least one polyether monoamine (B) of the general formula Rt—[OEt]n[OPr]m[OBu]s—NH2, at least one amine (C) of the general formula Z—R1—NH2, and optionally at least one secondary amine (D) that is free of primary amino groups and is of the general formula NHTV, wherein R stands for a residue free of epoxy groups, selected from aliphatic residues, aromatic residues, and araliphatic residues; Rt stands for a residue selected from alkyl residues having 1 to 6 carbon atoms; OEt stands for an ethylene oxide residue, OPr stands for a propylene oxide residue, and OBu stands for a butylene oxide residue; n stands for a number from 0 to 100, m stands for a number from 3 to 50, and s stands for a number from 0 to 20, and n+m+s=3 to 103; R1 stands for an aliphatic, aromatic, or araliphatic hydrocarbon residue having 1 to 12 carbon atoms; Z stands for a residue free of primary and secondary ami
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 28, 2019
    Assignee: BYK-Chemie GmbH
    Inventors: Bernd Göbelt, Jürgen Omeis, Andreas Okkel, Marcus Meichsner, Astrid Rudolfi
  • Publication number: 20170292030
    Abstract: The invention relates to comb copolymers, which can be produced from at least one diglycidyl ether (A) of general formula (I), at least one polyether monoamine (B) of the general formula Rt—[OEt]n[OPr]m[OBu]s—NH2, at least one amine (C) of the general formula Z—R1—NH2, and optionally at least one secondary amine (D) that is free of primary amino groups and is of the general formula NHTV, wherein R stands for a residue free of epoxy groups, selected from aliphatic residues, aromatic residues, and araliphatic residues; Rt stands for a residue selected from alkyl residues having 1 to 6 carbon atoms; OEt stands for an ethylene oxide residue, OPr stands for a propylene oxide residue, and OBu stands for a butylene oxide residue; n stands for a number from 0 to 100, m stands for a number from 3 to 50, and s stands for a number from 0 to 20, and n+m+s=3 to 103; R1 stands for an aliphatic, aromatic, or araliphatic hydrocarbon residue having 1 to 12 carbon atoms; Z stands for a residue free of primary and secondary ami
    Type: Application
    Filed: October 13, 2015
    Publication date: October 12, 2017
    Inventors: Bernd GÖBELT, Jürgen OMEIS, Andreas OKKEL, Marcus MEICHSNER, Astrid RUDOLFI