Patents by Inventor Anna Weber

Anna Weber 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: 12187623
    Abstract: Process for producing a haematite pigment having an a* value greater than 20, especially greater than 25, CIELAB units measured as a full shade in alkyd resin to DIN EN ISO 787-25:2007, by reacting iron sulfate with oxygen in the presence of a pigment seed, characterized in that a) water comprising i) at least one pigment seed selected from the group consisting of FeOOH and Fe2O3 and ii) iron sulfate forms an initial charge and b) at least one alkaline earth metal carbonate, especially CaCO3, MgCO3, CaMg(CO3)2 or mixtures thereof and c) oxygen-containing gas are added to the initial charge, where at least 95% by weight of the total amount of iron sulfate used in the process is present in the initial charge a) prior to addition of components b) and c).
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: January 7, 2025
    Assignee: LANXESS Deutschland GmbH
    Inventors: Larissa Schaufler, Anna Weber-Czaplik, Carsten Rosenhahn, Christine Kathrein
  • Publication number: 20250002894
    Abstract: A composition comprising a solid carrier, wherein a surface of the solid carrier comprises an organosilane with a proviso that the organosilane is not an aminosilane, or wherein the surface of the solid carrier comprises at least two organosilanes which are different from each other; a functional constituent; and a protective layer to protect the functional constituent. A method of producing the composition and uses of the composition.
    Type: Application
    Filed: November 17, 2022
    Publication date: January 2, 2025
    Inventors: Rita CORRERO, Carolina GIUNTA, Lars GROSSNIKLAUS, Anna WEBER, Manon BRIAND
  • Patent number: 11326018
    Abstract: A method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound (A) with an epoxide compound (B) in the presence of a catalyst (C), wherein the isocyanate compound (A) comprises a isocyanate compound (A1) wherein the a isocyanate compound (A1) comprising at least two isocyanate groups (I1?2), preferred two isocyanate groups (I1=2), wherein the epoxide compound (B) comprises a epoxide compound (B1) and an epoxide compound (B2), wherein the epoxide compound (B2) is different from the epoxide compound (B1) wherein the epoxide compound (B1) comprising at least two terminal epoxide groups (F1?2), preferred two terminal epoxide groups (F1=2), linked together by a linking group (L1) and the epoxide compound (B2) comprising at least two terminal epoxide groups (F2?2)), preferred two terminal epoxide groups (F2=2), linked together by a linking group (L2), wherein the linking group (L2) comprises acyclic and covalent bonds to each other free of conjugated multiple bond
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 10, 2022
    Assignee: Covestro Deutschland AG
    Inventors: Anna Weber, Claudine Rangheard, Michael Kessler, Walter Leitner, Christoph Gürtler, Carsten Koopmans, Thomas Ernst Müller
  • Publication number: 20220073366
    Abstract: Process for producing a haematite pigment having an a* value greater than 20, especially greater than 25, CIELAB units measured as a full shade in alkyd resin to DIN EN ISO 787-25:2007, by reacting iron sulfate with oxygen in the presence of a pigment seed, characterized in that a) water comprising i) at least one pigment seed selected from the group consisting of FeOOH and Fe2O3 and ii) iron sulfate forms an initial charge and b) at least one alkaline earth metal carbonate, especially CaCO3, MgCO3, CaMg(CO3)2 or mixtures thereof and c) oxygen-containing gas are added to the initial charge, where at least 95% by weight of the total amount of iron sulfate used in the process is present in the initial charge a) prior to addition of components b) and c).
    Type: Application
    Filed: January 15, 2020
    Publication date: March 10, 2022
    Applicant: LANXESS Deutschland GmbH
    Inventors: Larissa Schaufler, Anna Weber-Czaplik, Carsten Rosenhahn, Christine Kathrein
  • Publication number: 20210284785
    Abstract: A method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound (A) with an epoxide compound (B) in the presence of a catalyst (C), wherein the isocyanate compound (A) comprises a isocyanate compound (A1) wherein the a isocyanate compound (A1) comprising at least two isocyanate groups (I1?2), preferred two isocyanate groups (I1=2), wherein the epoxide compound (B) comprises a epoxide compound (B1) and an epoxide compound (B2), wherein the epoxide compound (B2) is different from the epoxide compound (B1) wherein the epoxide compound (B1) comprising at least two terminal epoxide groups (F1?2), preferred two terminal epoxide groups (F1=2), linked together by a linking group (L1) and the epoxide compound (B2) comprising at least two terminal epoxide groups (F2?2)), preferred two terminal epoxide groups (F2=2), linked together by a linking group (L2), wherein the linking group (L2) comprises acyclic and covalent bonds to each other free of conjugated multiple bond
    Type: Application
    Filed: August 16, 2017
    Publication date: September 16, 2021
    Inventors: Anna WEBER, Claudine RANGHEARD, Michael KESSLER, Walter LEITNER, Christoph GÜRTLER, Carsten KOOPMANS, Thomas Ernst MÜLLER
  • Publication number: 20170088659
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds with low colour intensity, comprising the step of reacting an isocyanate compound with an epoxide compound in the presence of a catalyst which is free of halide anions. The invention further relates to a method for the production of oligooxazolidinone and/or polyoxazolidinone compounds, comprising the step of reacting a polyisocyanate compound with a polyepoxide compound in the presence of said catalyst. The invention further relates to oligooxazolidinone and/or polyoxazolidinone compounds with low colour intensity, obtainable by a method according to the invention.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 30, 2017
    Applicant: Covestro Deutschland AG
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, Anna Weber, Henning Vogt, Walter Leitner
  • Publication number: 20170081459
    Abstract: The present invention relates to a method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound, preferably a diisocyanate compound with an epoxide compound, preferably a diepoxide compound. The invention further relates to a polyoxazolidinone compound obtainable by said method, a polymeric resin obtainable by reacting a polymeric compound according to the invention with a cross linking compound and the use of a polymeric resin according to the invention as a coating, additive and composite material.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 23, 2017
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, Anna Weber, Walter Leitner