Patents by Inventor Daniel P. Malek

Daniel P. Malek 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).

  • Reactive additives in membrane preparation
    Patent number: 12370501
    Abstract: The present disclosure provides a process for producing a modified microporous membrane, comprising (i) Providing a first solution comprising at least one first polymer and at least one epoxy functional compound; (ii) Providing a second solution comprising at least one diamine compound; (iii) Bringing the first solution and the second solution into contact, thereby obtaining a modified microporous membrane comprising at least one first polymer and the crosslinked reaction product of the at least one epoxy functional compound and the at least one diamine compound; wherein the modified microporous membrane is a hollow-fiber membrane; and wherein the first solution is a dope solution, the second solution is a bore solution, and bringing the first and second solutions into contact takes place in a spinneret.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: July 29, 2025
    Assignee: Solventum Intellectual Properties Company
    Inventors: Frank Schneider, Stefan Weuster, Daniel P. Malek, Mathias Stroschke
  • FILTRATION MEMBRANE FROM A BLEND COMPRISING POLYSULFONE AND POLYOXAZOLINE AND METHOD MAKING THEREOF
    Publication number: 20240082790
    Abstract: An asymmetric membrane. The asymmetric membrane includes a membrane wall with a first and a second porous surface and an interior situated between the surfaces; a first asymmetrical region towards the first surface; a second asymmetrical region towards the second surface; wherein the asymmetric membrane is made from a polymeric blend comprising an aromatic sulfone polymer and poly (2-oxazoline); and wherein the asymmetric membrane is in the form of a flat sheet.
    Type: Application
    Filed: March 10, 2022
    Publication date: March 14, 2024
    Inventors: Ramona Osterloh, Daniel P. Malek, Mathias Stroschke, Bartlomiej Kowalczyk, Christian Krumm, Oliver Schuster, Pierre-Alexandre Bourgeois, Manfred Trussner
  • REACTIVE ADDITIVES IN MEMBRANE PREPARATION
    Publication number: 20220203308
    Abstract: The present disclosure provides a process for producing a modified microporous membrane, comprising (i) Providing a first solution comprising at least one first polymer and at least one epoxy functional compound; (ii) Providing a second solution comprising at least one diamine compound; (iii) Bringing the first solution and the second solution into contact, thereby obtaining a modified microporous membrane comprising at least one first polymer and the crosslinked reaction product of the at least one epoxy functional compound and the at least one diamine compound; wherein the modified microporous membrane is a hollow-fiber membrane; and wherein the first solution is a dope solution, the second solution is a bore solution, and bringing the first and second solutions into contact takes place in a spinneret.
    Type: Application
    Filed: June 23, 2020
    Publication date: June 30, 2022
    Inventors: Frank Schneider, Stefan Weuster, Daniel P. Malek, Mathias Stroschke