Patents by Inventor Paula MARTIREZ

Paula MARTIREZ 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).

  • THERMALLY EXPANDABLE CELLULOSE-BASED MICROSPHERES
    Publication number: 20220363859
    Abstract: The disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a blowing agent-containing hollow core, the polymer shell comprising a carboxylate-functionalised cellulose having a glass transition temperature (Tg) of at least about 125° C. The disclosure also relates to a method for preparing such thermally expandable microspheres, comprising mixing an aqueous phase that optionally comprises an emulsifier with an organic phase that comprises an organic solvent, a blowing agent and a carboxylate-functionalised cellulose having a Tg of at about least 125° C., to form a microsphere dispersion.
    Type: Application
    Filed: November 12, 2019
    Publication date: November 17, 2022
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Bo ANDREASSON, Roel WIJTMANS, Anna LARSSON-KRON, Malin FROM, Ana LÓPEZ CABEZAS, Marcus RUDA, Paula MARTIREZ