Patents by Inventor Ester Elisabeth Antonia KEIJZER

Ester Elisabeth Antonia KEIJZER 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).

  • METHANOL-FREE ORGANIC PEROXIDE EMULSION
    Publication number: 20240352301
    Abstract: An emulsion includes: a) 25-70 wt. % di-n-butyl peroxydicarbonate or di-sec-butyl peroxydicarbonate, b) a polyvinyl acetate having a degree of hydrolysis of 50-90 mole %, c) at least one emulsifier, d) at least one cyclohexane dicarboxylate ester, e) ethanol, f) at least one C2-C6 monohydric or polyhydric alcohol different to e), and g) water.
    Type: Application
    Filed: April 18, 2024
    Publication date: October 24, 2024
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: René GERRITSEN, Koen Antoon Kornelis VANDUFFEL, Ester Elisabeth Antonia KEIJZER
  • Storage stable aqueous organic peroxide emulsions
    Patent number: 11059779
    Abstract: Aqueous emulsion comprising: —25-70 wt % organic peroxide, based on the weight of the emulsion, —a cyclohexane dicarboxylate ester, and —water. This emulsion is storage stable and can be used for the production of polymers, in particular PVC, that come into contact with food products.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 13, 2021
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: René Gerritsen, Richard Hermannes Johannes Hekkert, Ester Elisabeth Antonia Keijzer
  • STORAGE STABLE AQUEOUS ORGANIC PEROXIDE EMULSIONS
    Publication number: 20190071397
    Abstract: Aqueous emulsion comprising: —25-70 wt % organic peroxide, based on the weight of the emulsion, —a cyclohexane dicarboxylate ester, and —water. This emulsion is storage stable and can be used for the production of polymers, in particular PVC, that come into contact with food products.
    Type: Application
    Filed: March 14, 2017
    Publication date: March 7, 2019
    Inventors: René GERRITSEN, Richard Hermannes Johannes HEKKERT, Ester Elisabeth Antonia KEIJZER