Patents by Inventor Christopher KUPKA

Christopher KUPKA 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: 20230272144
    Abstract: The present invention relates an emulsifier stabilized formulated copolymer dispersion, processes for forming the emulsifier stabilized formulated copolymer dispersion, and to uses thereof. The emulsifier stabilized formulated copolymer dispersion may be formed by polymerizing at least one monomer in the presence of a stabilizer package, to form an emulsifier stabilizer copolymer dispersion, and introducing a post-addition comprising a polyvinyl alcohol solution to the emulsifier stabilized copolymer dispersion to form an emulsifier stabilized formulated copolymer dispersion. The polyvinyl alcohol, added as solution, may be added in an amount from 1 to 10 % by weight, solid polyvinyl alcohol based on solids content of the emulsifier stabilized copolymer dispersion. The polyvinyl alcohol may have a molecular weight expressed as viscosity from 3 mPa·s to 60 mPa·s based on a 4 % solution at 20° C. and a degree of hydrolysis from 70 mol.% to 85 mol.%, preferably from 78 mol.% to 82 mol.%, more preferably 80 mol.
    Type: Application
    Filed: September 14, 2020
    Publication date: August 31, 2023
    Applicant: Celanese International Corporation
    Inventors: Harmin MÜLLER, Christopher KUPKA