Patents by Inventor Olga ILIASHEVSKY

Olga ILIASHEVSKY 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).

  • Additives for protection of polymers against ultraviolet light
    Patent number: 11884797
    Abstract: The invention provides ultraviolet light absorber suitable for use as an additive in polymers, comprising particles of inorganic oxide having UV light-absorbing compound on their surface, wherein said UV light-absorbing compound is chemically bonded, either to a spacer provided on the surface of said particle, or directly to the surface of the particle. Process for preparing the additive absorber and a thermoplastic polymer (e.g., a film) comprising the absorber additive are also provided.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 30, 2024
    Assignee: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
    Inventors: Moshe Gottlieb, Olga Iliashevsky, Yafa Yagen
  • ADDITIVES FOR PROTECTION OF POLYMERS AGAINST ULTRAVIOLET LIGHT
    Publication number: 20220081537
    Abstract: The invention provides ultraviolet light absorber suitable for use as an additive in polymers, comprising particles of inorganic oxide having UV light-absorbing compound on their surface, wherein said UV light-absorbing compound is chemically bonded, either to a spacer provided on the surface of said particle, or directly to the surface of the particle. Process for preparing the additive absorber and a thermoplastic polymer (e.g., a film) comprising the absorber additive are also provided.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
    Inventors: Moshe Gottlieb, Olga Iliashevsky, Yafa Yagen
  • Additives for protection of polymers against ultraviolet light
    Patent number: 11225564
    Abstract: The invention provides ultraviolet light absorber suitable for use as an additive in polymers, comprising particles of inorganic oxide having UV light-absorbing compound on their surface, wherein said UV light-absorbing compound is chemically bonded, either to a spacer provided on the surface of said particle, or directly to the surface of the particle. Process for preparing the additive absorber and a thermoplastic polymer (e.g., a film) comprising the absorber additive are also provided.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 18, 2022
    Assignee: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
    Inventors: Moshe Gottlieb, Olga Iliashevsky, Yafa Yagen
  • ADDITIVES FOR PROTECTION OF POLYMERS AGAINST ULTRAVIOLET LIGHT
    Publication number: 20190048169
    Abstract: The invention provides ultraviolet light absorber suitable for use as an additive in polymers, comprising particles of inorganic oxide having UV light-absorbing compound on their surface, wherein said UV light-absorbing compound is chemically bonded, either to a spacer provided on the surface of said particle, or directly to the surface of the particle. Process for preparing the additive absorber and a thermoplastic polymer (e.g., a film) comprising the absorber additive are also provided.
    Type: Application
    Filed: February 27, 2017
    Publication date: February 14, 2019
    Applicant: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
    Inventors: Moshe GOTTLIEB, Olga ILIASHEVSKY, Yafa YAGEN