Patents by Inventor David Jepson

David Jepson 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).

  • POLYHYDROXYLATED PHOTOINITIATORS
    Publication number: 20250074868
    Abstract: The present invention relates to novel photoinitiators having hydroxyl groups and/or (meth)acrylate groups. The invention also relates to compositions comprising these photoinitiators as well as their use for photopolymerizing ethylenically unsaturated compounds.
    Type: Application
    Filed: December 19, 2022
    Publication date: March 6, 2025
    Inventors: David JEPSON, Kelly SQUIRES, Petr SEHNAL, Richard PLENDERLEITH, Kevin DEMOULIN, Philippe CICERON, Pierre MELEC
  • Amine co-initiator mixture
    Patent number: 12146010
    Abstract: The invention relates to a co-initiator comprising the aminobenzoate derivative according to Formula (I) and at least one ancillary amine, wherein the reactivity and solubility of said co-imitator in UV-curable resins is sufficiently high that the co-initiator can be used in UV radiation curing processes. Formula (I) wherein R1 and R2 independently represent methyl or ethyl groups; and j, k, l and m are independently 0 to 20.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: November 19, 2024
    Assignee: Arkema France
    Inventors: David Jepson, Richard Plenderleith, Kelly Squires, Andrew Towns, Petr Sehnal
  • TYPE-II PHOTOINITIATORS
    Publication number: 20240166621
    Abstract: The present invention relates to novel Norrish Type II photoinitiators which may be liquid or easily solubilized at room temperature. The invention also relates to compositions comprising these photoinitiators as well as their use for photopolymerizing ethylenically unsaturated compounds or solubilizing other photoinitiators.
    Type: Application
    Filed: October 11, 2021
    Publication date: May 23, 2024
    Inventors: David Jepson, Kelly Squires, Richard Plenderleith
  • AMINE CO-INITIATOR MIXTURE
    Publication number: 20240141078
    Abstract: The invention relates to a co-initiator comprising the aminobenzoate derivative according to Formula (I) and at least one ancillary amine, wherein the reactivity and solubility of said co-imitator in UV-curable resins is sufficiently high that the co-initiator can be used in UV radiation curing processes. Formula (I) wherein R1 and R2 independently represent methyl or ethyl groups; and j, k, l and m are independently 0 to 20.
    Type: Application
    Filed: October 16, 2020
    Publication date: May 2, 2024
    Inventors: David Jepson, Richard Plenderleith, Kelly SQUIRES, Andrew Towns, Petr SEHNAL
  • Acrylamide photoinitiators
    Patent number: 11685708
    Abstract: Acrylamide photoinitiators are provided, in which a photoinitiator moiety and an acrylamide are incorporated into the photoinitiator structure.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 27, 2023
    Assignee: Coloplast A/S
    Inventors: Jakob Vange, Petr Sehnal, David Jepson, Andrew Towns
  • Amide and imide photoinitiators
    Patent number: 11034779
    Abstract: Polymers are provided, in which a pendant photoinitiator moiety is linked to the polymer structure via an amide or a succinimide.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: June 15, 2021
    Assignee: Coloplast A/S
    Inventors: Carsten Høj, Niels Joergen Madsen, Petr Sehnal, David Jepson, Andrew Towns
  • ACRYLAMIDE PHOTOINITIATORS
    Publication number: 20210171438
    Abstract: Acrylamide photoinitiators are provided, in which a photoinitiator moiety and an acrylamide are incorporated into the photoinitiator structure.
    Type: Application
    Filed: September 25, 2020
    Publication date: June 10, 2021
    Inventors: Jakob Vange, Petr Sehnal, David Jepson, Andrew Towns
  • Acrylamide photoinitiators
    Patent number: 10851045
    Abstract: Acrylamide photoinitiators are provided, in which a photoinitiator moiety and an acrylamide are incorporated into the photoinitiator structure.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: December 1, 2020
    Assignee: Coloplast A/S
    Inventors: Jakob Vange, Petr Sehnal, David Jepson, Andrew Towns
  • AMIDE AND IMIDE PHOTOINITIATORS
    Publication number: 20200231715
    Abstract: Polymers are provided, in which a pendant photoinitiator moiety is linked to the polymer structure via an amide or a succinimide.
    Type: Application
    Filed: August 16, 2018
    Publication date: July 23, 2020
    Inventors: Carsten HØJ, Niels Joergen MADSEN, Petr SEHNAL, David JEPSON, Andrew TOWNS
  • ACRYLAMIDE PHOTOINITIATORS
    Publication number: 20200109106
    Abstract: Acrylamide photoinitiators are provided, in which a photoinitiator moiety and an acrylamide are incorporated into the photoinitiator structure.
    Type: Application
    Filed: March 22, 2018
    Publication date: April 9, 2020
    Inventors: Jakob Vange, Petr Sehnal, David Jepson, Andrew Towns