Patents by Inventor Kai-Uwe W. GAUDL

Kai-Uwe W. GAUDL 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).

  • Patent number: 11608445
    Abstract: The invention relates to photoactive oligomeric aminoketones for compositions and inks curable with ultraviolet (UV) light. The oligomeric ketones are particularly useful for printing or coating materials wherein a low migration of photoinitiators, and reduced transfer of ink from the printed to another surface are desired, such as, for example, food packaging.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: March 21, 2023
    Assignee: Sun Chemical Corporation
    Inventors: Jürgen Dieker, Kai-Uwe W. Gaudl
  • Publication number: 20220112384
    Abstract: The invention relates to photoactive oligomeric aminoketones for compositions and inks curable with ultraviolet (UV) light. The oligomeric ketones are particularly useful for printing or coating materials wherein a low migration of photoinitiators, and reduced transfer of ink from the printed to another surface are desired, such as, for example, food packaging.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 14, 2022
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Jürgen Dieker, Kai-Uwe W. Gaudl
  • Patent number: 11236213
    Abstract: The present invention provides water-soluble or water-dispersible polyester resins prepared by depolymerizing a terephthalate plastic material in an alcoholysis/glycolysis reaction, and re-polymerizing the product by reacting with a polybasic acid and/or anhydride. The polyester resins of the invention contain 70% to 95% by weight of the terephthalate material, based on the total weight of the composition. The polyester resins of the present invention are useful as dispersants, for example in pigment preparations, and as binders in let-down varnishes, inks, coatings, etc, and as adhesion promoters in aqueous-based inks.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: February 1, 2022
    Assignee: Sun Chemical Corporation
    Inventors: Jürgen Dieker, Robert Deighton, Kai-Uwe W. Gaudl, Leonora Nurcaj-Dreshaj
  • Publication number: 20210246282
    Abstract: The present invention provides water-soluble or water-dispersible polyester resins prepared by depolymerizing a tereph-thalate plastic material in an alcoholysis/glycolysis reaction, and re-polymerizing the product by reacting with a polybasic acid and/or anhydride. The polyester resins of the invention contain 70% to 95% by weight of the terephthalate material, based on the total weight of the composition. The polyester resins of the present invention are useful as dispersants, for example in pigment preparations, and as binders in let-down varnishes, inks, coatings, etc, and as adhesion promoters in aqueous-based inks.
    Type: Application
    Filed: January 6, 2020
    Publication date: August 12, 2021
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Jürgen Dieker, Robert Deighton, Kai-Uwe W. Gaudl, Leonora Nurcaj-Dreshaj
  • Patent number: 9938232
    Abstract: Amine derivatives of benzoylbenzoic acid, benzoylbenzoic acid esters and salts were prepared, which are suitable as photo initiators for UV & LED curable compositions. The derivatives are compounds of Formula I, Ia, and II wherein R1, R1a, R2, R3, n and r are as defined herein.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: April 10, 2018
    Assignee: SUN CHEMICAL CORPORATION
    Inventors: Kai-Uwe W. Gaudl, Juergen Dieker
  • Patent number: 9938231
    Abstract: 4-Arylbenzoyl benzoic acid esters, such as the ethylhexyl esters and amyl esters of 4-phenylbenzoyl benzoic acid, are described, which are liquid and show excellent solubility in acrylic or methacrylic monomers. Compounds of Formula 1, wherein R1, R2, and A are as defined herein, are disclosed. They are suitable as components for radical photoinitiator systems for UV-curable compositions.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: April 10, 2018
    Assignee: Sun Chemical Corporation
    Inventors: Kai-Uwe W. Gaudl, Juergen Dieker
  • Publication number: 20170044093
    Abstract: Amine derivatives of benzoylbenzoic acid, benzoylbenzoic acid esters and salts were prepared, which are suitable as photo initiators for UV & LED curable compositions. The derivatives are compounds of Formula I, Ia, and II wherein R1, R1a, R2, R3, n and r are as defined herein.
    Type: Application
    Filed: April 17, 2015
    Publication date: February 16, 2017
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Kai-Uwe W. GAUDL, Juergen DIEKER
  • Publication number: 20170029360
    Abstract: 4-Arylbenzoyl benzoic acid esters, such as the ethylhexyl esters and amyl esters of 4-phenylbenzoyl benzoic acid, are described, which are liquid and show excellent solubility in acrylic or methacrylic monomers. Compounds of Formula 1, wherein R1, R2, and A are as defined herein, are disclosed. They are suitable as components for radical photoinitiator systems for UV-curable compositions.
    Type: Application
    Filed: April 17, 2015
    Publication date: February 2, 2017
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Kai-Uwe W. GAUDL, Juergen DIEKER