Patents by Inventor Ludwik S. Cygan

Ludwik S. Cygan 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: 20230250324
    Abstract: A two-component solventless adhesive composition including: (A) at least one isocyanate component formulated for application to a first substrate comprising either at least one aromatic-based isocyanate, or a blend of: (Ai) at least one aromatic-based isocyanate; and (Aii) at least one aliphatic-based isocyanate; and (B) at least one isocyanate-reactive component formulated for application to a second substrate comprising a blend of: (Bi) at least one amine-initiated polyol comprising two or more primary hydroxyl groups and a backbone incorporating tertiary amines; (Bii) at least one hydroxyl terminated polyurethane polyol; (Biii) at least one phosphate ester polyol; (Biv) at least one polyester polyol; (Bv) at least one polyether polyol and (Bvi) optionally, at least one silane adhesion promoter; and a process for preparing the above two-component solventless adhesive composition; and a laminate structure made using the above two-component solventless adhesive composition.
    Type: Application
    Filed: June 21, 2021
    Publication date: August 10, 2023
    Inventors: Jie Wu, Amira A. Marine, Daniele Vinci, Thorsten Schmidt, Ludwik S. Cygan, Marco Frasconi
  • Patent number: 11584829
    Abstract: Methods for preparing waterborne heat seal coating compositions are disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a first mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the second mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the second mixing apparatus to form the waterborne heat seal coating composition.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 21, 2023
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
    Inventors: Carlos A. Escobar Marin, Amit K. Chaudhary, Yinzhong Guo, James M. Lipovsky, Ludwik S. Cygan, Liang Chen
  • Publication number: 20220351980
    Abstract: Methods and apparatus for etching a high aspect ratio feature in a stack on a substrate are provided. The feature may be formed in the process of forming a 3D NAND device. Typically, the stack includes alternating layers of material such as silicon oxide and silicon nitride or silicon oxide and polysilicon. WF6 is provided in the etch chemistry, which substantially reduces or eliminates problematic sidewall notching. Advantageously, this improvement in sidewall notching does not introduce other tradeoffs such as increased bowing, decreased selectivity, increased capping, or decreased etch rate.
    Type: Application
    Filed: March 2, 2020
    Publication date: November 3, 2022
    Inventors: Douglas Hasso, Yinzhong Guo, James M. Lipovsky, Ludwik S. Cygan, Carlos A. Escobar Marin, Joseph Jacobs
  • Patent number: 11414578
    Abstract: Solvent-based adhesive compositions are disclosed herein. In some embodiments, the solvent-based adhesive compositions include (A) an isocyanate component comprising an isocyanate curing agent and (B) a hydroxyl component comprising a polyester polyol, a polyether polyol, and a phosphate ester compound. The isocyanate curing agent of the isocyanate component (A) crosslinks the components of the hydroxyl component. In some embodiments, the phosphate ester compound has the structure (I): (I) wherein R1 is any organic group. Methods for preparing solvent-based adhesive compositions are also disclosed.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 16, 2022
    Assignees: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
    Inventors: Wenwen Li, Joseph J. Zupancic, Ludwik S. Cygan
  • Publication number: 20200392297
    Abstract: Methods for preparing waterborne heat seal coating compositions are disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a first mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the second mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the second mixing apparatus to form the waterborne heat seal coating composition.
    Type: Application
    Filed: August 23, 2018
    Publication date: December 17, 2020
    Inventors: Carlos A. Escobar Marin, Amit K. Chaudhary, Yinzhong Guo, James M. Lipovsky, Ludwik S. Cygan, Liang Chen
  • Publication number: 20200248053
    Abstract: Solvent-based adhesive compositions are disclosed herein. In some embodiments, the solvent-based adhesive compositions include (A) an isocyanate component comprising an isocyanate curing agent and (B) a hydroxyl component comprising a polyester polyol, a polyether polyol, and a phosphate ester compound. The isocyanate curing agent of the isocyanate component (A) crosslinks the components of the hydroxyl component. In some embodiments, the phosphate ester compound has the structure (I): (I) wherein R1 is any organic group. Methods for preparing solvent-based adhesive compositions are also disclosed.
    Type: Application
    Filed: June 28, 2018
    Publication date: August 6, 2020
    Inventors: Wenwen Li, Joseph J. Zupancic, Ludwik S. Cygan