Patents by Inventor Kwang-Yol Park

Kwang-Yol Park 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).

  • Heat-activated adhesive tape having an acrylic foam-like backing
    Patent number: 6841234
    Abstract: Heat-activated adhesive tape has a backing comprising 88-92% acrylic polymer containing: 35-45% of a first alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 30-40% of a second alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 6-10% a first monoethylenically unsaturated polar copolymerizable monomer, 1-2% a second monoethylenically unsaturated polar copolymerizable monomer, 0.3-0.5% photoinitiator, 1-2% filler, 0.05-0.07% crosslinker/chain extender, and 8-12% hollow glass microspheres; and heat-activated adhesive layer on at least one side. A pressure-sensitive adhesive may be on the other side.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: January 11, 2005
    Assignee: Scapa Tapes North America Inc.
    Inventors: Ramesh Lhila, Kwang-Yol Park, Kaila Delpozzo, Jian Ling Ding
  • Heat-activated adhesive tape having an acrylic foam-like backing
    Publication number: 20020028326
    Abstract: Heat-activated adhesive tape has a backing comprising 88-92% acrylic polymer containing: 35-45% of a first alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 30-40% of a second alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 6-10% a first monoethylenically unsaturated polar copolymerizable monomer, 1-2% a second monoethylenically unsaturated polar copolymerizable monomer, 0.3-0.5% photoinitiator, 1-2% filler, 0.05-0.07% crosslinker/chain extender, and 8-12% hollow glass microspheres; and heat-activated adhesive layer on at least one side. A pressure-sensitive adhesive may be on the other side.
    Type: Application
    Filed: August 1, 2001
    Publication date: March 7, 2002
    Applicant: Scapa Tapes North America Inc.
    Inventors: Ramesh Lhila, Kwang-yol Park, Kaila Delpozzo, Jian Ling Ding