Patents by Inventor Apostol Yanidis

Apostol Yanidis 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).

  • Blend of polybutylene and ionomer forming easy-open heatseal
    Patent number: 5547752
    Abstract: When a flexible packaging material having a heatseal layer comprising a blend of about 15 to 50 percent polybutylene and about 50 to 85 percent of an ionomer is formed into a package by heatsealing the heatseal layer to itself, the strenth of the heatseal is between about 0.5 and 2.0 pounds per inch, with delamination occurring solely between the heatseal layers when the package is opened.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: August 20, 1996
    Assignee: James River Paper Company, Inc.
    Inventor: Apostol Yanidis
  • Resealable packaging material
    Patent number: 5382472
    Abstract: The invention is a flexible packaging material having a narrow band of pressure sensitive adhesive beneath a heatsealable surface layer. When the material is formed into a package, a heatseal is formed along the band of pressure sensitive adhesive. When the heatseal is opened, the pressure sensitive adhesive becomes exposed at the surface of the seal, which enables the package to be resealed by manual pressure alone. A particular advantage of the invention is that the pressure sensitive adhesive is present only in the narrow band, where it is needed to form the resealable seal. The packaging material is made by side-by-side coextrusion.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: January 17, 1995
    Assignee: James River Paper Company, Inc.
    Inventors: Apostol Yanidis, Bruce Sanderford
  • Resealable packaging material
    Patent number: 5089320
    Abstract: A machinable flexible packaging material capable of forming a seal that is reclosable at ambient temperature is made by applying a tacky adhesive and a thin skin layer onto a substrate, such as polyester film. Being thin, the skin layer fractures when the seal is opened, thereby allowing the adhesive to form a resealable interface at the seal area. However, since the adhesive is encapsulated in the material initially, the material may be used like other packaging materials in form, fill and seal machines.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: February 18, 1992
    Assignee: James River II, Inc.
    Inventors: Steven J. Straus, Edward J. Zuscik, William B. Bower, Apostol Yanidis
  • Flexible packaging material containing an antioxidant
    Patent number: 4880696
    Abstract: The concentration of BHT in a flexible packaging material, such as a cereal liner, can be increased by incorporating the BHT into a polymer composition that is extrusion coated onto a substrate, such as PVDC-coated paper. The extrusion coating comprises a heatseal layer and an EVA tie layer containing the BHT. This method substantially prevents evaporation of the BHT. The extrusion temperature is less than the boiling point of BHT.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: November 14, 1989
    Assignee: James River II, Inc.
    Inventor: Apostol Yanidis
  • Polypropylene laminate having an EMA-EAA tie layer
    Patent number: 4853290
    Abstract: The bond strength of ethylene-methyl acrylate copolymer to polypropylene is improved synergistically by blending between about 10 and 50 percent ethylene-acrylic acid copolymer with the ethylene-methyl acrylate copolymer.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: August 1, 1989
    Assignee: James River II, Inc.
    Inventor: Apostol Yanidis