Patents by Inventor Prasad S. Potnis

Prasad S. Potnis 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: 6625923
    Abstract: A substrate comprising a paper layer and at least one biodegradable polymer layer extruded thereon is provided. The paper layer may have an extruded polymer layer on each side, it may have multiple polymer layers extruded on one side, or both. Additives appropriate for the particular use of the substrate may be added to one or more of the polymer layers.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: September 30, 2003
    Assignee: International Paper Company
    Inventors: Peter F. Lee, Elizabeth C. Cornelius, Prasad S. Potnis, Christopher S. Cleveland, Gary H. Knauf
  • Publication number: 20030056433
    Abstract: A substrate comprising a paper layer and at least one biodegradable polymer layer extruded thereon is provided. The paper layer may have an extruded polymer layer on each side, it may have multiple polymer layers extruded on one side, or both. Additives appropriate for the particular use of the substrate may be added to one or more of the polymer layers.
    Type: Application
    Filed: February 15, 2001
    Publication date: March 27, 2003
    Inventors: Peter F. Lee, Elizabeth C. Cornelius, Prasad S. Potnis, Christopher S. Cleveland, Gary H. Knauf
  • Patent number: 6451423
    Abstract: The invention addresses the use of a composite carbon dioxide scavenging filler which has been dispersed uniformly into a polymeric matrix. The resultant layer can then be coated or laminated onto a paper, paperboard, foil, or other substrates. It can also be made into a cast or blown film. The carbon dioxide scavenging structure thus created desirably contains a polymeric matrix binder as the filler dispersion medium, one or more particular carbon dioxide scavenging fillers, one or more moisture producing/retaining agents or moisture retaining agents, and, optionally, one or more polymeric or surfactant dispersion/wetting agents aiding the wetting and the uniform dispersion of the fillers in the matrix. This allows products contained in a package, such as roasted coffee, or produce, to maintain freshness and counteract pressure buildup in a package which results in bulging, rupture, loss of freshness, poor shelf appearance, and increased anaerobic bacterial activity.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: September 17, 2002
    Assignee: International Paper Company
    Inventors: Rahim Armat, Prasad S. Potnis, Richard D. Pastor, Keith S. Shih, Leo Stoeberl, Victor P. Holbert
  • Patent number: 6153701
    Abstract: A wettable polypropylene composition comprising polypropylene and a hydrophilic, polar compound which includes functional sites selected from the group consisting of carboxyl, hydroxy, ether or ester moieties, wherein the polypropylene composition is wettable, having a contact angle less than or equal to 75.degree.. The hydrophilic polar compounds are selected from the group consisting of maleic anhydride-modified polypropylene (MAPP), acrylic acid modified polypropylene, ethylene acrylate modified polypropylene, polypropylene grafted with a sodium salt of an acrylic acid, polyethylene glycol (PEG), modified polyethylene glycol, polyvinyl alcohol (PVOH), polyvinyl formal (PVF); and monomer and dimer fatty acids having a carbon chain length in the range of 6 to 50, preferably 18 to 36. The compositions can further include the presence of an amorphous compound and surfactants.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: November 28, 2000
    Assignee: International Paper Company
    Inventors: Prasad S. Potnis, Ashok M. Adur, Wayne Chu
  • Patent number: 5614283
    Abstract: The absorbent composite comprises a three-dimensional formed film having a planar surface and three-dimensional surface defining a plurality of cavities or projections depending downwardly from a planar surface. A plurality of the cavities or projections or spaces defined by the cavities contain at least one type of absorbent material. The composite is useful in a fluid absorbent product having at least one liquid pervious layer and at least one liquid impervious layer where the absorbent composite is positioned between the liquid pervious layer and the liquid impervious layer.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: March 25, 1997
    Assignee: Tredegar Industries
    Inventors: Prasad S. Potnis, Michael A. Francis