Patents by Inventor David V. Babb

David V. Babb 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).

  • Antifog film laminates
    Patent number: 5567533
    Abstract: A laminate comprises a first substrate including a first layer of a blend of a polyolefin and an antifogging agent, and a bonding layer of polyolefin, preferably an ethylene unsaturated ester copolymer or low density polyethylene; a second substrate bonded to the bonding layer of the first substrate and comprising polyester or nylon; and a conventional adhesive between the first and second substrates; the bonding layer pre-treated by corona discharge before wind-up, and again treated by corona discharge before lamination. The laminates of the present invention exhibit much improved bond strength compared with conventional laminates.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: October 22, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Gloria G. Toney, Robert A. Young, David V. Babb
  • Corona treatment of antifog film laminates
    Patent number: 5520764
    Abstract: A laminate comprises a first substrate including a first layer of a blend of a polyolefin and an antifogging agent, and a bonding layer of polyolefin, preferably an ethylene unsaturated ester copolymer or low density polyethylene; a second substrate bonded to the bonding layer of the first substrate and comprising polyester or nylon; and a conventional adhesive between the first and second substrates; the bonding layer pre-treated by corona discharge before wind-up, and again treated by corona discharge before lamination. The laminates of the present invention exhibit much improved bond strength compared with conventional laminates.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: May 28, 1996
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Gloria G. Toney, Robert A. Young, David V. Babb