Patents by Inventor Nelson V. Seeger

Nelson V. Seeger 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).

  • Transparent, impact-resistant polyesterurethane laminates
    Patent number: 4041208
    Abstract: Laminated glass articles useful as automobile windshields or in other safety glass applications comprising a polyesterurethane and at least one sheet of glass are described. The polyesterurethane is a thermoplastic, transparent material that is formed preferably from an aliphatic polyester, e.g., poly(1,4-butylene adipate), a cycloaliphatic diisocyanate, e.g., 4,4'-methylene-bis (cyclohexyl isocyanate), and a monomeric aliphatic diol, e.g., 1,4-butane diol.
    Type: Grant
    Filed: May 21, 1974
    Date of Patent: August 9, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Nelson V. Seeger, Andrew J. Kaman
  • Impact-resistant thermoplastic polyester urethanes
    Patent number: 3931113
    Abstract: Polyester urethanes having superior properties for use in safety glass windshields are formed from (a) a hydroxy-terminated polyester of polycaprolactone, poly(butylene adipate), poly(butylene azelate) or mixtures; (b) a diol having a molecular weight less than 250, preferably 1,4-butanediol or 1,3-butanediol and (c) a cycloaliphatic diisocyanate.
    Type: Grant
    Filed: November 30, 1972
    Date of Patent: January 6, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Nelson V. Seeger, Andrew J. Kaman