Patents by Inventor Robert D. Waid

Robert D. Waid 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).

  • Pressure-sensitive adhesive composition and tapes
    Patent number: 6022914
    Abstract: The present invention relates to a pressure-sensitive adhesive composition containing a non-halogen, non-intumescent flame-retardant system comprising at least one flame-retardant agent with the provisos that the flame-retardant system does not comprise Sb.sub.2 O.sub.3 or does not consist only of alumina trihydrate.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: February 8, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Petra Nowak, Robert D. Waid, William D. Coggio
  • Flame retardant thermosettable resin compositions
    Patent number: 5652285
    Abstract: The invention provides a thermosettable resin composition comprising (a) one or more thermosettable resins, (b) one or more of curatives, hardeners, and optionally catalysts for the curing of the thermosettable resin in an amount sufficient for the cure of the thermosettable resin, and (c) an effective amount of at least one non-functional cyclophosphazene to render said resin composition, when cured, flame retardant. The non-functional cyclophosphazene contains aryloxy group substitution and does not covalently bond with the resin network. As a result, the non-functional cyclophosphazene does not negatively impact key performance properties such as modulus, thermal stability, dielectric behavior, fracture toughness, moisture uptake or adhesion.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: July 29, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William D. Coggio, William J. Schultz, Dennis C. Ngo, Robert D. Waid, Valerie M. Juvin-Pedretti
  • Flame retardant thermosettable resin compositions
    Patent number: 5639808
    Abstract: The invention provides a thermosettable resin composition comprising (a) one or more thermosettable resins, (b) one or more of curatives, hardeners, and optionally catalysts for the curing of the thermosettable resin in an amount sufficient for the cure of the thermosettable resin, and (c) an effective amount of at least one non-functional cyclophosphazene to render said resin composition, when cured, flame retardant. The non-functional cyclophosphazene contains aryloxy group substitution and does not covalently bond with the resin network. As a result, the non-functional cyclophosphazene does not negatively impact key performance properties such as modulus, thermal stability, dielectric behavior, fracture toughness, moisture uptake or adhesion.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: June 17, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William D. Coggio, William J. Schultz, Dennis C. Ngo, Robert D. Waid, Valerie M. Juvin-Pedretti