Patents by Inventor Mark R. Buckingham

Mark R. Buckingham 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).

  • Composite panel with fire resistant face sheets
    Patent number: 6992027
    Abstract: A fire resistant laminate for application to a core structure (12) to form a sandwich panel (10) having fire resistant face sheets (14 & 16). The laminate includes a fire protection (18) in which at least one layer of fibers (22) is embedded within a cured inorganic polymer matrix (24). The laminate further includes an adhesive layer (20) for bonding to the core structure.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: January 31, 2006
    Assignee: HEXCEL Composites LTD
    Inventors: Mark R. Buckingham, F. Dana Blair, Christopher J. E. Harrington
  • Intumescent fire sealing composition
    Patent number: 6747074
    Abstract: Described is a flexible, solid fire sealant produced by high shear mixing in a substantially volatile-free state and capable of being molded or extruded into a variety of shapes and used as firestops for windows, doors, dampers, shutters, and through-penetrations, the sealant containing water-insoluble intumescent mineral granules, a polymeric, halogen-free binder, and a flame retardant, wherein the sealant has a softness value from about 0.01 to about 3.75 mm and exhibits high expansion values and chars upon exposure to heat.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: June 8, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Mark R. Buckingham, Walton W. Welna
  • Flame retardant pressure-sensitive adhesives and tapes
    Patent number: 5851663
    Abstract: A pressure-sensitive adhesive composition comprises an adhesive selected from the group consisting of rubber resin adhesives and acrylic adhesives containing from about 10 to about 60% by weight of the adhesive of a non-halogen intumescent flame retardant.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: December 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Keith P. Parsons, Mark R. Buckingham, James H. Diamond, Steven J. Ilkka, Petra Nowak
  • Magnetic recording materials provided with a photosensitive layer
    Patent number: 5462823
    Abstract: Disclosed is a magnetic recording element comprising a support having coated on at least one major surface thereof a layer of a magnetic recording medium and a photosensitive layer which may be separate from or integral with the magnetic recording layer and which contains an infrared absorbing dye or its precursors. Information can be imparted to the photosensitive layer by imagewise exposure to actinic radiation which will either promote or inhibit generation or destruction of the infrared absorbing dye.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 31, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Christopher M. Evans, Mark R. Buckingham, Colin F. Norman
  • Optical recording elements
    Patent number: 5168031
    Abstract: An optical recording element comprising a substrate and as a recording medium a layer comprising a dye having a nucleus of general formula (I): ##STR1## wherein: each Y and Z is independently selected from the group consisting of hydrogen and --XR wherein X is selected from the group consisting of S, Se and Te and R represents an organic radical; with the proviso that one and only one of Y and Z on each phenyl ring must be other than H, andM is selected from the group consisting of two hydrogen atoms, metals and metal oxides.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: December 1, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark R. Buckingham, Christopher M. Evans, Richard J. Ellis, Andrew C. Jackson