Patents by Inventor Margaret R. Haddon

Margaret R. Haddon 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).

  • Photopolymerisable liquid compositions for bonding friction material to metal
    Patent number: 5620553
    Abstract: A liquid composition which on exposure to actinic radiation polymerizes to form a heat-curable solid film adhesive, said composition comprising (A) a heat-curable phenol-aldehyde resol resin, (B) a photopolymerizable polyurethane or polyester having, on average, more than one polymerizable acrylic group per molecule, or a mixture of said polyurethane and said polyester, (C) a photopolymerization initiator for (B) and (D) a polyvinylacetal. The heat-curable solid film adhesive is used for bonding friction materials, such as brake linings, to metal.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: April 15, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Margaret R. Haddon, Terence J. Smith, Stuart Mansfield
  • Photopolymerisable liquid compositions for forming heat curable solid film adhesives
    Patent number: 5451616
    Abstract: A liquid composition which on exposure to actinic radiation polymerizes to form a heat-curable solid film adhesive, said composition comprising (A) a heat-curable phenol-aldehyde resol resin, (B) a photopolymerizable polyurethane or polyester having, on average, more than one polymerizable acrylic group per molecule, or a mixture of said polyurethane and said polyester, (C) a photopolymerization initiator for (B) and (D) a polyvinylacetal.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: September 19, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Margaret R. Haddon, Terence J. Smith, Stuart Mansfield