Patents by Inventor Thomas B. Harty

Thomas B. Harty 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).

  • Polymerisation initiators, polymerisable compositions, and uses thereof for bonding low surface energy substrates
    Patent number: 7371466
    Abstract: Quaternary boron salts are used as initiators of polymerisation in adhesive compositions for bonding low surface energy substrates such as polyolefins. The quaternary boron salts are of the formula I wherein R1 is C1-C10 alkyl, R2, R3 and R4, which may be the same or different, are, C1-C10 alkyl or C3-C10 cycloalkyl, phenyl, or phenyl-substituted C1-C10 alkyl or C3-C10 cycloalkyl, provided that any two of R1-R4 may optionally be part of a carbocyclic ring, and M+ is a metal ion or a quaternary ammonium ion. When M+ is a quaternary ammonium ion, the initiator may be used in a two-part composition having a (meth)acrylate monomer in both parts and the initiator compound in one part, the two parts being in a weight ratio of about 1:1.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: May 13, 2008
    Assignee: Loctite (R & D) Limited
    Inventors: Brendan J. Kneafsey, Gerry Coughlan, Thomas B. Harty
  • Polymerisation initiators, polymerisable compositions, and uses thereof for bonding low surface energy substrates
    Publication number: 20030226472
    Abstract: Quaternary boron salts are used as initiators of polymerisation in adhesive compositions for bonding low surface energy substrates such as polyolefins.
    Type: Application
    Filed: April 14, 2003
    Publication date: December 11, 2003
    Applicant: LOCTITE (R&D) LIMITED
    Inventors: Brendan J. Kneafsey, Gerry Coughlan, Thomas B. Harty