Patents Assigned to CMT Materials, Inc.
  • Method of thermoforming using a syntactic foam plug
    Patent number: 8075835
    Abstract: The present invention provides an improved syntactic foam plug for plug assist thermoforming wherein such plug is composed of a thermoplastic material having a relatively high melting and/or glass transition temperature. Accordingly, the subject invention encompasses diminishing or removing the undesirable characteristics of thermoset syntactic plugs while increasing the ease by which these articles may be constructed for a given use, by forming such plugs from syntactic foams containing thermoplastics.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: December 13, 2011
    Assignee: CMT Materials, Inc.
    Inventors: Richard W. Campbell, Noel J. Tessier