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Structural hot melt material and methods

  • US 6,887,914 B2
  • Filed: 09/04/2002
  • Issued: 05/03/2005
  • Est. Priority Date: 09/07/2001
  • Status: Expired due to Term
First Claim
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1. A method of reinforcing structural members comprising the steps of:

  • providing a structural member of an automotive vehicle, the structural member having two substrates that form a hem flange, the hem flange forming a space to be joined;

    providing a material comprising of in parts by weight;

    less than about twenty percent (<

    20%) ethylene copolymer, less than about forty percent (<

    40%) epoxy, less than about thirty percent (<

    45%) epoxy-based resin, less than about two percent (<

    2%) blowing agent and from about one percent (1%) to about five percent (5%) curing agent;

    placing said material in proximity of said space to be joined;

    exposing said material to a heat source that delivers heat energy at a temperature between about 285°

    F. and about 400°

    F. causing said material to flow, fill, and cure in said space to be joined.

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