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Activatable material for sealing, baffling or reinforcing and method of forming same

  • US 7,125,461 B2
  • Filed: 05/07/2003
  • Issued: 10/24/2006
  • Est. Priority Date: 05/07/2003
  • Status: Expired due to Fees
First Claim
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1. A method of sealing, baffling or reinforcing a portion of an automotive vehicle, the method comprising:

  • providing an activatable material, the activatable material including;

    i) 30% to about 80% by weight epoxy resin;

    ii) 5% to about 25% by weight thermoplastic polyether selected from a polyetheramine and a polyamino ether; and

    iii) a curing agent;

    applying the activatable material to a surface of a carrier member;

    inserting the carrier member with the activatable material disposed thereon into a cavity that is at least partially defined by a structural member of the automotive vehicle; and

    exposing the activatable material to heat thereby activating the activatable material to bond to surfaces of the structural member;

    wherein the thermoplastic polyether has a melt index between about 25 and about 75 per 10 minutes under a load of 2.16 Kg at a temperature of 190°

    C.

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