Cavity sealing system for automotive vehicles
OwnerPatrick Mooreinventor
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Abstract
The present invention relates to a system for sealing a cavity of an automotive vehicle frame, wherein a wall is associated with an automotive vehicle structure; and an expandable material is disposed by an extruder over at least a portion of said wall and in contact with said wall prior to expansion of said expandable material, wherein the expansion rate of the expandable material is at least 400% when exposed to heat usually provided to the vehicle frame during automotive vehicle production and wherein the expandable material is prior and after its disposition to said wall dry to the touch at ambient temperature.
Claims22
A system for sealing a cavity of an automotive vehicle frame, comprising:
- (a) a wall associated with an automotive vehicle pillar;
- and
- (b) a thermoplastic foamable acoustical polymer material disposed by an extruder over at least a portion of said wall and in contact with said wall prior to expansion of said expandable material,
- wherein the expansion rate of the expandable material is at least 400% when exposed to heat usually provided to the vehicle frame during automotive vehicle production and wherein the expandable material is prior and after its disposition to said wall dry to the touch at ambient temperature.
4-5. (canceled)
Dependencies are inferred from the claim text.