Sound absorption system for automotive vehicles

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

Reexamination Certificate

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Details

C156S079000, C156S244110, C264S046400, C264S051000

Reexamination Certificate

active

06926784

ABSTRACT:
An automotive vehicle sound absorption system. An expandable material, such as an polymer-based foam, is disposed on a surface of a wall. Upon activation, the foam transforms, preferably during an automobile assembly operation, and remains bonded to surface for sound absorption.

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