Process for producing a reinforced acoustically resistive layer, resistive layer thus obtained and panel using such a layer
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United States of America Patent
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app pub date -
Nov 28, 2007
filing date -
Jun 19, 2001
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Abandoned
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Abstract
The object of the invention is a process for the production of a reinforced acoustically resistive layer, in which there is produced a layer of structural reinforcement from fibers pre-impregnated with a thermosetting or thermoplastic resin, said layer having a given quantity of open surface relative to the acoustic waves to be handled, there is associated with said reinforcing layer a metallic acoustic cloth whose mesh is suitable for the quantity of open surface of said structural layer, and the polymerization or consolidation of said resins under pressure and temperature suitable for the resins used, is carried out, characterized in that there is associated with the impregnation resin for the fibers a component (2a) adapted for macromolecular interpenetration with said resin during the polymerization or consolidation so as to ensure for the reinforcing layer (2) improved mechanical and adhesive properties for the metallic cloth. Application to the production of acoustic panels.
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