Patent ID: 7946385

Claim:
A process for the production of an acoustically resistive structure that can be inserted in an alveolar structure to obtain a coating for an acoustic treatment, said acoustically resistive structure ( 32 ) including at least one porous layer ( 34 ) and at least one reinforcement structure ( 36 ) assembled by gluing, the process comprising the steps of: applying an amorphous-type adhesive on said at least one reinforcement structure ( 36 ); perforating or micro-perforating the reinforcement structure ( 36 ) after the application of the amorphous-type adhesive; and applying said at least one porous layer against a face of the reinforcement structure ( 36 ) that is coated with the amorphous-type adhesive, wherein, at peripheries of open zones of the acoustically resistive structure, said adhesive is not altered by a heating produced during the perforating step.