METHOD AND APPARATUS FOR RETICULATING FOAM MATERIAL USING SHOCK WAVES IN A GASEOUS ENVIRONMENT

摘要

The present document describes a method and apparatus to rapidly reticulate closed-cell or partially closed-cell foams. The method involves the propagation of an energy impulse inside the foam; the energy impulse can be a shock wave. The energy impulse is generated in the same gaseous environment in which the foam is immersed, preferentially air in room condition. The energy impulse destroys the membranes closing the foam cells without disintegrating the frame's structure. In particular, the method rapidly improves the acoustic and filtering behavior of the foams.

主权项

1. A process for improving properties of closed-cell or partially closed cell foam material, the process comprising: immersing the foam material in a gaseous environment and subjecting the foam material to an energy impulse.