公开(公告)号：US20210115603A1

公开(公告)日：2021-04-22

申请号：US17057833

申请日：2019-06-03

Applicant: SAINT-GOBAIN ADFORS

Inventor： Alexandre PREVOTEAU ,  Sylvain BERGER ,  Gwladys CORNU

IPC: D04H1/4218 ,  D04H3/004 ,  E04B1/84 ,  E04B9/00 ,  E04B9/04

Abstract: The invention relates to a textile structure, intended to be used as a sound-absorbing structure in acoustic ceiling panels and/or acoustic wall panels, consisting of (a) a nonwoven mat of glass fibers bound by a thermoset binder, the nonwoven mat having a surface density of between 20 and 200 g/m2 and (b) a continuous acoustic layer comprising from 80% to 95% by weight of particles, preferably mineral particles, and from 5% to 20% by weight of a thermoplastic polymer and/or elastomer binder, the textile structure having an open porosity of greater than 3%, preferably between 4% and 60%, and a static airflow resistance (determined according to the standard ISO 9053) of between 1000 and 3000 N·s·m−3, said continuous acoustic layer at least partially impregnating said nonwoven mat, and the particle size distribution of the particles having a D10 of between 0.1 and 0.5 μm. It also relates to a process for manufacturing such a textile structure and to a ceiling panel or wall panel coated on one of these faces with such a textile structure.