GYPSUM PANEL FOR ACOUSTIC MONOLITHIC CEILING Russian patent published in 2016 - IPC E04B1/84 

FIELD: construction.

SUBSTANCE: acoustic panel stretches across a rectangular area and comprises a core made preferably of gypsum and having substantially same length with the panel area so that it has two opposite sides, the area of each of which is substantially equal to the panel area. The core has multiple perforations stretching in general between its sides, distributed substantially evenly in the entire area of the core and open at both sides of the core. The face side of the core is closed with a porous layer. Perforations are additionally limited at the rear side of the core, The specified porous layer at the face side of the core is suitable for adhesion with a composition for finishing of joints for dry plastering and water-based non-blocking paint.

EFFECT: invention makes it possible to provide for solidity of structure surface and to increase its sound absorption ratio.

10 cl, 7 dwg, 5 tbl