DEFORMATION-PROOF OF BASE LAYERS AND METHODS FOR THEIR MANUFACTURE AND USE Russian patent published in 2018 - IPC B32B7/02 E04F13/02 E04C2/18 

FIELD: construction.

SUBSTANCE: invention relates to building structural materials that can be made in the form of wall or ceiling panels. In the method, the building panel comprises a core comprising a plurality of open cells, a first surface layer attached to the first major surface of the core by a first adhesive, and a second surface layer attached to the second major surface of the core by a second adhesive. Wherein the glass transition temperature of the second adhesive is higher than the glass transition temperature of the first adhesive. Further, the panel is formed by forming a core and then attaching it to it by means of surface layer adhesives.

EFFECT: panel has a low density, is resistant to deformation and cracking and elastic.

25 cl, 1 tbl, 3 ex