METHOD FOR PRODUCING PANEL FROM MINERAL WOOL Russian patent published in 2021 - IPC E04F13/16 

FIELD: construction.

SUBSTANCE: inventions group relates to construction, in particular to the manufacture of facade, floor, ceiling and other slabs and panels. The method includes providing mineral wool fibers with a fiber length of 50 to 800 mcm, gluing the fibers with a liquid binder containing phenolic resin. The ratio of the binder to the mineral wool fibers is 5 to 30% by weight. Next, the glued fibers are pressed using heat and pressure to provide a density of 500 kg/m³. The binder includes additives containing kaolin, quartz flour, limestone and/or aluminum oxide with an average size d₅₀ ranging from 10 nm to 250 mcm. Mineral fillers are added in an amount of 5 to 150 wt.% based on the dry weight of the resin in the liquid binder.

EFFECT: invention increases the strength and reliability of the mineral wool slab.

18 cl, 2 dwg