WATER-RESISTANT WOOD-CEMENT BOARD FOR FURNITURE INDUSTRY AND CONSTRUCTION Russian patent published in 2025 - IPC C04B28/04 C04B18/26 E04C2/16 C04B24/24 C04B16/06 C04B103/32 

FIELD: chemistry; treating of wood.

SUBSTANCE: invention relates to construction and furniture production, specifically to a water-resistant wood-cement base used in making: worktops lined with decorative plastics, board materials used for making front panels lined with decorative plastics and films, as well as suitable for painting as a separate article. Water-resistant wood-cement board is obtained from a mixture containing portland cement, wood filler, a superplasticiser and tempering water. As wood filler mixture contains wood flour grades 120-180 with particle size of up to 0.18 mm, superplasticizer – C-3, and additionally redispersible polymer powder based on copolymer of vinyl acetate and ethylene, and polypropylene fibre, in following ratio of components, wt.%: portland cement – 43-52, said wood filler – 7-12, said polymer powder – 0.8-1, superplasticiser C-3 – 0.1-0.3, polypropylene fibre – 0.03-0.05, water – 40-50.

EFFECT: obtaining a wood-cement base with low weight, low water absorption, high bending strength, long service life, homogeneous internal and external structure.

1 cl, 2 dwg, 2 tbl