METHOD FOR PRODUCING SPLINT-SLAB PLATES Russian patent published in 1994 - IPC

FIELD: woodworking industry. SUBSTANCE: method is used when producing splint-slab plates of polyurethane foam binder which includes the mixture of plain polyethers, foam stabilizer, frothing agent and-as hardening catalyst magnesium sulfate in the quantity of 0.8 - 1.4 mass parts and polyisocyanate in the quantity of 120 - 150 mass parts with the following proportion of ingredients, mass parts: crushed wood - 100, polyurethane foam binder 10 - 40. EFFECT: facilitated manufacture.