METHOD TO MANUFACTURE PAPER-RESIN FILM Russian patent published in 2011 - IPC D04H1/64 

FIELD: textile; paper.

SUBSTANCE: method to manufacture paper-resin film includes preparation of an impregnation solution by dissolving the impregnation phenol-formaldehyde resin with water to the required concentration and viscosity, addition of a soaking additive, a separating-antiadhesive additive, anti-blocking additive to prevent sticking of films. The impregnation composition contains carbonate or ammonia bicarbonate, or their mixtures - ammonium bicarbonates, in amount of 0.5-4% to mass of phenol resin.

EFFECT: improved physical and mechanical characteristics of coating based on a paper and resin film, reduced time of drying of impregnated paper base and duration of facing of veneer and other board materials.

4 tbl