CLOTH FOR VENTILATION PIPE Russian patent published in 1998 - IPC

FIELD: mining engineering. SUBSTANCE: invention relates to mine ventilation pipes, suction and discharge air conductors, mine shells for reinforcing production faces of hollow- formers, formation of ventilation and process canals, sleeve articles, and so on. Cloth of invention is polymer-coated and comprises interwoven core and filling threads forming cells. The threads are natural and/or artificial and/or synthetic or they consist of blends containing natural, artificial, and synthetic filaments. Cloth is characterized by coefficient of interweaving compactness 0.24-1. Polymer coating contains suspension polyvinylchloride, alkyl(aryl) phosphoric acid salts, and blocked polyisocyanates. EFFECT: improved reliability. 1 tbl