POROUS CARRIER FOR REPELLENTS AND INSECTICIDES Russian patent published in 1999 - IPC

FIELD: wood-pulp and paper industry. SUBSTANCE: the carrier is made of singleply or multiply board based on cellulose featured by the fact that at least one of the board plies is made of board additionally containing 0.1 to 0.36 percent by mass in terms of 100 percent by mass of absolutely dry board of mineral filler with particles measuring not more than 0.074 mm selected from a group including zeolite, schungite, tripoli, pearlite, diatomite or their mixture. EFFECT: enhanced sorption capacity, enhanced resistance in the conditions of influence of atmospheric precipitation and, consequently, enhanced service life of repellents and insecticides. 3 cl, 2 tbl, 6 ex