METHOD FOR COATING CARRIERS, EMULSION USED THEREINMETHOD FOR COATING CARRIERS, EMULSION USED THEREIN, RESULTING COATED MATERIALS, AND DEVICES FOR PROD, RESULTING COATED MATERIALS, AND DEVICES FOR PRODUCING AND LAYING COATED MATERIALS UCING AND LAYING COATED MATERIALS

摘要

PCT No. PCT/FR96/00010 Sec. 371 Date Sep. 2, 1997 Sec. 102(e) Date Sep. 2, 1997 PCT Filed Jan. 3, 1996 PCT Pub. No. WO96/21686 PCT Pub. Date Jul. 18, 1996A process for the bituminous coating of any supports by providing a cold coating of the supports by bituminous emulsions, comprising first obtaining a hydrophobic powder of positive electric charge by the conjoint action of a metallic salt soluble in water and a long chain organic acid, then introducing this powder, either into a mass of the supports to be coated, or into a bituminous anionic emulsion and then mixing the supports and bituminous emulsion in a mixer so as to effect cold coating. An anionic emulsion is mixed with a hydrophobic powder of positive electric charge so as to confer on the emulsion a cationic behavior and coating and covering properties.