METHOD FOR PROLONGING THE POT LIFE OF TWO-PART WATER-BASED POLYCHLOROPRENE ADHESIVE

摘要

Two−part water−based adhesives of the prior art wherein isocyanates were used in order to improve the bond strength and the workability often exhibited such short pot lives as to become a problem in practical use. According to the invention, the pot life of a two−part water−based polychloroprene adhesive comprising a polychloroprene latex as the chief material and a polyisocyanate compound as the curing agent can be prolonged to a practically unproblematic level by adding an alkyl diphenyl ether disulfonic acid salt and/or a polyoxyethylene alkyl ether sulfate salt to the adhesive.