Patent ID: 6528113
Filing Date: 2003-03-04
Classification: C08J,D06M

Abstract:
A process for producing an adhesive-treated polyester fiber cord comprising:subjecting a non-twisted or twisted polyester fiber cord to a first adhesive-treating procedure in which a first adhesive liquid comprising a polyepoxide compound and a blocked polyisocyanate compound in a solid weight ratio of 1/3 to 1/5 is applied to the polyester fiber cord and the first adhesive liquid-applied polyester fiber cord is heat treated at a temperature of 160 to 240Â° C.; twisting, where the polyester fiber cord has no twist, the non-twisted polyester fiber cord; subjecting the first adhesive-treated polyester fiber cord to a second adhesive-treating procedure in which a second adhesive liquid comprising a resorcinol-formaldehyde condensation product resin and a rubber latex in an effective component weight ratio of 1/3 to 1/15, is applied to the first adhesive-treated polyester fiber cord, and the second adhesive liquid-applied polyester fiber cord is heat-treated at a temperature of 180 to 240Â° C.; and subjecting the second adhesive-treated polyester fiber cord to a third adhesive-treating procedure in which a third adhesive liquid comprising an aqueous dispersion of a resorcinol-formaldehyde condensation product component (RF) in a molar ratio (R/F) of resorcinol (R) to formaldehyde (F) of 1/0.6 to 1/1.0 and a rubber component (G) containing natural rubber (NR) in a content of at least 15% by weight based on the total weight of the rubber component (G), in a solid weight ratio (RF/G) of the resorcinol-formaldehyde condensation product component (RF) to the rubber component (G) of 1/10 to 1/20, is applied to the second adhesive-treated polyester fiber cord, and the third adhesive liquid-applied polyester fiber cord is heat-treated at a temperature of 140 to 170Â° C.