Patent ID: 6372821
Filing Date: 2002-04-16
Classification: C08J,C08K,C08L,C09J

Abstract:
An adhesive for joining PVC pipes and components or CPVC pipes and components comprising either:(a1) about 5 to 25 wt % PVC resin and 0 to about 25 wt % acrylic resin, the total of said PVC resin and acrylic resin ranging from 10 to 35 wt %; or (a2) about 5 to 25 wt % CPVC resin; and (b) 5 to 80 wt % dimethyl-2-piperidone; (c) 10 to 75 wt % of at least one ketone selected from the group consisting of (1) 0 to about 75 wt % acetone, (2) 0 to about 75 wt % of at least one low boiling ketone having a boiling point less than 80Â° C., (3) 0 to about 35 wt % of at least one medium boiling ketone having a boiling point within a range of about 80Â° to 130Â° C., and (4) 0 to about 35 wt % of at least one high boiling ketone having a boiling point greater than 130Â° C., wherein said medium boiling ketone and said high boiling ketone have a maximum amount of 35 wt %; and (d) 0 to about 10 wt % tetrahydrofuran.