PURPOSE: To obtain a high-performance laminated pipe made up of a fluororesin and rubber by application of an adhesive having stable and high adhesiveness in e.g. covering the surface of a fluororesin with a rubber through extrusion.
CONSTITUTION: This adhesive can be obtained by incorporating an organosiloxane-based adhesive main agent with a silane coupling agent and pulverized silica. By applying this adhesive for bonding between a fluororesin and a rubber, the flow on the surface of the resin during the extrusion of the rubber and the debonding of the rubber off the resin surface in the cure shrinkage of the rubber can be prevented. And, a fluororesin inner pipe 2 and a rubber outer pipe 4 are mutually laminated through an adhesive layer 3 consisting of this adhesive, and the resulting laminate is monolithically bonded through curing, thus obtaining the objective laminated pipe 1 with low volatile matter permeability.
KIMURA AKIYOSHI
UEDA TAKESHI
