| 摘要 |
PURPOSE:To provide a laminate blow molded product wherein outer and inner pipe layers are strongly bonded and no foaming is generated in the bonded surface of both layers or in the outer and inner pipe layers. CONSTITUTION:In a blow molded product obtained by the blow molding vulcanization of a parison 2 constituted by laminating an outer pipe layer 21 composed of an epichlorohydrin rubber material and an inner pipe layer 22 composed of a fluorirubber material, 3-20 pts.wt. of a dehydrating agent and 3-20 pts.wt. of an adhesiveness imparting agent are added to 100 pts.wt. of the epichlorohydrin rubber material and 3-10 pts.wt. of the dehydrating agent is added to 100 pts.wt. of the fluororubber material. As the dehydrating agent, for example, calcium oxide is used and, as the adhesiveness imparting agent, for example, calcium hydroxide is used. |
