| 摘要 |
PURPOSE:To increase the bonding strength of areas where the reinforcement core material of a gutter lug part is bonded to the reinforced core material of a gutter body part. CONSTITUTION:When a resin coated layer 2 is formed on a reinforced core material 1 comprising a fiber-reinforced vinyl chloride resin sheet by extrusion- coating hard vinyl chloride resin, mixed resin made by mixing 100 parts of vinyl chloride resin by weight with 7 to 18 parts of vinyl acetate-ethylene copolymerized resin by weight is used at least as a matrix resin which forms the end part 1c of the reinforced core material of a gutter lug part 4 so as to produce the reinforced core material 1. By this, when the reinforced core material 1 is formed into rain gutter shape, if its end part 1c is connected to the side edge part of the reinforced core material 1b of a gutter body part 3 and extrusion-coated, a rain gutter 20 excellent in bonding strength of a connection part can be obtained. |
