| 摘要 |
PROBLEM TO BE SOLVED: To mold a molded article integrally with rigidity and shock resistivity by injection molding norbornane monomer through reaction to be a norbornane molded body, and forming lattice-like ribs on the rear surface of the molded body aslant relative to the outer periphery of the molded body. SOLUTION: Reactive injection molding material is divided into liquid consisting of norbornane monomer and methathesis catalyst and liquid consisting of norbornane monomer and an active agent, and then they are blended to use upon reactive injection molding. The waterproof pan 10 is formed into a rectangle to be comprised of a bathtub pan 1 and a wash place pan 2. On the rear surface of these pans 1, 2, lattice-like ribs 6, 6 are formed at an angle of 30-60 deg.C relative to outer peripheries 5a of an outer circumference 5 of the waterproof pan 10. Each rib 6 is not limited in its shape; however, pitches of the lattice are made 30mm or more or 300mm or lower, it is preferable to be 100mm for the bathtub pan 1, and 50mm for the wash place pan 2. |
