| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight waterproof pan having high rigidity for a unit bath, a system toilet, etc. SOLUTION: The waterproof pan consists of a polynorbornane resin obtained by reaction infection-molding a nonbornace monomer. A plurality of ribs 6 are formed in a latticed shape on the rear of the waterproofed pan, and the spaces of the lattice are set from 30n to 300mm, more preferably 50m to 150mm. The ratio b/c of the height (b) of the rib to the width (c) of a rib base section is set from 0.5 to 10, more preferably 1 to 7. |
