| 摘要 |
PROBLEM TO BE SOLVED: To provide new techniques which enable long-term retention of excellent thermal insulation performance while reducing water absorbency of phenolic resin foam.SOLUTION: A phenolic resin foam laminate comprises plate material disposed on at least upper and lower surfaces of phenolic resin foam having a density in a range from 15 kg/mor more and to 70 kg/mor less and a closed-cell rate of 80% or more. The phenolic resin foam contains at least one selected from a group consisting of hydrocarbon, chlorinated hydrocarbon and hydrofluoroolefin, and has a water absorption amount W, after 24 hours of water immersion, of 2.00 kg/mor less. A Frazier air permeability of the plate material is from 0.3 cm/cmsec or more and 50 cm/cmsec or less.SELECTED DRAWING: Figure 1 |
