Patent ID: 11932733
Assignee: ASAHI KASEI CONSTRUCTION MATERIALS CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A phenolic resin foam laminate board in which a flexible surface material is arranged on at least one of one side of a phenolic resin foam and a back side of the one side, wherein:
the phenolic resin foam contains HCFO-1224yd(Z), is produced from a foamable phenolic resin composition, and has a density of not less than 20 kg/m3 and not more than 55 kg/m3, a closed cell ratio of not less than 80%, and an average cell diameter of not less than 60 μm and not more than 200 μm,
the foamable phenolic resin composition contains a phenolic resin, a surfactant, a blowing agent containing HCFO-1224yd(Z), a solid foam nucleating agent and an acid curing agent containing an organic acid,
the phenolic resin having a molecular weight of 900 to 2500,
the blowing agent is present in an amount of 4 to 11 parts by mass per 100 parts by mass of the phenolic resin and the surfactant,
the solid foam nucleating agent is present in an amount of 3 to 10 parts by mass per 100 parts by mass of the phenolic resin composition,
an area of the foamable phenolic resin composition seeping out from the surface material is 15% or less of a total area of the surface material, and
a content of HCFO-1224yd(Z) per space volume of 22.4×10−3 m3 in the phenolic resin foam is not less than 0.11 mol and not more than 0.22 mol.