Abstract: A method of producing a phenolic resin foam is provided. The method includes foaming and curing, on a surface material, a foamable phenolic resin composition containing a phenolic resin, a surfactant, a curing catalyst, and at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin has a weight average molecular weight Mw of at least 400 and no greater than 3,000 as determined by gel permeation chromatography. The phenolic resin has a viscosity at 40° C. of at least 1,000 mPa·s and no greater than 100,000 mPa·s. The phenolic resin has a viscosity increase rate constant of at least 0.05 (1/min) and no greater than 0.5 (1/min).

Abstract: Provided are a phenolic resin foam that has low environmental impact, can maintain excellent thermal insulation performance over the long-term, and reduces condensation inside walls associated with increased water vapor permeation, and also a method of producing the same. The phenolic resin foam contains a phenolic resin and at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin foam has a density of at least 20 kg/m3 and no greater than 100 kg/m3, an average cell diameter of at least 10 um and no greater than 300 ?m, a closed cell ratio of at least 80% and no greater than 99%, and a water vapor permeance of at least 0.38 ng/(m·s·Pa) and no greater than 2.00 ng/(m·s·Pa).

Abstract: A phenolic resin foam laminated sheet comprising a phenolic resin foam; and a face material for covering a surface of the phenolic resin foam, wherein the phenolic resin foam contains a hydrocarbon, a chlorinated aliphatic hydrocarbon or a combination thereof, a density of the phenolic resin foam is 10 kg/m3 or higher and 100 kg/m3 or lower, an average cell diameter of the phenolic resin foam is 5 ?m or larger and 200 ?m or smaller, a closed cell content of the phenolic resin foam is 85% or higher and 99% or lower, and an absolute value of a dimensional charge rate of the phenolic resin foam after 70° C. for 48 hours is 0.49% or lower.

Abstract: Provided are a phenolic resin foam having low environmental impact, high compressive strength, excellent handling properties in installation, and low costs associated with securing, and also a method of producing the same. The phenolic resin foam contains at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin foam has a density of at least 20 kg/m3 and no greater than 100 kg/m3, and a closed cell ratio of at least 80% and no greater than 99%. The density and 10% compressive strength of the phenolic resin foam satisfy a relationship: C?0.5X?7, where C represents the 10% compressive strength (N/cm2) and X represents the density (kg/m3).

Abstract: There is disclosed a phenol resin foam comprising a phenol resin, a hydrocarbon having 6 or less carbon atoms, and at least one halogenated hydroolefin selected from the group consisting of hydrofluoroolefins and hydrochlorofluoroolefins, and the phenol resin foam having the density of 10 kg/m3 or more and 150 kg/m3 or less, wherein the sum of the content of the hydrocarbon having 6 or less carbon atoms and the content of the hydrogenated hydroolefin is from 0.23 to 0.90 mol, the content of the hydrocarbon having 6 or less carbon atoms is from 0.03 to 0.85 mol, and the content of the halogenated hydroolefin is from 0.05 to 0.85 mol, per 22.4×10?3 m3 of spatial volume in the phenol resin foam.

Abstract: Provided is a phenol resin foam that has low initial thermal conductivity and that retains low thermal conductivity for a long period of time. The present phenol resin foam may contain a cyclopentane and a high-boiling hydrocarbon with a boiling point of from 120° C. to 550° C. and may have a density of from 10 kg/m3 to 150 kg/m3. The content of the cyclopentane in the phenol resin foam per 22.4×10?3 m3 space volume in the phenol resin foam is from 0.25 mol to 0.85 mol.

Abstract: There is disclosed a phenol resin foam which contains a phenol resin, and a foaming agent comprising at least either one of a chlorinated hydrofluoroolefin or a non-chlorinated hydrofluoroolefin. With respect to the phenol resin foam, a density is 10 kg/m3 or more and 150 kg/m3 or less, a thermal conductivity under a 10° C. environment is 0.0175 W/m·k or less, and a thermal conductivity under a 23° C. environment is 0.0185 W/m·k or less.

Abstract: There is disclosed a phenol resin foam comprising a phenol resin, a hydrocarbon having 6 or less carbon atoms, and at least one halogenated hydroolefin selected from the group consisting of hydrofluoroolefins and hydrochlorofluoroolefins, and the phenol resin foam having the density of 10 kg/m3 or more and 150 kg/m3 or less, wherein the sum of the content of the hydrocarbon having 6 or less carbon atoms and the content of the hydrogenated hydroolefin is from 0.23 to 0.90 mol, the content of the hydrocarbon having 6 or less carbon atoms is from 0.03 to 0.85 mol, and the content of the halogenated hydroolefin is from 0.05 to 0.85 mol, per 22.4×10?3 m3 of spatial volume in the phenol resin foam.

Abstract: A phenolic resin foam laminated sheet comprising a phenolic resin foam; and a face material for covering a surface of the phenolic resin foam, wherein the phenolic resin foam contains a hydrocarbon, a chlorinated aliphatic hydrocarbon or a combination thereof, a density of the phenolic resin foam is 10 kg/m3 or higher and 100 kg/m3 or lower, an average cell diameter of the phenolic resin foam is 5 ?m or larger and 200 ?m or smaller, a closed cell content of the phenolic resin foam is 85% or higher and 99% or lower, and an absolute value of a dimensional charge rate of the phenolic resin foam after 70° C. for 48 hours is 0.49% or lower.