Polyurethane foam and associated method and article
A technology of polyurethane foam and blowing agent, applied in the field of polyurethane foam and related and products
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Embodiment approach 1
[0059] Embodiment 1: A polyurethane foam comprising the product of a reaction mixture comprising: a polyol comprising a poly(ethylene glycol) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule phenyl ether); an aromatic isocyanate compound having an average of at least 2 isocyanate groups per molecule; and a blowing agent; wherein the reaction mixture is characterized by an isocyanate index of 65 to 95; and wherein the polyurethane foam has an isocyanate index according to ASTM D3574- 08 Test A Density of 0.01 to 0.16 g / cm3 measured at 23°C.
Embodiment approach 2
[0060] Embodiment 2: The polyurethane foam of Embodiment 1, wherein the poly(phenylene ether) is a copolymer comprising monomers of monohydric and dihydric phenols.
Embodiment approach 3
[0061] Embodiment 3: The polyurethane foam of Embodiment 2, wherein the monohydric phenol comprises 2,6-dimethylphenol and the dihydric phenol comprises 2,2-bis(3,5-dimethyl-4-hydroxybenzene base) propane.
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