Patent ID: 9266997
Filing Date: 2016-02-23
CPC Classification: C08G

Claim Text:
1. A polyurethane foam comprising the product of a reaction mixture comprising: a polyol component comprising a poly(phenylene ether) 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; wherein the poly(phenylene ether) comprises a hydroxy-diterminated poly(phenylene ether) having the structure wherein each occurrence of Q 1 is independently halogen, C 1 -C 12 hydrocarbylthio, C 1 -C 12 hydrocarbyloxy, C 2 -C 12 halohydrocarbyloxy wherein at least two carbon atoms separate the halogen and oxygen atoms, or unsubstituted or substituted C 1 -C 12 hydrocarbyl provided that the hydrocarbyl group is not tertiary hydrocarbyl; each occurrence of Q 2 is independently hydrogen, halogen, C 1 -C 12 , hydrocarbylthio, C 1 -C 12 hydrocarbyloxy, C 2 -C 12 halohydrocarbyloxy wherein at least two carbon atoms separate the halogen and oxygen atoms, or unsubstituted or substituted C 1 -C 12 hydrocarbyl provided that the hydrocarbyl group is not tertiary hydrocarbyl; each occurrence of R 1 and R 2 is independently hydrogen, halogen, C 1 -C 12 hydrocarbylthio, C 1 -C 12 hydrocarbyloxy, C 2 -C 12 halohydrocarbyloxy wherein at least two carbon atoms separate the halogen and oxygen atoms, or unsubstituted or substituted C 1 -C 12 hydrocarbyl provided that the hydrocarbyl group is not tertiary hydrocarbyl; m and n are independently 0 to 20, provided that the sum of m and n is at least 3; and Y is selected from wherein each occurrence of R 3 -R 6 is independently hydrogen or C 1 -C 12 hydrocarbyl; 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 a density of 0.01 to 0.16 gram/centimeter