28135-24-2 66846-90-0 Furfuryl alcohol, formaldehyde, phenol, urea polymer Furfuryl alcohol, phenol, formaldehyde, urea polymer Furfuryl alcohol, phenol, urea, formaldehyde polymer Furfuryl alcohol, urea, phenol, formaldehyde resin Phenol, formaldehyde, urea, furfuryl alcohol polymer Phenol, furfuryl alcohol, urea, formaldehyde polymer Urea, polymer with formaldehyde, 2-furanmethanol and phenol