1,4-Benzenedicarboxylic acid polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, dimethyl 1,4-benzenedicarboxylate, formaldehyde, 2,5-furandione, α,α'-[(1-methylethylidene)di-4,1-phenylene]bis[ω-hydroxypoly(oxy-1,2-ethanediyl)], α,α'-[(1-me [ 213077-22-6 ]