68479-75-4 Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with 1,3-diisocyanato-2-methylbenzene and 2,4-diisocyanato-1-methylbenzene
68492-72-8 1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, hexanedioic acid and 1,6-hexanediol