1,3-Isobenzofurandione, polymer with 2-(hydroxymethyl)-2-methyl-1,3-propanediol, 4-(1,1-dimethylethyl)benzoate nonanoate 67989-21-3 68186-48-1 68936-79-8 p-tert-Butyl benzoic acid, trimethylolethane, pelargonic acid, phthalic anhydride polymer