62570-81-4 9,12-Octadecadienoic acid (9Z,12Z)-, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and 1,3-isobenzofurandione 9,12-Octadecadienoic acid (Z,Z)-, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and 1,3-isobenzofurandione Linoleic acid, pentaerythritol, phthalic anhydride polymer