68683-44-3 9,12-Octadecadienoic acid (9Z,12Z)-, dimer, polymer with 11-aminoundecanoic acid and 4,4'-(1,3-propanediyl)bis(piperidine) Linoleic acid dimer, 11-aminoundecanoic acid, 4,4'-(1,3-propanediyl)bispiperidine polymer