Synonyms: Fatty acids, C16-18 and C18-unsatd., polymers with ethylene glycol,maleic anhydride, pentaerythritol and phthalic anhydride (C16-18) and (C18) Unsaturated alkylcarboxylic acids, phthalic anhydride, pentaerythritol, ethylene glycol, maleic anhydride polymer fatty acids, c16-18 and c18-unsatd., polymers with ethylene glycol, maleic anhy dride, pentaerythritol and phthalic anhydride fatty acids, c16-18 and c18-unsatd., polymers withethylene glycol, maleic anhydride, pentaerythritol and phthalicanhydride Fatty acids,C16-18 and C18-unsatd.,polymers with ethylene glycol,maleic anhydride,pentaerythritol and phthalic anhydride