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Aromatic Polyester Polyol Royal Industries In comparison with PU based Aromatic Polyester Polyol, the PU based polyesters are more resistant to oil, grease, On the other hand PU based esters are more sensitive to hydrolysis and microbiological attack. The high mechanical properties of PU based Aromatic Polyester Polyol can be explained by the greater compatibility between polar Aromatic Polyester Polyol flexible segments and polar rigid segments, the Aromatic Polyester Polyol sult of the largest hydrophobic portion and small amounts of ester groups. Aromatic Polyester Polyol are dispersions of vinyl polymers in polyadipats based Aromatic Polyester Polyol stabilized by a dispersant. Aromatic Polyester Polyol. Adipic acid based Aromatic Polyester Polyol is used in applications where flexibility is wanted, as in flexible foams and elastomers. Phthalic acids based polyols, have rigid chains and are used in rigid foams and in high performance coatings
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