Aromatic polyols made from polyethylene terephthalate scrap, glycols and aromatic carbonyl-containing compounds

摘要

Mixtures of aromatic polyols containing ester functionalities suitable for use as polyol extenders in rigid foams prepared by reacting aromatic carbonyl-containing compounds with an alkylene glycol, the reaction product of which is reacted with recycled polyethylene terephthalate are described. Surprisingly, the process is non-catalytic. These novel polyols may be blended with conventional polyols to yield excellent rigid foams, thus serving as useful polyol extenders.