Aromatic polyols made from recycled polyethylene terephthalate w

Details Aromatic polyols made from recycled polyethylene terephthalate w Aromatic polyols made from recycled polyethylene terephthalate w

1982-11-22

1984-03-27

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 485, 521172, 521173, 252182, 5283081, C08G 1814

Patent

active

044395507

ABSTRACT:
Mixtures of aromatic polyols containing ester functionalities suitable for use as polyol extenders in rigid foams prepared by reacting dibasic acid residues with an alkylene glycol residue, 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.

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