Aromatic polyols made from polyethylene terephthalate scrap, gly

Details Aromatic polyols made from polyethylene terephthalate scrap, gly Aromatic polyols made from polyethylene terephthalate scrap, gly

1983-07-15

1985-03-19

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

521131, 521159, 521172, 560 89, 560 92, 560 94, C07C 6908, C07C 6976, C07C 6980, C07C 6982

Patent

active

045060908

ABSTRACT:
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.

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patent: 4237238 (1980-12-01), De Guiseppi et al.
patent: 4246365 (1981-01-01), Wiedermann et al.
patent: 4435592 (1984-03-01), Reichel

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