Urea catalyst for preparation of sucrose polyols useful for rigi

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

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536 183, 536 186, 521115, 521167, C08G 1814, C08G 6526

Patent

active

048208108

ABSTRACT:
Catalytic quantities of urea are used in the alkoxylation of aqueous sucrose to prepare low color polyols useful in rigid polyurethane foams.

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Le Maistre et al., "The Reaction of Sucrose with Ethylene Oxide," J. Org. Chem., 13, pp. 782-785 (1948).
Tousignant et al., "Reaction of Ethylene Oxide with Urea," J. Org. Chem. 22, pp. 166-167.

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