Production of polymeric polyols

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

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536 183, 536120, 568620, C07H 100

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047678461

ABSTRACT:
Polymeric polyols are prepared by reacting a polyhydroxy initiator compound with an epoxide in the presence of alkali metal hydroxide catalyst used in an amount of at least 10% by mole based on the molar amount of polyhydroxy initiator compounds. The polyols so obtained may be chain extended by reaction with further epoxide in the presence of at least 10% by mole of an alkali metal hydroxide catalyst based on the molar amount of the polymeric polyol.

REFERENCES:
patent: 3317508 (1967-05-01), Winquist et al.
patent: 3370056 (1968-02-01), Yotsuzuka et al.
patent: 3442888 (1969-05-01), Degginger et al.
patent: 3445525 (1969-05-01), Bonmann et al.

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