Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1985-12-02
1988-08-30
Brown, J. R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 183, 536120, 568620, C07H 100
Patent
active
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.
Hirasawa Yoji
Stepto Robert F. T.
Still Richard H.
Brown J. R.
Nippon Paint Company Limited
Peselev Elli
The University of Manchester Institute of Science and Technology
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