Isobutylene oxide polyols

Details Isobutylene oxide polyols Isobutylene oxide polyols

1989-02-14

1991-03-26

Foelak, Morton

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

Organic compounds

Oxygen containing

568619, 568621, 568624, 568625, C07C 4103, C07C 4310, C07C 4311

Patent

active

050031112

ABSTRACT:
Novel polyether polyols are disclosed which contain an internal block of isobutylene oxide or a mixture of isobutylene oxide and a mono- or unsaturated alkylene oxide and an end-cap of a mono- or unsubstituted alkylene oxide to provide reactive primary or secondary hydroxyl end-groups. The polyether polyols are useful intermediates in the production of segmented elastomers. A process for the preparation of the novel polyols is also described in which an alkali metal catalyst and a crown ether cocatalyst are employed to afford polyols containing relatively low levels of unsaturation.

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Davis et al., J. Am. Chem. Soc., 56, 883 (1934), see p. 4 of Amendment (first paragraph).
Gibson et al., J. Appl. Polymer, Sci, 14, 1059 (1970)-see p. 4 of Amendment (last paragraph).
Koinuma et al., Makromol Chem., 183, (1383), 1982.

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