Process for preparing polyols

Details Process for preparing polyols Process for preparing polyols

1979-12-26

1981-08-04

Nielsen, Earl A.

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

Organic compounds

Oxygen containing

528 76, 528413, 568608, 568619, 568622, 568589, 568620, 568623, 568624, C08G 6528

Patent

active

042823870

ABSTRACT:
The invention describes an improved process for preparing polyols by reacting a mono-epoxy compound such as propylene oxide with a hydroxyl-containing initiator compound such as glycerine in the presence of a catalyst, the improvement being that the catalyst is added in the form of a calcium, strontium or barium salt of an organic acid such as acetic acid.
Polyols prepared by this process can be employed to prepare polyurethanes without removing the catalyst.

REFERENCES:
patent: 2341565 (1944-02-01), Lyman et al.
patent: 2923690 (1960-02-01), Bedoit
patent: 2934505 (1960-04-01), Gurgiolo
patent: 3031439 (1962-04-01), Bailey
patent: 3285968 (1966-11-01), Bradley
patent: 3755197 (1973-08-01), Hsieh
Saunders & Frisch, Polyurethanes: Chemistry and Technology, Part I Chemistry, pp. 42 & 43 (1962).
Takahashi et al., "AlEt.sub.3 -Metal Soap Catalysts for Polymerization of Epoxides," J. Poly. Sci. (A-1) 1, 2015-2019 (1966).
Bailey et al., Poly (ethylene oxide), Academic Press, N.Y., 1976, pp. 13-14.

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