Highly active double metal cyanide catalysts

Details Highly active double metal cyanide catalysts Highly active double metal cyanide catalysts

1996-08-09

1997-12-02

Wood, Elizabeth D.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502162, 502175, 502200, B01J 2724, B01J 2726, B01J 3106, B01J 3118

Patent

active

056935846

ABSTRACT:
Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, from about 0.1 to about 10 wt. % of an organophosphine oxide, and optionally, a polyether. Compared with other DMC catalysts prepared in the absence of the organophosphine oxide, those of the invention have higher activity for epoxide polymerization, and they give polyols having reduced unsaturation even at high epoxide polymerization temperatures.

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J.L. Schuchardt & S.D. Harper, Proceedings of The SPI, 32nd Annual Polyurethane Tech./Market Conf. Oct. 1989, p. 360 no month available.

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