Polyether-containing double metal cyanide catalysts

Details Polyether-containing double metal cyanide catalysts Polyether-containing double metal cyanide catalysts

1995-08-22

1996-08-13

Pal, Asok

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

Catalyst or precursor therefor

Organic compound containing

502154, 502159, B01J 3100

Patent

active

055456014

ABSTRACT:
Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 5 to about 80 wt. % of a polyether polyol that has tertiary hydroxyl groups. Compared with other DMC catalysts, those of the invention have excellent activity for epoxide polymerization, and they can be used to make polyols having very low unsaturation even at high epoxide polymerization temperatures.

REFERENCES:
patent: 3278457 (1966-10-01), Milgrom
patent: 3278458 (1966-10-01), Belner
patent: 3404109 (1968-10-01), Milgrom
patent: 3427256 (1969-02-01), Milgrom
patent: 3538043 (1970-11-01), Herold
patent: 3829505 (1974-08-01), Herold
patent: 3900518 (1975-08-01), Milgrom
patent: 3941849 (1976-03-01), Herold
patent: 4472560 (1984-09-01), Kuyper et al.
patent: 5145883 (1992-09-01), Saito et al.
patent: 5158922 (1992-10-01), Hinney et al.
patent: 5223583 (1993-06-01), Higuchi et al.
patent: 5482908 (1996-01-01), Le-Khac
J. L. Schuchardt et al., Preparation of High Molecular Weight Polyols Using Double Metal Cyanide Catalylsts, "Proceedings of the SPI, 32nd Annual Polyurethane Technical/Marketing Conference", Oct. 1989, p. 360.

Affiliated with

Also associated with

Rating

Polyether-containing double metal cyanide catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyether-containing double metal cyanide catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyether-containing double metal cyanide catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1047858