Highly active double metal cyanide complex catalysts

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

1997-01-07

1998-07-14

Wilson, Donald R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

528412, 528413, 568620, C07C 4103, C07C 4310, C08G 5968

Patent

active

057805849

ABSTRACT:
Highly active double metal cyanide (DMC) complex catalysts and methods for making them are disclosed. The catalysts contain less than about 0.2 moles of metal salt per mole of DMC compound in the catalyst, and unlike other highly active DMC catalysts, are substantially crystalline. Polyether polyols made from the catalysts have low unsaturation and are useful for making many types of polyurethane products.

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: 3427334 (1969-02-01), Belner
patent: 3427335 (1969-02-01), Herold
patent: 3538043 (1970-11-01), Herold
patent: 3900518 (1975-08-01), Milgrom
patent: 3941849 (1976-03-01), Herold
patent: 4472560 (1984-09-01), Kuyper et al.
patent: 4477589 (1984-10-01), Vander Hulst et al.
patent: 4843054 (1989-06-01), Harper
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: 5470813 (1995-11-01), Le-Khac
patent: 5482908 (1996-01-01), Le-Khac
patent: 5498583 (1996-03-01), Le-Khac
patent: 5523386 (1996-06-01), Le-Khac
patent: 5527880 (1996-06-01), Le-Khac
patent: 5536883 (1996-07-01), Le-Khac
patent: 5596075 (1997-01-01), Le-Khac
Lee et al., "Handbook of Epoxy Resins", McGraw-Hill Book Co., New York, p. 1/1 (1982 reissue).
J.L. Schuchandt et al., "Preparation of High Molecular Weight Polyols Using Double Metal Cyanide Catalysts," Proceedings of the SPI, 32nd Annual Polyurethane Technical/Marketing Conference, Oct. 1989, p. 360.

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