Viscosity-stable isocyanate-terminated prepolymers and polyoxyal

Details Viscosity-stable isocyanate-terminated prepolymers and polyoxyal Viscosity-stable isocyanate-terminated prepolymers and polyoxyal

1998-06-01

1999-07-06

Cooney, Jr., John M.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 52, 528 55, 528 56, 528 76, 528 77, 560 25, 560 26, 560158, 560330, 560358, 560359, 560360, C08G 1810

Patent

active

059198885

ABSTRACT:
Polyoxyalkylene polyols containing double metal cyanide complexes or residues thereof as are produced during the preparation of polyoxyalkylene polyols by the double metal cyanide complex catalyzed oxyalkylation of a suitably functional hydric initiator are stable without catalyst removal. Isocyanate-terminated prepolymers prepared from such polyols are surprisingly viscosity-stable relative to similar prepolymers prepared from polyols not containing double metal cyanide complexes or residues thereof.

REFERENCES:
patent: 3427256 (1969-02-01), Milgrom
patent: 3829505 (1974-08-01), Herold
patent: 4156759 (1979-05-01), Hostettler
patent: 4355188 (1982-10-01), Herold et al.
patent: 4721818 (1988-01-01), Harper et al.
patent: 4987271 (1991-01-01), Watabe et al.
patent: 5010047 (1991-04-01), Schuchardt
patent: 5114619 (1992-05-01), Heuvelsland
patent: 5132387 (1992-07-01), Baron et al.
patent: 5158922 (1992-10-01), Hinney et al.
patent: 5248833 (1993-09-01), Hinney et al.
patent: 5356976 (1994-10-01), Dubs et al.
patent: 5811829 (1998-09-01), Lawrey et al.
Griffith et al. "The Hutooxidation of Polylpropylene Oxidels," Eur. Polym. J. 29 (1993) 437.
Herold et al. "Hexacyanocobaltate Salt Complexes as Cataylsts for Epoxide Polymerizations," Adv. Chem. Ser. No. 128 (1973) pp. 208-229.
Schuchardt et al., "Preparation of High Molecular Weight Polyols Using Double Metal Cyanide Catalysts," 32nd Annual Polyurethane Tech./Mark, Conf. Oct. 1989.

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