Viscosity-stable isocyanate-terminated prepolymers and polyoxyal

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

1999-02-09

2000-03-14

Cooney, Jr., John M.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218227, 25218229, 528 52, 528 55, 528 56, 528 59, 528 76, 528 77, 560 25, 560 26, 560158, 560330, 560358, 560359, 560360, C09K 302

Patent

active

060368799

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.

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