DOUBLE METAL CYANIDE CATALYSTS CONTAINING FUNCTIONALYZED POLYMERS Russian patent published in 2002 - IPC

Abstract RU 2183989 C2

FIELD: polymerization catalysts. SUBSTANCE: double metal cyanide catalysts suitable for epoxide polymerization is not crystalline from data X-ray powder diffractometry. Catalyst contains double metal cyanide compound, organic complexing agent, and 2-80% of a functionalyzed polymer or its water- soluble salt. Polyols prepared in presence of this catalyst have low degree of unsaturation, low viscosity, and lowered level high-molecular tail fraction. EFFECT: simplified preparation procedure. 4 cl, 3 dwg, 1 tbl, 13 ex

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RU 2 183 989 C2

Authors

Le-Kkhak Bi

Dates

2002-06-27—Published

1997-10-14—Filed