Catalysts for the polymerization of epoxides and process for the preparation of such catalysts

US4477589A · kind A · utility

Assignee

• SHELL OIL COMPNY · US

Inventors

• Harm van der Hulst · Amsterdam, NL
• George A. Pogany · Amsterdam, NL
• Jan Kuyper · Gibsons, CA

Key dates

• Filing date: Mar 14, 1983
• Grant date: Oct 16, 1984
• Expiry date: Mar 14, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J27/26
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compounds according to formula: EQU M.sup.1.sub.a [M.sup.2 (CN).sub.b (A).sub.c ].sub.d.w M.sup.3 D.sub.e.x H.sub.2 O. y L. z H.sub.n E.sub.m, wherein M.sup.1 represents at least one of Zn(II), Fe(II), Co(II), Ni(ii), Mn(II), Cu(II), Sn(II), or Pb(II); M.sup.2 represents at least one of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV) or V(V); M.sup.3 represents M.sup.1 and/or M.sup.2 ; A, D and E each represent an anion which may be the same or different; L represents an alcohol, aldehyde, ketone, ether, ester, amide, nitrile or sulphide or mixtures thereof; a and d are numbers to satisfy the valency state of M.sup.1 and M.sup.2 in the double metal cyanide part of the general formula I; b and c are integers (b>c) which together with a and d provide the electroneutrality of the double metal cyanide part of the general formula I; e is an integer satisfying the valency state of M.sup.3 ; n and m are integers satisfying the electroneutrality of HE, and PA0 w is a number between 0.1 and 4; PA0 x is a number up to 20; PA0 y is a number between 0.1 and 6, and PA0 z is a number between 0.1 and 5, are novel and can be used as catalysts, preferably togethe…