Method of making a polyether using a double metal cyanide complex compound

• US 3,278,458 A
• Filed: 02/14/1963
• Issued: 10/11/1966
• Est. Priority Date: 02/14/1963
• Status: Expired due to Term

• Current Assignee: Joseph Belner Robert
• Original Assignee: Joseph Belner Robert
• Inventors: JOSEPH BELNER ROBERT
• Application Number:
  US04/258,595
• Time in Patent Office: 1,335 Days
• US Class Current: 528/412
• CPC Class Codes: B01J 27/26 Cyanides
• CPC Class Codes: B60C 1/00 Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• CPC Class Codes: B60C 1/0016 Compositions of the tread
• CPC Class Codes: B60C 1/0025 Compositions of the sidewalls
• CPC Class Codes: B60C 11/00 Tyre tread bands; Tread patterns; Anti-skid inserts
• CPC Class Codes: C07F 17/00 Metallocenes
• CPC Class Codes: C08G 65/2663 Metal cyanide catalysts, i.e. DMC's

Claims

1. THE METHOD FOR MAKING A POLYETHER WHICH COMPRISES MIXING AT LEAST ONE POLYMERIZABLE ORGANIC CYCLIC OXIDE MONOMER HAVING A RING OF FROM 2 TO 3 CARBON ATOMS ANND ONE OXYGEN ATOM WITH A PARTICULATE CATALYST AND POLYMERIZING SAID MONOMER THROUGH ITS CYCLIC OXIDE GROUP TO FORM A POLYETHER IN ADMIXTURE WITH SAID CATALYST, SAID CATALYST BEING USED IN A MINOR AMOUNT BY WEIGHT SUFFICIENT TO POLYMERIZE SAID MONOMER TO FORM SAID POLYMER AND COMPRISING A DOUBLE METAL CYANIDE COMPLEX COMPOUND WHEREIN ONE OF THE METALS OF SAID COMPLEX COMPOUND IS SELECTED FROM THE GROUP CONSISTING OF ZN(II), FE(II), FE(III), CO(II), NI(II), MO(IV), MO(VI), AL(III), V(IV), V(V), SR(II), W(IV), W(VI), MN(II), AND CR(III) AND MIXTURES THEREOF, AND WHEREIN THE OTHER METAL OF SAID COMPLEX COMPOUND IS A METAL SELECTED FROM THE GROUP CONSISTING OF FE(II), FE(III), CO(II), CO(III), CR(II), CR(III), MN(II), MN(III), V(IV), AND V(V) AND MIXTURES THEREOF.