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

• US 3,278,457 A
• Filed: 02/14/1963
• Issued: 10/11/1966
• Est. Priority Date: 02/14/1963
• Status: Expired due to Term

• Current Assignee: Jack Milgrom
• Original Assignee: Jack Milgrom
• Inventors: JACK MILGROM
• Application Number:
  US04/258,530
• Time in Patent Office: 1,335 Days
• US Class Current: 528/412
• CPC Class Codes: B01J 2231/10 Polymerisation reactions involving at least dual use catalysts, e.g. for both oligomerisation and polymerisation
• CPC Class Codes: B01J 2531/0205 Bi- or polynuclear complexes, i.e. comprising two or more metal coordination centres, without metal-metal bonds, e.g. Cp(Lx)Zr-imidazole-Zr(Lx)Cp
• CPC Class Codes: B01J 2531/24 Strontium
• CPC Class Codes: B01J 2531/26 Zinc
• CPC Class Codes: B01J 2531/56 Vanadium
• CPC Class Codes: B01J 2531/60 Complexes comprising metals of Group VI (VIA or VIB) as the central metal
• CPC Class Codes: B01J 2531/72 Manganese
• CPC Class Codes: B01J 2531/84 Metals of the iron group
• CPC Class Codes: B01J 2531/842 Iron
• CPC Class Codes: B01J 27/26 Cyanides
• CPC Class Codes: B01J 31/1805 the ligands containing nitrogen
• CPC Class Codes: B01J 31/2213 At least two complexing oxygen atoms present in an at least bidentate or bridging ligand
• CPC Class Codes: B01J 31/2226 Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
• 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 AND 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), 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, SAID DOUBLE METAL CYANIDE COMPLEX COMPOUND CONTAINING AT LEAST ONE ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN ACYLIC ALIPHATIC POLYETHER, A SULFIDE, AN AMIDE AND A NITRILE TO IMPROVE THE ACTIVITY OF SAID COMPLEX COMPOUND FOR THE POLYMERIZATION OF SAID MONOMER, AND SAID ORGANIC MATERIAL BEING INERT TO POLYMERIZATION BY SAID COMPOUND.