Patent ID: 11919844
Assignee: ORIENTAL UNION CHEMICAL CORP.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 6:
7. The method for fabricating polyols according to claim 1, wherein said double-metal-cyanide compound is a product of an reaction of at least one metal salt and at least one metal cyanide salt, and
wherein said metal salt has a general formula expressed by chemical formula (II):

M(X)n  (II)

wherein M in chemical formula (II) is selected from a group consisting of bivalent zinc (Zn(II)), bivalent iron (Fe (II)), bivalent nickel (Ni (II)), bivalent manganese (Mn (II)), bivalent cobalt (Co (II)), bivalent tin (Sn (II)), bivalent lead (Pb (II)), trivalent iron (Fe (III)), tetravalent molybdenum (Mo (IV)), hexavalent molybdenum (Mo (VI)), trivalent aluminum (Al (III)), pentavalent vanadium (V (V)), tetravalent vanadium (V (IV)), bivalent strontium (Sr (II)), tetravalent tungsten (W (IV)), hexavalent tungsten (W (VI)), bivalent copper (Cu (II)), and trivalent chromium (Cr (III)), and
wherein X is selected from a group consisting of halogens, hydroxyl ion, sulfate ion, carbonate ion, cyanide ion, isocyanide ion, isothiocyanate ion, carboxylate ion, and nitrate ion, and
wherein n equals 1-3 and charges in chemical formula (II) are in balance, and
wherein said metal cyanide salt has a general formula expressed by chemical formula (III):

(M′)aM(CN)b(A)c  (III)

wherein M in chemical formula (III) is selected from a group consisting of bivalent iron (Fe (II)), trivalent iron (Fe (III)), bivalent cobalt (Co (II)), trivalent cobalt (Co (III)), bivalent chromium (Cr (II)), trivalent chromium (Cr (III)), bivalent manganese (Mn (II)), trivalent manganese (Mn (III)), trivalent iridium (Ir (III)), bivalent nickel (Ni (II)), trivalent rhodium (Rh (III)), bivalent ruthenium (Ru (II)), tetravalent vanadium (V (IV)), and pentavalent vanadium (V (V)), and
wherein M′ is selected from a group consisting of alkali metal ions and alkaline earth metal ions, and
wherein A is an anion which is selected from a group consisting of halides, hydroxyl ion, sulfate ion, carbonate ion, cyanide ion, oxalate ion, thiocyanate isocyanide ion, isothiocyanate ion, carboxylate ion, and nitrate ion, and
wherein each of a and b is an integer greater than 1, and
wherein a sum of charges of groups subscripted by a, b and c is equal to a number of charges of M.