Polyether polyol composition and use thereof

1. A method for producing a polyether polyol composition, which comprises:

producing a polyether polyol by ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst in such an amount that the metals derived from the composite metal cyanide complex catalyst would be from 1 to 30 ppm based on the finally formed polyether polyol, and then

adding a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/or a partial ester of such a phosphoric acid, in an amount of from 0.5 to 100 ppm based on the polyether polyol,

without removing the composite metal cyanide complex catalyst.

2. A method for producing a polyether polyol composition which comprises:

producing a polyether polyol containing 1-30 ppm of metals from a composite metal cyanide complex by a ring-opening polymerization of an alkylene oxide in the presence of a amount of a composite metal cyanide complex catalyst sufficient to provide 1-30 ppm of said metals in the polyether polyol that is produced, and

adding a phosphoric acid compound comprising a phosphoric acid selected from the group consisting of at least one orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and a partial ester thereof, in an amount of from 0.5 to 100 ppm based on the polyether polyol;

wherein said polyether polyol composition comprises:

a polyether polyol,

0.5 to 100 ppm based on the amount of polyether polyol of at least one phosphoric acid compound selected from the group consisting of at least one orthophosphoric acid, polyphosphoric acid, polymetaphosphoric acid, and a partial ester of orthophosphoric acid, polyphosphoric acid, or polymetaphosphoric acid, and

1 to 30 ppm based on the amount of polyether polyol of at least one metal derived from a composite metal cyanide complex catalyst; and is produced by a ring-opening polymerization of an alkylene oxide having at least three carbons in the presence of a composite metal cyanide complex.

3. A method for producing an isocyanate group-terminated prepolymer, comprising:

performing a ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst to form a polyether polyol containing from 1 to 30 ppm of metals derived from the composite metal cyanide complex based on the polyether polyol,

adding to said polyether polyol a phosphoric acid compound selected from the group consisting of at least one orthophosphoric acid, polyphosphoric acid, polymetaphosphoric acid, and a partial ester thereof, in an amount of from 0.5 to 100 ppm based on the polyether polyol, and

reacting the polyether polyol composition with a polyisocyanate to form an isocyanate group-terminated prepolymer;

wherein said polyether polyol composition is reacted with said polyisocyanate without first removing the composite metal cyanide catalyst.

4. A method for producing a polyurethane, comprising:

performing a ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst to form a polyether polyol composition containing from 1 to 30 ppm of metals derived from said composite metal cyanide complex based on the polyether polyol,

adding to said polyether polyol a phosphoric acid compound selected from the group consisting of at least one orthophosphoric acid, polyphosphoric acid, polymetaphosphoric acid, and a partial ester thereof, in an amount of from 0.5 to 100 ppm based on the polyether polyol, and

reacting the polyether polyol composition with a polyisocyanate to form a polyurethane;

wherein said polyether polyol composition is reacted with said polyisocyanate without first removing the composite metal cyanide catalyst.