Tris (hydroxymethyl) phosphine oxide based polyester polyol and a resin composition obtained therefrom

1. A tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound having the formula (I):

wherein

R 1 is selected from a combination of linear, branched, saturated, unsaturated, cyclic and/or non-cyclic carbon chains, aliphatic hydrocarbons, araliphatic hydrocarbons, aromatic hydrocarbons and combinations thereof, optionally interrupted by one or more oxygen atoms, nitrogen atoms and/or sulphur atoms, and optionally comprising any functional group selected from hydroxy, ether, halogen, carbonyl, and/or carboxyl groups and combinations thereof;

n is in a range of from 1 to 25;

m is in a range of from 0 to 25; and

R 2 is a hydrogenated triazine group or derivative thereof.

2. The tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 1 , wherein n is in a range of from 1 to 3.

3. The tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 1 , wherein m is in a range of from 1 to 3.

4. The tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 1 , wherein each R 1 is an alkyl group.

5. The tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 1 , wherein the molecular weight of the polyfunctional polyol is in an amount ranging from about 100 to about 1500.

6. A resin composition comprising:

(a) a polyfunctional isocyanate; and

(b) an isocyanate reactive composition comprising

(b1) a polyfunctional polyol composition and a catalyst composition; and optionally

(b2) a polyfunctional amine;

wherein the polyfunctional polyol composition comprises the tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 1 .

7. The resin composition of claim 6 , wherein the resin composition has a NCO index in the range from about 0.7 to about 5.

8. The resin composition of claim 6 , wherein the polyfunctional isocyanate is a polymeric MDI or an MDI isomer mixture or a mixture thereof.

9. The resin composition of claim 6 , wherein the catalyst composition comprises an amine catalyst and/or a trimerization catalyst.

10. The resin composition of claim 6 , wherein the polyfunctional amine (b2) is a polyetheramine.

11. A process for making a resin composition comprising adding an isocyanate reactive composition to a polyfunctional isocyanate, wherein the isocyanate reactive composition comprises:

a polyfunctional polyol composition and a catalyst composition; and optionally

a polyfunctional amine;

wherein the polyfunctional polyol composition comprises a tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound having the formula (I):

wherein

R 1 is selected from a combination of linear, branched, saturated, unsaturated, cyclic and/or non-cyclic carbon chains, aliphatic hydrocarbons, araliphatic hydrocarbons, aromatic hydrocarbons and combinations thereof, optionally interrupted by one or more oxygen atoms, nitrogen atoms and/or sulphur atoms, and optionally comprising any functional group selected from hydroxy, ether, halogen, carbonyl, and/or carboxyl groups and combinations thereof;

n is in a range of from 1 to 25; and

m is in a range of from 0 to 25; and

R 2 is a hydrogenated triazine group or derivative thereof.

12. A rigid foam product prepared from the resin composition of claim 6 .

13. A tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound having the formula (III):

14. A resin composition comprising:

(a) a polyfunctional isocyanate; and

(b) an isocyanate reactive composition comprising

(b1) a polyfunctional polyol composition and a catalyst composition; and optionally

(b2) a polyfunctional amine;

wherein the polyfunctional polyol composition comprises the tris (hydroxymethyl) phosphine oxide based polyfunctional polyester polyol compound of claim 13 .