POLYOL AND METHOD OF MAKING POLYOL USING SOY-BASED POWDER
A method is provided for preparing a polyol from a soy-based precursor powder wherein the powder exhibits excellent solubility as compared to soy polyols in the oil form, and a process for the use of the soy-based polyol thus prepared for the further preparation of polyurethane.
1 . A method for making a polyol useful in preparing a polyurethane comprising:
mixing a soy-based precursor powder with a solvent, the soy-based precursor powder having increased solubility as compared to a soy oil polyol.
2 . The method of claim 1 wherein the solvent is water.
3 . The method of claim 1 wherein the soy-based precursor powder is about 97% fat free.
4 . The method of claim 1 wherein the ratio of soy-based precursor powder to water is about 6 parts:1 part.
5 . A process for the preparation of polyurethane comprising the steps of:
providing an A side component comprising an isocyanate;
providing a soy-based precursor powder;
mixing a soy-based precursor powder with a solvent to produce a polyol as a B side component;
reacting the A side component and B side component to form a polyurethane.
6 . The process of claim 5 wherein the A side component is MDI, NDI, TDI or HDI.
7 . The process of claim 5 wherein the polyurethane is comprised of about a 1 to 1 ratio mix of polyisocyanate to polyol.
8 . The process of claim 5 wherein the soy-based precursor powder is about 97% fat free.
9 . The process of claim 5 wherein the solvent is water.
10 . The process of claim 5 where the B side component further comprises up to about 50% of one or more fire retardants.
11 . The process of claim 5 wherein the B side component further comprises from about 0.5% to about 3% of one or more surfactants.
12 . The process of claim 5 wherein the B side component further comprises up to about 60% of a blowing agent.
13 . The process of claim 5 wherein the B side component further comprises one or more cell openers.
14 . The process of claim 5 wherein the B side component further comprises up to about 10% of one or more catalysts.
15 . The process of claim 5 wherein the A side to B side ratio is about 102 parts:100 parts.
16 . The process of claim 5 wherein the B side component further comprises one or more surfactants, blowing agents and catalysts.