Claims
- 1. An aqueous polyurethane dispersion comprising an isocyanate terminated prepolymer prepared from a formulation including a polyisocyanate and a polyol mixture, wherein the polyol mixture includes at least one aliphatic mono, di or polyhydroxy compound which has an aliphatic side chain substituent which contains from 5 to 30 carbon atoms and wherein the aliphatic mono, di or polyhydroxy compound which has an aliphatic side chain substituent is present at a concentration of from 0.5 to 10 weight percent of the polymer.
- 2. The aqueous polyurethane dispersion of claim 1 wherein the polyisocyanate is MDI.
- 3. The aqueous polyurethane dispersion of claim 1 wherein the aliphatic mono, di or polyhydroxy compound which has an aliphatic side chain substituent which contains from 5 to 30 carbon atoms is a glycerol monoester.
- 4. The aqueous polyurethane dispersion of claim 3 wherein the glycerol monoester is selected from the group consisting of glycerol monooleate, glycerol monobehenate, glycerol monotallate, glycerol monostearate, glycerol monopalmitate, trimethylolpropane monostearate, and mixtures thereof.
- 5. The aqueous polyurethane dispersion of claim 1 wherein the aliphatic mono, di or polyhydroxy compound which has an aliphatic side chain substituent which contains from 5 to 30 carbon atoms is present at a concentration of from 1.0 to 4.5 weight percent of the polymer.
- 6. The aqueous polyurethane dispersion of claim 5 wherein the aliphatic mono, di or polyhydroxy compound which has an aliphatic side chain substituent which contains from 5 to 30 carbon atoms is present at a concentration of from 1.5 to 2.5 weight percent of the polymer.
- 7. The aqueous polyurethane dispersion of claim 1 wherein the dispersion is prepared with an external surfactant.
- 8. The aqueous polyurethane dispersion of claim 7 wherein the external surfactant is a triethanolamine salt of dodecyl benzene sulfonic acid.
- 9. The aqueous polyurethane dispersion of claim 1 wherein the polyol mixture includes a polyether polyol.
- 10. The aqueous polyurethane dispersion of claim 1 wherein the dispersion is prepared in the substantial absence of an organic solvent.
- 11. The aqueous polyurethane dispersion of claim 1 wherein the dispersion is compounded with a filler.
- 12. The aqueous polyurethane dispersion of claim 11 wherein the filler is selected from the group consisting of milled glass, calcium carbonate, aluminum trihydrate, talc, bentonite, antimony trioxide, kaolin, fly ash, and mixtures thereof.
- 13. The aqueous polyurethane dispersion of claim 11 wherein the filler is calcium carbonate.
- 14. A moisture resistant polyurethane polymer comprising a polymer layer prepared by applying a layer of the polyurethane dispersion of claim 1 to a substrate and allowing the dispersion to cure.
- 15. A moisture resistant textile comprising: a textile and adherent thereto a polymer of claim 14.
CROSS REFERENCE STATEMENT
[0001] This application claims the benefit from U.S. Provisional Application No. 60/112702 filed Dec. 18, 1998.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60112702 |
Dec 1998 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09453700 |
Dec 1999 |
US |
Child |
10324378 |
Dec 2002 |
US |