Claims
- 1. A joint compound composition comprising a filler, a binder, a thickener and one or more synthetic polymeric waxes, wherein each of said one or more waxes is at least slightly soluble in water and forms a solid at room temperature.
- 2. The composition of claim 1 wherein said joint compound comprises at least 50 wt % of said filler on a dry basis.
- 3. The composition of claim 1 wherein each of said polymeric waxes has an average melting temperature from about 80° F. (27° F.) to 150° F. (66° C.).
- 4. The composition of claim 1 further comprising resin microspheres having a density of from about 0.56 lb/ft3 (0.009 g/cc) to about 8.1 lb/ft3 (0.13 g/cc).
- 5. The composition of claim 1 wherein said binder comprises a latex binder.
- 6. The composition of claim 1 wherein said wax is present in a concentration of about 0.1 wt % to about 8.0 wt % on a dry basis.
- 7. The composition of claim 1 wherein each of said one or more synthetic polymeric waxes comprises at least one water soluble polymer formed by the addition reaction of water with at least one of propylene oxide, ethylene oxide or alkoxy-substituted ethylene oxide.
- 8. The composition of claim 7 wherein said filler comprises at least one of calcium carbonate, calcium sulfate dihydrate or calcium sulfate hemihydrate.
- 9. The composition of claim 7 wherein at least one of said synthetic waxes comprises polyethylene glycol.
- 10. The composition of claim 9 wherein each of said polyethylene glycols has a melting point of from about 110° F. (43° C.) to about 150° F. (66° C.).
- 11. The composition of claim 9 wherein said polyethylene glycol is present in a concentration of about 4.0 wt % to about 8.0 wt % on a dry basis.
- 12. The composition of claim 7 wherein at least one of said one or more synthetic waxes comprises methoxy polyethylene glycol.
- 13. The composition of claim 12 wherein said methoxy polyethylene glycol has a melting point of from about 80° F. (27° C.) to about 129° F. (55° C.).
- 14. The composition of claim 12 wherein said methoxy polyethylene glycol is present in a concentration of about 2.0 wt % to about 4.0 wt % on a dry basis.
- 15. The composition claim 12 wherein one of said one or more synthetic polymeric waxes comprises a methoxy polyethylene glycol blend having an avenge melting point from about 95° F. (35° C.) to about 115° F. (46° C.).
- 16. The composition of claim 12 wherein said synthetic polymeric waxes comprises a blend of polyethylene glycol and methoxy polyethylene glycol.
- 17. The composition of claim 15 wherein said blend comprises at least two methoxy polyethylene glycol compounds.
- 18. The composition of claim 1 wherein said polymeric wax is present in a concentration of about 0.5 wt % to about 6.0 wt % on a dry basis.
- 19. A method of finishing a joint between adjacent gypsum board panels comprising applying a composition to said joint, said composition comprising water, a filler, a binder, a thickener and at one or more synthetic polymeric waxes, each of which is at least slightly soluble in water and forms a solid at room temperature.
- 20. The method of claim 19 further comprising taping said joint.
- 21. The method of claim 19 further comprising allowing said composition to dry and sanding said joint.
- 22. The method of claim 19 wherein one of said said one or more synthetic polymeric waxes comprises a methoxy polyethylene glycol having a melting point of from about 80° F. (27° C.) to about 129° F. (55° C.).
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. Ser. No. 09/502,740, entitled “A Plaster Mixture for Forming a Machinable Composition,” filed Feb. 11, 2000, U.S. Pat. No. 6,355,099, which is hereby incorporated by reference, and claims the benefit of U.S. Provisional Application No. 60/284,986, filed Apr. 19, 2001, herein incorporated by reference.
US Referenced Citations (20)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO0034200 |
Jun 2000 |
WO |
Non-Patent Literature Citations (1)
Entry |
Chemical Abstract No. 105:28885, abstract of Hungarian; Patent Specification No. 34528 (Mar. 1985). |
Provisional Applications (1)
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Number |
Date |
Country |
|
60/284986 |
Apr 2001 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/502740 |
Feb 2000 |
US |
Child |
10/093771 |
|
US |