Claims
- 1. A food grade liquid rinse aid composition, suitable for dilution to form an aqueous rinse, the composition consisting essentially of:(a) about 5 to 50 wt-% of a sorbitan fatty acid mono ester containing greater than about 15 moles of alkylene oxide per mole of sorbitan; (b) about 0.2 to 25 wt-% of a defoamer composition selected from the group consisting of an alkali metal or alkaline earth metal salt of a fatty acid, a silicone, a fatty acid ester of glycerol, and mixtures thereof; and (c) about 10 to 95 wt-% of an aqueous diluent; wherein the rinse aid composition is formulated from the above components approved as food additives and displays adequate sheeting properties during a rinse cycle of mechanical warewashing, at a concentration of at least about 50 parts of the sorbitan fatty acid monoester per million parts of the rinse.
- 2. The composition of claim 1 wherein the defoamer comprises an alkali metal or alkaline earth metal salt of a fatty acid.
- 3. The composition of claim 2 wherein the defoamer comprises a sodium or potassium salt of a C8-C20 saturated or unsaturated fatty acid.
- 4. The composition of claim 1 wherein the silicone defoamer comprises a polydimethyl siloxane.
- 5. The composition of claim 4 wherein the defoamer comprises a combination of about 0.01 to 100 parts by weight of a polydimethyl siloxane having an average chain length of 200 to 250 units, per each part by weight of silica.
- 6. The composition of claim 1 wherein the defoamer comprises a C8-C24 fatty acid mono ester of glycerol.
- 7. The composition of claim 6 wherein the defoamer comprises glyceryl stearate.
- 8. The composition of claim 6 wherein the defoamer comprises glyceryl oleate.
- 9. An aqueous rinse comprising about 10-500 parts of the rinse aid of claim 1 per million parts of aqueous diluent.
- 10. A cast solid food grade rinse aid composition, suitable for dilution to form an aqueous rinse, the composition consisting essentially of:(a) about 5 to 50 wt-% of a sorbitan fatty acid mono ester containing greater than about 15 moles of alkylene oxide per mole of sorbitan; (b) about 0.2 to 25 wt-% of a defoamer composition selected from the group consisting of an alkali metal or alkaline earth metal salt of a fatty acid, a silicone, a fatty acid ester of glycerol, and mixtures thereof; and (c) about 10 to 95 wt-% of an aqueous diluent; wherein the rinse aid composition is formulated from the above components approved as food additives and displays adequate sheeting properties during a rinse cycle of mechanical warewashing, at a concentration of at least about 50 parts of the sorbitan fatty acid monoester per million parts of the rinse.
- 11. The composition of claim 10 wherein the defoamer comprises an alkali metal or alkaline earth metal salt of a fatty acid.
- 12. The composition of claim 11 wherein the defoamer comprises a sodium or potassium salt of a C8-C20 saturated or unsaturated fatty acid.
- 13. The composition of claim 10 wherein the silicone defoamer comprises a polydimethylsiloxane.
- 14. The composition of claim 13 wherein the defoamer comprises a combination of about 0.01 to 100 parts by weight of a polydimethylsiloxane having an average chain length of 200 to 250 units, per each part by weight of silica.
- 15. The composition of claim 10 wherein the defoamer comprises a C8-C24 fatty acid mono ester of glycerol.
- 16. The composition of claim 14 wherein the defoamer comprises glyceryl stearate.
- 17. The composition of claim 14 wherein the defoamer comprises glyceryl oleate.
- 18. An aqueous rinse comprising about 10-500 parts of the rinse aid of claim 10 per million parts of aqueous diluent.
- 19. The composition of claim 10 wherein the casting agent diluent comprises a non-surfactant polyethyleneglycol.
- 20. The composition of claim 1, wherein the sorbitan fatty acid mono ester is a mono laurate ester having about 20 moles of ethylene oxide per mole of sorbitan.
- 21. The composition of claim 1, wherein the sorbitan fatty acid mono ester is a monooleate ester having about 20 moles of ethylene oxide per mole of sorbitan.
- 22. The composition of claim 1, wherein the sorbitan fatty acid mono ester is a mono stearate ester having about 20 moles of ethylene oxide per mole of sorbitan.
- 23. The composition of claim 10, wherein the sorbitan fatty acid mono ester is a mono laurate ester having about 20 moles of ethylene oxide per mole of sorbitan.
- 24. The composition of claim 10, wherein the sorbitan fatty acid mono ester is a monooleate ester having about 20 moles of ethylene oxide per mole of sorbitan.
- 25. The composition of claim 10, wherein the sorbitan fatty acid mono ester is a mono stearate ester having about 20 moles of ethylene oxide per mole of sorbitan.
Parent Case Info
This is a continuation, of application Ser. No. 08/050,531 filed Apr. 20, 1993 , which was abandoned upon the filing hereof.
US Referenced Citations (8)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0008830 |
Mar 1980 |
EP |
51-68608 |
Jun 1976 |
JP |
2288697 |
Jun 1986 |
JP |
62288697 |
Dec 1987 |
JP |
0226680 |
Jun 1990 |
JP |
Non-Patent Literature Citations (1)
Entry |
CA 108(18): 152593g Dec. 15, 1987. |
Continuations (1)
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Number |
Date |
Country |
Parent |
08/050531 |
Apr 1993 |
US |
Child |
08/330597 |
|
US |