Rinse aid composition comprising a terpolmer of maleic, vinyl acetate and ethyl acrylate

Patent metadata

Field	Value
Publication number	US-9809786-B2
Application number	US-201614989339-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Jan 7, 2015
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

Rinse aid compositions, methods of use, and methods of making said composition are disclosed. The rinse aid compositions can be solid or liquid. The rinse aid compositions comprise a defoamer, a sheeting agent, and a terpolyer of maleic, vinyl acetate, and ethyl acrylate. Preferred sheeting agents include one or more alcohol ethyoxylates. Preferred defoamer components include a polymer compound including one or more ethylene oxide groups. The solid rinse aid compositions are preferably substantially free of sulfate and sulfate-containing compounds.

First claim

What is claimed is:

1. A rinse aid composition comprising:
a sheeting agent comprising one or more alcohol ethoxylates;
a defoamer component comprising a polymer compound including one or more ethylene oxide groups; and
a terpolymer of maleic, vinyl acetate, and ethyl acrylate monomers or alkali metal salts thereof, wherein the alcohol ethoxylate has a structure by the formula, R—O—(CH 2 CH 2 O) n —H, R is linear
or branched C 8 -C 15 alkyl group, and n is 1 to 25;

the defoamer is a block copolymer having the formula (EO) x (PO) y (EO) x or (PO) y (EO) x (PO) y , wherein x is 1 to 130, and y is 5 to 70; and
the composition is a rinse aid composition, not a detergent or cleaning composition.

2. The composition of claim 1 , wherein the composition is a solid and further comprises a solidification agent present between about 30 wt. % and about 75 wt. % of the composition.

3. The composition of claim 1 , wherein the sheeting agent is present between about 0.01 wt. % and about 60 wt. % of the composition, and wherein the defoamer is present between about 0.01 wt. % and about 60 wt. % of the composition.

4. The composition of claim 1 , wherein the terpolymer of maleic, vinyl acetate, and ethyl acrylate monomers or alkali metal salts thereof is present between about 0.01 wt. % and about 40 wt. % of the composition.

5. The composition of claim 1 further comprising a preservative and a hydroxycarboxylic acid, wherein the preservative is selected from the group consisting of methylchloroisothiazolinone, methylisothiazolinone, sodium pyrithione, and mixtures of the same.

6. The composition of claim 5 , wherein the hydroxycarboxylic acid comprises citric acid, an anhydrous alkali metal salt of citric acid, a hydrated alkali metal salt of citric acid and combinations thereof.

7. The composition of claim 5 , wherein the preservative is present between about 0.01 wt. % and about 10 wt. % of the composition, and wherein the hydroxycarboxylic acid is present from about 0.1 wt. % to about 20 wt. % of the composition.

8. A method of cleaning a surface comprising:
contacting a soiled surface with a detergent and the rinse aid of claim 1 .

9. The method of claim 8 , wherein said surface is a ware, wherein said rinse aid contacts the surface after the detergent and is diluted with water to form a use solution prior to contacting the soiled surface, and wherein said use solution is at a concentration less than about 2000 ppm.

10. A method for making a rinse aid composition comprising:
mixing a sheeting agent comprising one or more alcohol ethoxylates, a defoamer component comprising a polymer compound including one or more ethylene oxide groups, and a terpolymer of maleic, vinyl acetate, and ethyl acrylate monomers or alkali metal salts thereof to form a mixture;
forming a rinse aid composition,
wherein the alcohol ethoxylate has a structure by the formula, R—O—(CH 2 CH 2 O) n —H, R is linear or branched C 8 -C 15 alkyl group, and n is 1 to 25;
the defoamer is a block copolymer having the formula (EO) x (PO) y (EO) x or (PO) y (EO) x (PO) y , wherein x is 1 to 130, and y is 5 to 70; and
the composition is not a detergent or cleaning composition.

11. The method of claim 10 , wherein the mixture is heated to prior to after forming a rinse aid composition.

12. The method of claim 10 , wherein the composition is a solid and further comprises a solidification agent present between about 20 wt. % and about 75 wt. % of the composition.

13. The method of claim 10 , wherein the sheeting agent is present between about 0.01 wt. % and about 60 wt. % of the composition.

14. The method of claim 10 , wherein the defoamer is present between about 0.01 wt. % and about 60 wt. % of the composition.

15. The method of claim 10 , wherein the terpolymer of maleic, vinyl acetate, and ethyl acrylate monomers or alkali metal salts thereof is present between about 0.01 wt. % and about 40 wt. % of the composition.

16. The method of claim 10 , wherein the composition further comprises a preservative and a hydroxycarboxylic acid.

17. The method of claim 16 , wherein the preservative is selected from the group consisting of methylchloroisothiazolinone, methylisothiazolinone, and mixtures of the same.

18. The method of claim 16 , wherein the hydroxycarboxylic acid comprises citric acid, an anhydrous alkali metal salt of citric acid, a hydrated alkali metal salt of citric acid and combinations thereof.

19. The method of claim 16 , wherein the preservative is present between about 0.01 wt. % and about 10 wt. % of the composition, and wherein the hydroxycarboxylic acid is present from about 0.1 wt. % to about 20 wt. % of the composition.

20. The method of claim 10 , wherein the composition further comprises one or more additional functional ingredients.

Assignees

• Ecolab Usa Inc
• Ecolab Use Inc

Inventors

• Olson Erik C
• Sivernail Carter M

Classifications

• C11D1/825

  Mixtures of compounds all of which are non-ionic · CPC title

• C11D1/008

  Polymeric surface-active agents · CPC title

• C11D3/3757 Primary

  (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions · CPC title

• C11D1/72

  Ethers of polyoxyalkylene glycols · CPC title

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title