Detergent composition comprising a polymer that performs both a cleaning and rinsing function

Patent metadata

Field	Value
Publication number	US-9796947-B2
Application number	US-201514635746-A
Country	US
Kind code	B2
Filing date	Mar 2, 2015
Priority date	Mar 7, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Industrial 2-in-1 cleaning compositions providing both detergency and rinseability in a single cleaning composition comprising a polymer are disclosed. Alkali metal carbonate-based cleaning compositions and methods of both making and using the same provide user-friendly, solid, detergent compositions without the need for using a separate rinse aid composition. The compositions and methods are particularly well suited for use in industrial cleaning using alkali metal carbonate compositions that beneficially provide cleaning and rinseability in the rinse cycle.

First claim

What is claimed is:

1. An alkaline detergent and rinsing composition comprising:
from about 40 wt. % to about 85 wt. % of an alkalinity source consisting of an alkali metal carbonate;
at least two nonionic surfactants, wherein said nonionic surfactants comprise an alcohol alkoxylate, and an EO/PO copolymer, wherein said alcohol alkoxylate is in an amount of from about 1 wt. % to about 10 wt. %, wherein the EO/PO copolymer is in an amount of from about 1 wt. % and 10 wt. %, and wherein said EO/PO copolymer and alcohol alkoxylate are in a ratio of between about 3:1 to 1:3;
from about 10 wt. % to about 30 wt. % of a builder; and
from about 1 wt-% to about 20 wt. % of a polymer comprising a polycarboxylic acid polymer, copolymer, and/or terpolymer, wherein said polycarboxylic acid polymer, copolymer, and/or terpolymer is an acrylic/maleic acid copolymer;
wherein the alcohol alkoxylate is a C 8 -C 18 alcohol ethoxylate with about 10 to about 30 moles of ethylene oxide;
the EO/PO copolymer does not contain any other alkyl groups;
wherein said composition performs both a cleaning and rinsing function and does not contain a solidification agent, fatty acid, or salt thereof; and wherein said alkalinity source is a hydratable salt solidifying the detergent composition.

2. The composition of claim 1 , wherein said alkalinity source is present from about 45 wt-% to about 75 wt-%, and wherein said polymer is present from about 1 to about 10 wt-%.

3. The composition of claim 1 , wherein said EO/PO copolymer and alcohol alkoxylate are in a ratio of about 1:1.

4. The composition of claim 1 , wherein said composition provides substantially similar cleaning and rinsing performance as separate detergent and rinse aid compositions.

5. The composition of claim 1 , further comprising a neutralizing agent in an amount between 0.1 wt-% and about 50 wt-%.

6. The composition of claim 1 , further comprising a fatty alcohol.

7. The composition of claim 5 , wherein the neutralizing agent comprises up to about 10 wt-% alkali metal hydroxide.

8. The composition of claim 7 further comprising an enzyme.

9. A method of cleaning and rinsing ware comprising:
contacting ware with the alkaline detergent according to claim 1 ,
rinsing said ware with water;
wherein no separate rinse aid composition is employed in the method, and wherein said alkaline detergent composition provides at least substantially similar cleaning and rinsing performance as separate detergent and rinse aid compositions.

10. The method of claim 9 , wherein said alkalinity source is present from about 45 wt-% to about 75 wt-%, and wherein said polymer is present from about 1 wt-% to about 10 wt-%.

11. The method of claim 9 , wherein said alcohol alkoxylate and EO/PO copolymers are in a ratio of about 1:1.

12. The method of claim 9 , wherein the alkaline detergent composition further comprises a neutralizing agent in an amount between about 0.1 wt-% and about 50 wt-%.

13. The method of claim 9 , further comprising a fatty alcohol.

14. The method of claim 12 , wherein the alkalinity source comprises an alkali metal carbonate, wherein the alkalinity source is substantially free of alkali metal hydroxide, and wherein the neutralizing agent comprises up to about 10 wt-% alkali metal hydroxide.

15. The method of claim 14 , wherein the alkaline detergent composition further comprises an enzyme.

16. A solid, alkaline detergent composition comprising:
from about 45 wt. % to about 75 wt. % of an alkalinity source consisting of an alkali metal carbonate;
from about 10 wt. % to about 30 wt. % of a builder selected from the group consisting of sodium tripolyphosphate, 1-hydroxyethylidene-1,1-diphosphonic acid, methylglcine-N,N-diacetic acid, glutamic acid-N,N-diacetic acid, ethylenediamine tetraacetic acid, and aspartic acid-N,N-diacetic acid; and
a nonionic surfactant comprising from about 1 wt. % to about 10 wt. % of a C8-18 alcohol alkoxylate, and from about 1 wt. % to about 10 wt. % of an EO/PO copolymer, wherein said alcohol alkoxylate and EO/PO copolymer are in a ratio of between about 3:1 to 1:3;
from about 1 wt. % to about 10 wt. % of an acrylic/maleic copolymer;
wherein the alcohol alkoxylate is a C 8 -C 18 alcohol ethoxylate with about 10 to about 30 moles of ethylene oxide;
the EO/PO copolymer does not contain any other alkyl groups;
wherein the composition is used to clean and rinse wares without the use of an additional rinse aid composition and does not contain a solidification agent, fatty acid, or salt thereof, and wherein said alkalinity source is a hydratable salt solidifying the detergent composition.

17. The composition of claim 16 , wherein said alcohol alkoxylate and EO/PO copolymer are in a ratio of about 1:1.

18. The composition of claim 16 , wherein said acrylic/maleic copolymer has a molecular weight from about 1,000 to about 25,000 g/mol.

19. The composition of claim 16 , wherein the solid, alkaline detergent is a cast, extruded, or pressed solid.

Assignees

• Ecolab Usa Inc

Inventors

• Roerdink Lander Monique
• Silvernail Carter M
• Dahlquist Howlett Erin Jane
• Walters Kerrie E

Classifications

• C11D3/10

  Carbonates {; Bicarbonates} · CPC title

• C11D3/3757

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

• C11D1/8255 Primary

  containing a combination of compounds differently alcoxylised or with differently alkylated chains · CPC title

• C11D3/06

  Phosphates, including polyphosphates · CPC title

• C11D1/72

  Ethers of polyoxyalkylene glycols · CPC title