Detergent composition comprising phosphinosuccinic acid adducts and methods of use

• US 9,670,434 B2
• Filed: 09/08/2014
• Issued: 06/06/2017
• Est. Priority Date: 09/13/2012
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Olson, Erik C., Silvernail, Carter M.
• Primary Examiner(s): DOUYON, LORNA M
• Application Number:
  US14/479,489
• Publication Number:
  US 20140378366A1
• Time in Patent Office: 1,002 Days
• Field of Search: None
• CPC Class Codes: C11D 2111/16 Metals
• CPC Class Codes: C11D 2111/18 Glass; Plastics
• CPC Class Codes: C11D 3/044 Hydroxides or bases
• CPC Class Codes: C11D 3/08 Silicates
• CPC Class Codes: C11D 3/10 Carbonates ; Bicarbonates
• CPC Class Codes: C11D 3/2082 Polycarboxylic acids-salts thereof
• CPC Class Codes: C11D 3/365 containing carboxyl groups

Abstract

Detergent compositions effective for controlling hard water scale accumulation are disclosed. Detergent compositions employing phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid (PSO) derivatives with alkali metal carbonate and/or alkali metal hydroxide reduce had water scale accumulation on treated surfaces at alkaline conditions between about pH of 9 and 12.5. Methods employing the detergent compositions and preventing hard water scale accumulation are also provided.

Claims

1. A detergent composition comprising:

between about 0.01 wt-% and about 40 wt-% of a phosphinosuccinic acid derivative comprising a phosphonosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;

between about 30 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, silicate, and combinations of the same; and

water,

wherein a use solution of the detergent composition has a pH greater than 9; and

the composition does not contain a bleaching agent.

2. The composition of claim 1, further comprising a water soluble polymer.

3. The composition of claim 2, wherein the water soluble polymer is selected from the group consisting of a polycarboxylic acid and hydrophobically modified polycarboxylic acid.

4. The composition of claim 1, further comprising a nonionic surfactant, wherein the nonionic surfactant comprises ethylene oxide, propylene oxide, or a combination of ethylene and propylene oxide.

5. The composition of claim 1, wherein the phosphinosuccinic acid derivative comprises at least 10 mol % of an adduct having a ratio of succinic acid to phosphorus from about 1:

1 to 20;

1.

6. The composition of claim 1, wherein the phosphonosuccinic acid (I) and mono OD, bis- (III) and oligomeric (IV) phosphinosuccinic acid adducts have the following formulas:

7. The composition of claim 1, where the use solution comprises about 100-1500 ppm of an alkalinity source and about 5-500 ppm phosphinosuccinic acid derivative and has a pH between about 10.5 and 12.5.

8. The composition of claim 1, wherein the composition does not contain corrosion inhibitors.

9. The composition of claim 1, wherein the alkalinity source is present between about 30 wt-% and about 75 wt-% of the composition, and wherein the pH of the use solution is between about 10.5 and 12.5.

10. The composition of claim 1, wherein the phosphinosuccinic acid derivative is between about 1 wt-% and about 20 wt-% of the composition;

wherein the alkalinity source is between about 30 wt-% and about 70 wt-% of the composition and selected from the group consisting of alkali metal hydroxide, metasilicate, silicate, and combinations thereof;

wherein the water is between about 10 wt-% and about 50 wt-% of the composition; and

wherein the pH of the use solution is between 10.5 and 12.5.

11. A detergent composition comprising:

between about 1 wt-% and about 20 wt-% of a phosphinosuccinic acid derivative comprising a phosphonosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;

between about 30 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, silicate, and combinations of the same; and

between about 1 wt-% and about 25 wt-% of a surfactant;

wherein a use solution of the detergent composition has a pH greater than 9, and wherein the composition does not contain corrosion inhibitors and a bleaching agent.

12. The composition of claim 11, wherein the surfactant is a nonionic surfactant comprising ethylene oxide, propylene oxide, or combination of ethylene and propylene oxide.

13. The composition of claim 11, wherein the phosphonosuccinic acid (I) and mono- (II), bis- (III) and oligomeric (IV) phosphinosuccinic acid adducts have the following formulas:

14. The composition of claim 11, wherein the composition comprises from about 30 wt % to about 70 wt-% alkalinity source, from about 1 wt-% to about 20 wt-% phosphinosuccinic acid derivative, and from about 1 wt-% to about 10 wt-% of a nonionic surfactant.

15. The composition of claim 11, wherein the use solution comprises about 100-1500 ppm of an alkalinity source, about 1-500 ppm phosphinosuccinic acid derivative, and about 1-50 ppm of a nonionic surfactant.

16. The composition of claim 11, further comprising at least one of the following:

an etch protectant, a fragrance, a dye, an enzyme, a dispersant, and an anti-redeposition agent.

17. The composition of claim 11, wherein the phosphinosuccinic acid derivative comprises at least 10 mol % of an adduct having a ratio of succinic acid to phosphorus from about 1:

1 to 20;

1.

18. A method of cleaning while preventing hard water scale accumulation on a treated surface comprising:

applying a use solution of a detergent composition to a substrate surface, wherein the detergent composition comprises between about 0.01 wt-% and about 40 wt-% of a phosphinosuccinic acid derivative comprising a phosphonosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts, between about 30 wt-% and about 90 wt-% of an alkalinity source selected from the group consisting of an alkali metal hydroxide, carbonate, metasilicate, silicate and combinations of the same, and wherein the detergent composition is effective for preventing the formation, precipitation and/or deposition of hard water scale on the surface; and

wherein the use solution has a pH greater than 9 and the detergent composition does not contain a bleaching agent.

19. The method of claim 18, where the surface is a plastic, metal, glass surface, or a combination thereof.

20. The method of claim 18, wherein the use solution is generated within a ware washing machine.

21. The method of claim 18, wherein the detergent composition further comprises a nonionic surfactant.