Cleaning composition containing a polysaccharide hybrid polymer composition and methods of controlling hard water scale

• US 8,636,918 B2
• Filed: 07/30/2012
• Issued: 01/28/2014
• Est. Priority Date: 08/05/2011
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Silvernail, Carter, Olson, Erik C.
• Primary Examiner(s): Mruk, Brian P
• Application Number:
  US13/561,545
• Publication Number:
  US 20130035274A1
• Time in Patent Office: 547 Days
• Field of Search: 510/247, 510/252, 510/267, 510/272, 510/339, 510/434, 510/435, 510/467, 510/470, 510/475, 510/505, 134/22.13, 134/22.14, 134/39, 134/41, 134/42, 252/175
• US Class Current: 252/175
• CPC Class Codes: C02F 5/145 combined with inorganic substances
• CPC Class Codes: C11D 3/044 Hydroxides or bases
• CPC Class Codes: C11D 3/361 Phosphonates, phosphinates or phosphonites
• CPC Class Codes: C11D 3/3788 Graft polymers

Abstract

A composition includes an anionic polysaccharide hybrid polymer composition and 2-phosphonobutane-1,2,4-tricarboxylic acid. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from approximately 5% to approximately 90% by weight of the polysaccharide hybrid polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from approximately 10% to approximately 75% by weight of the polysaccharide hybrid polymer composition.

Claims

1. A cleaning composition comprising:

at least one alkali metal hydroxide;

water;

2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof; and

a polysaccharide hybrid polymer composition comprising;

polysaccharide residue in an amount from approximately 5% to approximately 90% by weight of the polysaccharide hybrid polymer composition; and

residue of at least one ethylenically unsaturated monomer present in an amount from approximately 10% to approximately 75% by weight of the polysaccharide hybrid polymer composition.

2. The cleaning composition of claim 1 wherein the at least one ethylenically unsaturated monomer includes at least one anionic ethylenically unsaturated monomer.

3. The cleaning composition of claim 1, wherein the at least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, methacrylic acid, ethacrylic acid, α

-chloro-acrylic acid, α

-cyano acrylic acid, β

-methyl-acrylic acid (crotonic acid), α

-phenyl acrylic acid, β

-acryloxy propionic acid, sorbic acid, α

-chloro sorbic acid, angelic acid, cinnamic acid, p-chloro cinnamic acid, β

-styryl acrylic acid (1-carboxy-4-phenyl butadiene-1,3), itaconic acid, maleic acid, citraconic acid, mesaconic acid, glutaconic acid, aconitic acid, fumaric acid, tricarboxy ethylene, 2-acryloxypropionic acid, and salts and combinations thereof.

4. The cleaning composition of claim 3, wherein the at least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, maleic acid, methacrylic acid, 2-acrylamido-2-methyl propane sulfonic acid, monomethyl maleate, and salts and combinations thereof.

5. The cleaning composition of claim 1, wherein the at least one alkali metal hydroxide includes sodium hydroxide, potassium hydroxide, lithium hydroxide or combinations thereof.

6. The cleaning composition of claim 1, wherein the polysaccharide hybrid polymer composition has a weight average molecular weight from approximately 2,000 g/mol to approximately 25,000 g/mol.

7. The cleaning composition of claim 1, wherein the polysaccharide hybrid polymer composition is present in an amount from about 0.1% to about 15% by weight of the cleaning composition.

8. The cleaning composition of claim 7, wherein 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof are present in an amount from about 0.01% to about 10% by weight of the cleaning composition.

9. The cleaning composition of claim 8, wherein the alkali metal hydroxide is present in an amount from about 1% to about 80% by weight of the cleaning composition.

10. The cleaning composition of claim 1, wherein the 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof and the polysaccharide hybrid polymer composition are present in a combined amount from approximately 0.5% to approximately 25% by weight of the cleaning composition.

11. The cleaning composition of claim 1, wherein the cleaning composition contains about 10% or more biodegradable content by weight.

12. A method of preparing a use solution, the method comprising:

mixing water with a detergent composition to form the use solution, wherein the use solution comprises;

at least one alkali metal hydroxide present in an amount from about 1 ppm to about 1000 ppm;

2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof present in an amount from about 0.1 ppm to about 200 ppm; and

a polysaccharide hybrid polymer composition present in an amount from about 1 ppm to about 500 ppm, wherein the polysaccharide hybrid polymer composition comprises from about 5% to about 90% by weight polysaccharide residue and from about 10% to about 75% by weight residue of at least one ethylenically unsaturated monomer.

13. The method of claim 12, wherein the at least one ethylenically unsaturated monomer includes at least one anionic unsaturated monomer.

14. The method of claim 12, wherein the least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, methacrylic acid, ethacrylic acid, α

-chloro-acrylic acid, α

-cyano acrylic acid, β

-methyl-acrylic acid (crotonic acid), α

-phenyl acrylic acid, β

-acryloxy propionic acid, sorbic acid, α

-chloro sorbic acid, angelic acid, cinnamic acid, p-chloro cinnamic acid, β

-styryl acrylic acid (1-carboxy-4-phenyl butadiene-1,3), itaconic acid, maleic acid, citraconic acid, mesaconic acid, glutaconic acid, aconitic acid, fumaric acid, tricarboxy ethylene, 2-acryloxypropionic acid, 2-acrylamido-2-methyl propane sulfonic acid, vinyl sulfonic acid, sodium methallyl sulfonate, sulfonated styrene, allyloxybenzene sulfonic acid and monomethyl maleate, and salts and combinations thereof.

15. The method of claim 14, wherein the at least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, maleic acid, methacrylic acid, 2-acrylamido-2-methyl propane sulfonic acid, monomethyl maleate, and salts and combinations thereof.

16. The method of claim 12, wherein the at least one alkali metal hydroxide includes sodium hydroxide, potassium hydroxide, lithium hydroxide or combinations thereof.

17. The method of claim 12, where the polymer composition has a weight average molecular weight from about 2,000 g/mol to about 25,000 g/mol.

18. A method for controlling hard water scale, the method comprising:

adding an anionic polysaccharide hybrid polymer composition and 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof to an aqueous system to control hard water scaling, wherein the polysaccharide hybrid polymer composition comprises;

residue of a polysaccharide present in an amount from about 5% to about 90% the polysaccharide hybrid polymer composition; and

residue of at least one ethylenically unsaturated monomer present in amount from about 10% to about 75% weight of the polysaccharide hybrid polymer composition; and

wherein the polysaccharide hybrid polymer composition and 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof are added in amounts such that the aqueous system includes about 1 to about 500 ppm polysaccharide hybrid polymer composition and from about 0.1 to about 200 ppm 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof.

19. The method of claim 18, and further comprising:

adding at least one alkali metal hydroxide to the aqueous system to form a use solution.

20. The method of claim 18, wherein the polysaccharide hybrid polymer composition and the 2-phosphonobutane-1,2,4-tricarboxylic acid or salts thereof are present in a weight ratio from about 15:

1 to about 1;

15.

21. The method of claim 18, wherein the at least one ethylenically unsaturated monomer is anionic.

22. The method of claim 18, wherein the at least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, methacrylic acid, ethacrylic acid, α

-chloro-acrylic acid, α

-cyano acrylic acid, β

-methyl-acrylic acid (crotonic acid), α

-phenyl acrylic acid, β

-acryloxy propionic acid, sorbic acid, α

-chloro sorbic acid, angelic acid, cinnamic acid, p-chloro cinnamic acid, β

-styryl acrylic acid (1-carboxy-4-phenyl butadiene-1,3), itaconic acid, maleic acid, citraconic acid, mesaconic acid, glutaconic acid, aconitic acid, fumaric acid, tricarboxy ethylene, 2-acryloxypropionic acid, 2-acrylamido-2-methyl propane sulfonic acid, vinyl sulfonic acid, sodium methallyl sulfonate, sulfonated styrene, allyloxybenzene sulfonic acid and monomethyl maleate, and salts and combinations thereof.

23. The method of claim 22, wherein the at least one ethylenically unsaturated monomer includes at least one member selected from the group consisting of acrylic acid, maleic acid, methacrylic acid, 2-acrylamido-2-methyl propane sulfonic acid, monomethyl maleate, and salts and combinations thereof.