Biodegradable stability binding agent for a solid detergent

• US 8,945,314 B2
• Filed: 07/30/2012
• Issued: 02/03/2015
• Est. Priority Date: 07/30/2012
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Walters, Kerrie E., Silvernail, Carter
• Primary Examiner(s): Mruk, Brian P
• Application Number:
  US13/561,524
• Publication Number:
  US 20140031273A1
• Time in Patent Office: 918 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, 510/509, 134/22.13, 134/22.14, 134/39, 134/41, 134/42, 252/175
• US Class Current: 134/22.13
• CPC Class Codes: C11D 17/0047 Detergents in the form of bars or tablets
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/3703 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C11D 3/3715 Polyesters or polycarbonates
• CPC Class Codes: C11D 3/3788 Graft polymers

Abstract

A solid composition includes a polysaccharide hybrid polymer composition and a hydratable salt. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from approximately 5% to 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 75% by weight of the polysaccharide hybrid polymer composition.

Claims

1. A solid detergent composition comprising:

a polysaccharide hybrid polymer composition present in an amount from about 1% to about 20% by weight of the solid detergent composition, wherein the polysaccharide hybrid polymer composition comprises;

a hybrid polymer comprising a residue of at least one ethylenically unsaturated monomer with an end group containing a residue of a polysaccharide; and

a hybrid synthetic polymer derived from synthetic monomers and having an initiator fragment as a first end group and a second end group including a proton, wherein the residue of the polysaccharide is present in an amount from about 5% to about 90% by weight of the polysaccharide hybrid polymer composition and the residue of the at least one ethylenically unsaturated monomer is present in an amount from about 10% to about 75% by weight of the polysaccharide hybrid polymer composition;

an anhydrous hydratable salt present in an amount of about 40% or greater by weight of the solid detergent composition;

water present in an amount of about 2% to about 10% by weight of the solid detergent composition; and

phosphorous present in an amount from 0% to 0.5% by weight of the solid detergent composition.

2. The solid detergent composition of claim 1, wherein if the solid detergent composition is stored at 122 degrees Fahrenheit for seven days it has an average growth less than 3%.

3. The solid detergent composition of claim 1, wherein the at least one ethylenically unsaturated monomer includes at least one anionic ethylenically unsaturated monomer.

4. The solid detergent 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-I,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, monomethyl maleate, and salts and combinations thereof.

5. The solid detergent composition of claim 4, 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.

6. The solid detergent composition of claim 1, Wherein the solid detergent composition consists essentially of:

the polysaccharide hybrid polymer composition present in an amount from about 1% to about 20% by weight of the solid detergent composition;

the anhydrous hydratable salt present in an amount of about 40% or greater by weight of the solid detergent composition;

water present in an amount of about 2% to about 10% by weight of the solid detergent composition;

phosphorous present in an amount from 0% to 0.5% by weight of the solid detergent composition; and

at least one functional ingredient.

7. The solid detergent composition of claim 1, wherein the polysaccharide hybrid polymer composition further comprises a hydrophilic monomer.

8. The solid detergent composition of claim 1 wherein the polysaccharide hybrid polymer composition further comprises at least one member selected from the group consisting of monoalkyl maleate and hydroxyalkyl (meth)acrylate.

9. The solid detergent composition of claim 1, wherein the polysaccharide hybrid polymer composition includes from about 10% to about 80% by weight biobased content.

10. The solid detergent composition of claim 1, further comprising about 5% or less sodium hydroxide by weight of the solid detergent.

11. A method of forming a hydrate solid, the method comprising:

mixing water in an amount of 2% to 10% by weight of the hydrate solid and a polysaccharide hybrid polymer composition in an amount from about 1% to about 20% by weight of the hydrate solid to form a liquid premix, wherein the polysaccharide hybrid polymer composition includes a hybrid polymer comprising a residue of at least one ethylenically unsaturated monomer with an end group containing a residue of a polysaccharide and a hybrid synthetic polymer derived from synthetic monomers and having an initiator fragment as a first end group and a second end group including a proton;

adding the liquid premix to about 40% or greater of at least one anhydrous hydratable salt by weight of the hydrate solid to form a mixture; and

forming the hydrate solid from the mixture, wherein the hydrate solid comprises about 0.5% or less phosphorus by weight of the hydrate solid.

12. The method of claim 11, wherein if the hydrate solid is stored at 122 degrees Fahrenheit for 7 days it has an average growth exponent of less than 3%.

13. The method of claim 11, wherein the at least one ethylenically unsaturated monomer includes at least one anionic ethylenically unsaturated monomer.

14. The method of claim 11, 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

-methylacrylic 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, monomethyl maleate, and salts and combinations thereof.

22. The method of claim 11, wherein forming a hydrate solid from the mixture comprises casting the mixture to form a hydrate solid wherein if the hydrate solid is stored at 122 degrees Fahrenheit for 7 days it has an average growth exponent of less than 3%.

15. A method of cleaning a substrate, the method comprising:

mixing water with a solid composition to form a use solution, the solid composition comprising;

a polysaccharide hybrid polymer composition present in an amount from about 1% to about 20% by weight of the solid composition, the polysaccharide hybrid polymer composition comprising;

a hybrid polymer of at least one ethylenically unsaturated monomer with an end group containing a residue of a polysaccharide, the residue of the polysaccharide present in an amount from about 5% to about 90% by weight of the polysaccharide hybrid polymer composition and the residue of the at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide hybrid polymer composition; and

a hybrid synthetic polymer derived from at least one synthetic monomer and having an initiator fragment as a first end group and a second end group including a proton;

an anhydrous hydratable salt present in an amount of about 40% or greater by weight of the solid composition;

water present in an amount of about 2% to about 10% by weight of the solid composition; and

phosphorous present in an amount from 0% to 0.5% by weight of the solid composition; and

contacting the substrate with the use solution.

16. The method of claim 15, wherein the polysaccharide hybrid polymer composition is present in the use solution in an amount from about 5 ppm to about 500 ppm.

17. The method of claim 15, wherein the use solution has a pH of at least 9.0.

18. The method of claim 15, wherein the at least one ethylenically unsaturated monomer includes at least one anionic ethylenically unsaturated monomer.

19. The method of claim 15, wherein the at least one ethylenically unsaturated monomer is 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, monomethyl maleate, and salts and combinations thereof.

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

21. The method of claim 15, wherein if stored at 122 degrees Fahrenheit for seven days the solid composition has an average growth less than 3%.