Biodegradable stability binding agent for a solid detergent

Patent metadata

Field	Value
Publication number	US-9303237-B2
Application number	US-201414576564-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Jul 30, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

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.

First claim

What is claimed is:

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

a nonionic surfactant comprising an alcohol ethoxylate propoxylate, an ethylene oxide/propylene oxide block copolymer, or combinations of the same;
a hydratable salt present in an amount of about 40% or greater by weight of the solid detergent composition; and
water present in an amount of about 2% to about 40% 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 , and further comprising phosphorous present in an amount from 0% to 0,5% by weight of the solid detergent composition.

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

5. 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-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 butadience-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, monomethyl maleate, and salts and combinations thereof.

6. The solid detergent composition of claim 5 , 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.

7. 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 hydratable salt present in an amount of about 40% or greater by weight of the solid detergent composition;
the nonionic surfactant selected from the group consisting of an alcohol ethoxylate propoxylate, an ethylene oxide/propylene oxide block copolymer, and combinations of the same;
water present in an amount of about 2% to about 40% 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.

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

9. 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.

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

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

12. A method of forming a hydrate solid, the method comprising:
mixing a nonionic surfactant comprising an alcohol ethoxylate propoxylate, an ethylene oxide/propylene oxide block copolymer, or combinations of the same, water and a polysaccharide hybrid polymer composition to form a liquid premix, wherein the polysaccharide hybrid polymer composition includes a polysaccharide and at least one ethylenically unsaturated monomer or salts thereof; and
adding the liquid premix to at least one hydratable salt to form a mixture; and
forming a hydrate solid from the mixture, wherein water is present in an amount of about 2% to about 40% by weight of the hydrate solid.

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

14. The method of claim 12 , wherein the hydrate solid further comprises about 0.5% or less phosphorus by weight of the hydrate solid.

15. The method of claim 12 , wherein the liquid premix comprises the polysaccharide hybrid polymer composition in an amount from about 1% to about 20% by weight of the hydrate solid, and wherein adding the liquid premix to hydratable salt includes adding the liquid premix to about 40% or greater hydratable salt by weight of the hydrate solid.

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

17. The method of claim 12 , 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, monomethyl maleate, and salts and combinations thereof.

18. 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 residue of a polysaccharide present in an amount from about 5% to about 90% by weight of the polysaccharide hybrid polymer composition and residue of at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide hybrid polymer composition;
a nonionic surfactant comprising an alcohol ethoxylate propoxylate, an ethylene oxide/propylene oxide block copolymer, or combinations of the same,
a hydratable salt present in an amount of about 40% or greater by weight of the solid composition; and
water present in an amount of about 2% to about 40% by weight of the solid composition; and

contacting the substrate with the use solution.

19. The method of claim 18 , wherein the polysaccharide hybrid polymer composition is present in the use solution in an amount from about 5 ppm to about 500 ppm.

20. The method of claim 18 , wherein the use solution has a pH of at least 9.0.

21.

Assignees

• Ecolab Usa Inc

Inventors

• Walters Kerrie E
• Silvernail Carter M

Classifications

• C11D3/222 Primary

  Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin · CPC title

• C11D3/3715

  Polyesters or polycarbonates · CPC title

• C11D3/3703

  Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C11D17/0047

  Detergents in the form of bars or tablets · CPC title

• C11D3/3788

  Graft polymers · CPC title