SOLID RINSE AID COMPOSITION AND METHOD OF MAKING SAME

• US 20170107463A1
• Filed: 12/28/2016
• Published: 04/20/2017
• Est. Priority Date: 06/22/2012
• Status: Active Grant

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Inventors: Sun, Xin, Anderson, Derrick, West, Kelsey, Kieffer, Janel Marie, Man, Victor Fuk-Pong, Hunter, Melissa
• Granted Patent: US 10,421,933 B2
• Time in Patent Office: Days
• CPC Class Codes: C11D 1/66 Non-ionic compounds C11D1/002, C11D1/004, C11D1/008 take precedence
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/722 Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups C11D1/721 takes precedence
• CPC Class Codes: C11D 1/825 Mixtures of compounds all of which are non-ionic
• CPC Class Codes: C11D 17/0047 Detergents in the form of bars or tablets
• CPC Class Codes: C11D 2111/14 Hard surfaces
• CPC Class Codes: C11D 2111/16 Metals
• CPC Class Codes: C11D 2111/18 Glass; Plastics
• CPC Class Codes: C11D 3/0021 Dye-stain or dye-transfer inhibiting compositions
• CPC Class Codes: C11D 3/042 Acids
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/2075 Carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/2082 Polycarboxylic acids-salts thereof
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/3418 Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
• CPC Class Codes: C11D 3/3463 containing thio sulfate or sulfite groups

Abstract

The invention includes a solid rinse aid that is particularly designed for pressed or extrusion solid formation and which is effective for spotless surfaces after rinsing, especially rinsing metals without corrosion. According to the invention, a solid acid is combined with a short-chain alkylbenzene and alkyl naphthalene sulfonate. The short-chain alkylbenzene and alkyl naphthalene sulfonate act as a solidification agent as well as a hydrotrope, and total dissolved solid (TDS) active and are combined with at least one nonionic low foaming surfactant.

Claims

1. A method of making a solid rinse aid composition comprising;

a. Admixing a solid acid, nonionic surfactant and short chain alkyl benzene and/or alkyl naphthalene sulfonates;

b. Allowing said mixture to set and thereafter

c. Mixing in any liquid components of said rinse aid, such as preservative, additional surfactant, water, dyes and the like;

d. Forming a solid with the rinse aid mixture.

2. The method of claim 1 wherein said forming a solid is by pressing.

3. The method of claim 1 wherein aid forming a solid is by extrusion.

4. The method of claim 1 wherein said mixture is allowed to set for 1 or more days.

5. A method for rinsing a hard surface in a cleaning application comprising:

a. providing a solid rinse aid composition according to claim 1;

b. contacting the rinse aid composition with water to form a use solution; and

c. applying the use solution to the hard surface.

6. The method of claim 5 wherein said use solution comprises 2,000 ppm or less active materials.

7. The method of claim 5 wherein said contacting is by directing water on to a solid block of rinse aid.

8. The method of claim 5 wherein said solid rinse aid is dissolved into a use solution by said contacting.

9. The method of claim 5 wherein said hard surface comprises metal, glass, plastic, ceramic or tile.