Alkyl amides for enhanced food soil removal and asphalt dissolution

Patent metadata

Field	Value
Publication number	US-11834624-B2
Application number	US-201916250735-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Mar 7, 2014
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

The present invention comprises a hard surface cleaning composition including an environmentally friendly alkyl amide solvent, derived from renewable bio-based resources that works at least as well as d-limonene. In one embodiment, the present invention is a cleaning composition including an anionic surfactant salt, a saturated C8 to C10 alkyl amide solvent, a cosolvent and water. The composition is substantially free of d-limonene and can remove red food soils with up to 20 percent protein, and also functions as an asphalt removal composition.

First claim

What is claimed is:

1. A method for cleaning a hard surface, comprising:
diluting a cleaning composition from about a 1:1 to about a 1:8 ratio with water to form a use solution, the cleaning composition consisting of:
from 12 wt. % to about 30 wt. % of a C 8 and/or C 10 dimethyl alkyl amide solvent, wherein the dimethyl alkyl amide solvent is N,N-dimethylcaprylamide, N,N-dimethylcapramide, or a mixture thereof;
at least one neutralizing agent;
a chelant;
a pH adjuster;
an anionic surfactant;
a cosolvent, wherein the cosolvent is a dipropylene glycol ether; and
water,

contacting the surface with the use solution,
wherein organic soils, food soils, lard, grease, food oil, protein, petroleum deposits, mineral spirits, oily soil, mineral oil, motor oil, oil dag, bandy black clay, and/or asphalt are removed from the hard surface.

2. The method of claim 1 wherein said C 8 and/or C 10 dimethyl alkyl amide is saturated.

3. The method of claim 1 wherein said anionic surfactant is a salt.

4. The anionic surfactant salt of claim 3 wherein said salt is an amine salt.

5. The method of claim 1 , wherein the anionic surfactant is present in an amount between about 5 wt. % and about 40 wt. % of the cleaning composition.

6. The method of claim 1 , wherein the chelant is present in an amount between about 0.01 wt. % and about 15 wt. % of the cleaning composition.

7. The method of claim 1 wherein said cleaning composition is a pot and pan pre-soaking composition, a hard surface cleaner or an asphalt dissolving composition.

Assignees

• Ecolab Usa Inc

Inventors

• Blattner Amanda Ruth
• Hodge Charles Allen
• Levitt Mark Dennis
• Peitersen Nathan D

Classifications

• C11D3/33

  Amino carboxylic acids · CPC title

• C11D3/43 Primary

  Solvents · CPC title

• C11D1/02

  Anionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)} · CPC title

• C11D1/652

  Mixtures of anionic compounds with carboxylic amides or alkylol amides · CPC title

• C11D3/2003

  Alcohols; Phenols · CPC title