Reduced residue hard surface cleaner

• US 5,437,807 A
• Filed: 10/08/1993
• Issued: 08/01/1995
• Est. Priority Date: 02/07/1992
• Status: Expired due to Term

• Current Assignee: Clorox Company
• Original Assignee: Clorox Company
• Inventors: Garabedian, Aram Jr., Mills, Scott C., Sibert, William P.
• Primary Examiner(s): Lieberman, Paul
• Assistant Examiner(s): TIERNEY, MICHAEL
• Application Number:
  US08/134,349
• Time in Patent Office: 662 Days
• Field of Search: 252/153, 252/173, 252/547, 252/546, 252/DIG. 10
• US Class Current: 510/427
• CPC Class Codes: C11D 1/146 Sulfuric acid esters
• CPC Class Codes: C11D 1/58 Heterocyclic compounds
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/75 Amino oxides
• CPC Class Codes: C11D 1/825 Mixtures of compounds all of which are non-ionic
• CPC Class Codes: C11D 1/94 Mixtures with anionic, cationic or non-ionic compounds
• CPC Class Codes: C11D 3/044 Hydroxides or bases
• CPC Class Codes: C11D 3/30 Amines; Substituted amines ; Quaternized amines
• CPC Class Codes: C11D 3/32 Amides; Substituted amides
• CPC Class Codes: C11D 3/323 urea or derivatives thereof
• CPC Class Codes: C11D 3/33 Amino carboxylic acids
• CPC Class Codes: C11D 3/43 Solvents

Abstract

The invention provides an aqueous, hard surface cleaner with significantly improved residue removal and substantially reduced filming/streaking, said cleaner comprising:

(a) an effective amount of a solvent selected from C_1-6 alkanol, C_3-24 alkylene glycol ether, and mixtures thereof;

(b) an effective amount of a surfactant selected from amphoteric, nonionic and anionic surfactants, and mixtures thereof;

(c) an effective amount of a buffering system which comprises a nitrogenous buffer selected from the group consisting of:

ammonium or alkaline earth carbamates, guanidine derivatives, alkoxylalkylamines and alkyleneamines; and

(d) the remainder as substantially all water.

Claims

1. An aqueous, hard surface cleaner with significantly improved residue removal and substantially reduced filming/streaking, said cleaner consisting essentially of:

(a) an effective amount of a solvent selected from C_1-6 alkanol, C_3-24 alkylene glycol ether, and mixtures thereof;

(b) an effective amount of a surfactant selected from amphoteric and anionic surfactants, and mixtures thereof, wherein the effective amount for the amphoteric surfactant is about 0.005-2% and for the anionic surfactant is about 0.001-1%, and, optionally, a further nonionic surfactant in an effective amount of about 0.75%;

(c) about 0.01-2% of a buffering system which comprises a nitrogenous buffer which is either ammonium or alkaline earth carbamate; and

(d) the remainder as substantially all water.

2. The hard surface cleaner of claim 1 wherein said solvent is an alkanol which is selected from the group consisting of methanol, ethanol, n-propanol, isopropanol, butanol, pentanol, hexanol, their various positional isomers, and mixtures of the foregoing.

3. The hard surface cleaner of claim 1 wherein said solvent is an alkylene glycol ether which is selected from the group consisting of ethylene glycol monobutyl ether, ethylene glycol monopropyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, and mixtures thereof.

4. The hard surface cleaner of claim 3 wherein said solvent is propylene glycol t-butyl ether.

5. The hard surface cleaner of claim 1 wherein said surfactant further comprises a mixture of anionic and amphoteric surfactants.

6. The hard surface cleaner of claim 1 wherein said surfactant further comprises a mixture of anionic, nonionic and amphoteric surfactants.

7. The hard surface cleaner of claims 5 or 6 further comprising a soluble alkaline earth metal salt.

8. The hard surface cleaner of claim 7 wherein said alkaline earth metal salt is either CaCl₂ or MgCl₂.

9. The hard surface cleaner of claims 5 or 6, wherein said anionic surfactant is a C_6-20 alkyl sulfate and said amphoteric surfactant is an alkylbetaine.

10. The hard surface cleaner of claim 6 wherein said nonionic surfactant is a trialkyl amine oxide.

11. The hard surface cleaner of claim 1 wherein said buffer further includes an ammonium hydroxide.

12. A method for removing soil, without substantial residue remaining, from a hard surface comprising applying the cleaner of claim 1 to said soil and removing said soil and said cleaner.