ALKALINE HARD SURFACE CLEANERS COMPRISING ALKYLPYRROLIDONES

• US 20190330567A1
• Filed: 04/18/2019
• Published: 10/31/2019
• Est. Priority Date: 04/27/2018
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: CEULEMANS, Raphael Angeline Alfons, KANTARIDIS, Stefanos
• Granted Patent: US 11,555,164 B2
• Time in Patent Office: Days
• CPC Class Codes: C11D 1/08 Polycarboxylic acids containing no nitrogen or sulfur
• 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 1/90 Betaines
• CPC Class Codes: C11D 1/92 Sulfobetaines ; Sulfitobetaines
• CPC Class Codes: C11D 1/945 containing a combination of non-ionic compounds differently alcoxylised or with different alkylated chains
• CPC Class Codes: C11D 2111/14 Hard surfaces
• CPC Class Codes: C11D 3/0047 pH regulated compositions
• CPC Class Codes: C11D 3/28 Heterocyclic compounds containing nitrogen in the ring
• CPC Class Codes: C11D 3/3723 Polyamines or polyalkyleneimines

Abstract

The need for an all-purpose hard surface cleaning composition which provides improved removal of greasy soap scum and water-marks, especially on inclined surfaces, is met by formulating an alkaline composition with an alkyl pyrrolidone, and a co-surfactant selected from the group consisting of: an amine oxide surfactant; a betaine surfactant; and mixtures thereof.

Claims

1. An alkaline liquid hard surface cleaning composition comprising from about 0.01% to about 15% by weight of a surfactant system, wherein the surfactant system comprises:

(a) From about 1.0% to about 10% by weight of the composition of an alkyl pyrrolidone;

(b) from about 0.1% to about 10.0% by weight of a co-surfactant selected from the group consisting of;

(i) an amine oxide surfactant;

(ii) a betaine surfactant; and

(iii) mixtures thereof;

(c) from about 1.0% to about 10% by weight of the composition of alkoxylated nonionic surfactant;

wherein the liquid hard surface cleaning composition has a pH of greater than about 7.0, measured on the neat composition, at about 25°

C.

2. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the alkyl pyrrolidone is a C5-C12 alkyl pyrrolidone.

3. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the alkyl pyrrolidone is present at a level from about 1.0% to about 3.0% by weight of the composition.

4. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the co-surfactant is present at a level of from about 0.1% to about 10.0% by weight of the composition.

5. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the composition comprises from from about 0.1% to about 5% by weight of the composition of co-surfactant which is amine oxide surfactant.

6. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the composition comprises from about 1.0% to about 10% by weight of the composition of the alkoxylated nonionic surfactant which is an ethoxylated alcohol according to the formula RO-(A)_nH, wherein:

R is a C₆ to C₁₈ alkyl chain, A is an ethoxy unit, and wherein n is from about 1 to about 30.

7. The alkaline liquid hard surface cleaning composition according to claim 1, wherein the surfactant system further comprises anionic surfactant, preferably at a level of from about 0.05% to about 5% by weight of the composition.

8. The alkaline liquid hard surface cleaning composition according to claim 7, wherein the anionic surfactant is selected from the group consisting of:

alkyl sulphate, alkyl alkoxylated sulphate, sulphonic acid or sulphonate surfactant, carboxylated anionic surfactant, and mixtures thereof.

9. The hard surface cleaning composition according to claim 1, wherein the composition further comprises a polyethyleneimine polymer at a level of from 0.005% to 5.0% by weight of the total composition.

10. The hard surface cleaning composition according to claim 9, wherein the polyethyleneimine polymer is carboxylated polyethyleineimine.

11. The hard surface cleaning composition according to claim 1, wherein the composition further comprises a chelant at a level of from about 0.05% to about 4.0% by weight of the total composition.

12. The hard surface cleaning composition according to claim 11, wherein the chelant is selected from the group consisting of:

amino-carboxylates, carboxylated fructan, phosphonate chelating agents, and mixtures thereof.

13. The hard surface cleaning composition according to claim 1, wherein the composition has a pH of from about 8.0 to about 12.

14. The hard surface cleaning composition according to claim 1, wherein the viscosity of the composition is from about 50 Pa·

s to about 650 Pa·

s, at about 20°

C. when measured with a AD1000 Advanced Rheometer from Atlas®

shear rate 10 s<sup>−

1</sup> with a coned spindle of about 40 mm with a cone angle 2° and

a truncation of about 60 μ

m.

15. The hard surface cleaning composition according to claim 1, wherein the composition comprises:

(a) from about 0.1% to about 10% by weight of the composition of the alkyl pyrrolidone, preferably N-octyl-2-pyrrolidone;

(b) from about 0.05% to about 6.0% by weight of the composition of the co-surfactant which is amine oxide surfactant,

(c) from about 1.0% to about 10.0% by weight of the composition of an ethoxylated alcohol nonionic surfactant;

(d) from about 0.05% to about 5% by weight of the composition of anionic surfactant.

16. A method of cleaning a household hard surface, comprising the steps of:

(a) optionally diluting the hard surface cleaning composition according to claim 1;

(b) applying the hard surface cleaning composition to the household hard surface; and

(c) optionally rinsing and/or wiping the surface.

17. The use of an alkaline hard surface cleaning composition comprising an alkyl pyrrolidone for removing greasy soap scum and/or water-marks from a hard surface.