	US 12,448,587 B2
	Hard surface cleaning composition
Ivana Trombetta, Casalpusterlengo (IT); Serena Pezzia, Casalpusterlengo (IT); Luca Pretali, Casalpusterlengo (IT); and Lorena Galluzzi, Casalpusterlengo (IT)
Assigned to Conopco Inc., Englewood Cliffs, NJ (US)
Appl. No. 18/255,592
Filed by Conopco Inc., Englewood Cliffs, NJ (US)
PCT Filed Dec. 2, 2021, PCT No. PCT/EP2021/084040 § 371(c)(1), (2) Date Jun. 2, 2023, PCT Pub. No. WO2022/122559, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 20212150 (EP), filed on Dec. 7, 2020.
Prior Publication US 2024/0010945 A1, Jan. 11, 2024
Int. Cl. C11D 1/00 (2006.01); C11D 1/29 (2006.01); C11D 1/90 (2006.01); C11D 3/04 (2006.01); C11D 17/00 (2006.01)

CPC C11D 1/29 (2013.01) [C11D 1/90 (2013.01); C11D 3/046 (2013.01); C11D 17/0008 (2013.01); C11D 2111/16 (2024.01); C11D 2111/18 (2024.01)]

13 Claims

1. A liquid aqueous detergent composition comprising,

a. 8 to 30 wt % of a surfactant system comprising,

i. primary surfactant being anionic surfactant comprising

a surfactant A of formula I: (R₁—(OR′)_n—O—SO₃⁻)_xM^x+,

wherein:

R₁is saturated or unsaturated C₈-C₁₆alkyl chain;

R′ is ethylene;

n is from 1 to 15;

x is equal to 1 or 2;

M^x+ is a suitable cation which provides charge neutrality selected from sodium, calcium, potassium and magnesium; and

a surfactant B of formula II: (R₁—O—SO₃⁻)_xM^x+,

wherein:

R₁is saturated or unsaturated C₈-C₁₆alkyl chain;

x is equal to 1 or 2;

M^x+ is a suitable cation which provides charge neutrality selected from sodium, calcium, potassium and magnesium; and

ii. secondary surfactant being amphoteric surfactant comprising betaine;

b. 0.001 to 0.2 wt % of polyethylene oxide having a molecular weight higher than 200,000 g/mol;

c. 0.1 to 5 wt % of an inorganic salt selected from the group consisting of sodium chloride, magnesium sulphate, sodium sulphate and combinations thereof;

wherein:

the weight ratio of surfactant A to surfactant B is smaller than or equal to 1.5;

the ratio of average EO of surfactant A and surfactant B combined to total amount of surfactant B is smaller than or equal to 0.45;

the weight ratio of primary surfactant to secondary surfactant is in the range from 4:1 to 8:1; and

the surfactant system is free of alkylbenzene sulphonates and derivatives thereof; and

wherein the average EO is defined as the weighted mean of the percentages of each EO adduct, with EO number comprised between 0 and 15 present in surfactants A and B,

wherein Xnm is the % of the n^thethoxylation adduct into anionic surfactant m, where m may be either A or B and EOn is the ethoxylation degree of the n^thethoxylation adduct.