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US 12,497,576 B2Granted
Hard surface cleaning composition
AssigneeConopco, Inc.
InventorsMaheshwara Shiva Naik, Jiji Paul Kottukapally
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Abstract
The present invention relates to liquid aqueous detergent compositions comprising a surfactant system comprising a primary surfactant being anionic surfactant and a secondary surfactant being amphoteric surfactant whilst the surfactant system is free of alkylbenzene sulphonates and derivatives thereof. The invention further relates to a method of cleaning a stainless-steel hard surface using the composition of the invention, as well as the use thereof.
Claims14
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-)xMx+,
- wherein:
- R1 is saturated or unsaturated C8-C16 alkyl chain;
- R′ is ethylene;
- n is from 1 to 18;
- x is equal to 1 or 2;
- Mx+ 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-)xMx+,
- wherein:
- R1 is saturated or unsaturated C8-C16 alkyl chain;
- x is equal to 1 or 2;
- Mx+ 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. 0.1 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 in the range from 2:1 to 1:2.5;
- wherein the surfactant system is free of alkylbenzene sulphonates and derivatives thereof;
- and
- wherein the weight ratio of primary surfactant to secondary surfactant is in the range from 4:1 to 13:1.
20 more elements
A method of cleaning a stainless-steel hard surface comprising the steps:
- a. contacting the hard surface, optionally in diluted form, with the liquid 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-)xMx+,
- wherein:
- R1 is saturated or unsaturated C8-C16 alkyl chain;
- R′ is ethylene;
- n is from 1 to 18;
- x is equal to 1 or 2;
- Mx+ 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-)xMx+,
- wherein:
- R1 is saturated or unsaturated C8-C16 alkyl chain;
- x is equal to 1 or 2;
- Mx+ 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. 0.1 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 in the range from 2:1 to 1:2.5;
- wherein the surfactant system is free of alkylbenzene sulphonates and derivatives thereof;
- and
- wherein the weight ratio of primary surfactant to secondary surfactant is in the range from 4:1 to 13:1, and
- b. removing the detergent composition from the hard surface by rinsing with water.
22 more elements
Dependencies are inferred from the claim text.