Liquid hand dishwashing composition
AssigneeThe Procter & Gamble Company
InventorsVictor Manuel ARREDONDO, Jan Julien Marie-Louise BILLIAUW, Natalia STERGIOPOULOU, Phillip Kyle VINSON
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Abstract
The need for a liquid hand dishwashing composition which comprises surfactant which is derived from more renewable sources, while still providing good performance, especially suds-mileage in the presence of greasy-particulate soils and hard water, and grease cleaning, is met by formulating the liquid hand dishwashing composition using an alkyl alkanolamide sulfate anionic surfactant in combination with an alkyl sulfate anionic surfactant.
Claims20
A liquid hand dishwashing detergent composition comprising:
- from 5.0% to 50% by weight of the liquid hand dishwashing detergent composition of a surfactant system, wherein the surfactant system comprises anionic surfactant, wherein the anionic surfactant comprises:
- a. an alkyl alkanolamide sulfate anionic surfactant, wherein the alkyl alkanolamide sulfate anionic surfactant has the formula:
- wherein:
- R is an alkyl chain comprising a number average of from 7 to 17 carbon atoms;
- R′ is an alkyl chain comprising a number average of from 1 to 3 carbon atoms;
- X is H or C1 to C3 alkyl;
- and
- M+ is a counterion;
- and
- b. alkyl sulfate anionic surfactant, wherein the alkyl sulfate anionic surfactant has an average degree of alkoxylation of less than 0.1.
A process for making a concentrated surfactant blend comprising the alkyl alkanolamide sulfate anionic surfactant having the formula:
- and alkyl sulfate anionic surfactant, wherein the alkyl sulfate anionic surfactant has an average degree of alkoxylation of less than 0.1;
- wherein the process comprises the following steps:
- a. providing a nonionic stream, wherein the nonionic stream comprises:
- at least one alkyl alkanolamide of formula (II):
- and
- at least one alkyl alcohol, wherein the at least one alkyl alcohol has an average degree of alkoxylation of less than 0.1;
- b. a sulfation step, during which the at least one alkyl alkanolamide of formula (II) and at least one alkyl alcohol in the nonionic stream is sulfated to form a sulfuric acid stream comprising at least one alkyl alkanolamide sulfuric acid and at least one alkyl sulfuring acid;
- c. providing a neutralising stream comprising at least one neutralising agent;
- and
- d. a neutralisation step, during which the sulfuric acid stream and the neutralising stream are combined, in order to neutralise the at least one alkyl alkanolamide sulfuric acid and at least one alkyl sulfuric acid.
Dependencies are inferred from the claim text.