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US 10,294,443 B2Granted
Composition and method
AssigneeReckitt Benckiser Finish B.V.
InventorsKarl Ludwig Gibis, Dietmar Van Loyen, Chris Efstathios Housmekerides
Life of this patent
Estimating the term…
Abstract
A low-foaming composition for cleaning a ware-washing machine comprises water, an alkoxylate, an acid (preferably citric acid), and preferably a phase separation promoter (for example a polyethylene glycol or an ionic salt). The composition is in two separate layers under ambient conditions.
Claims14
A method of cleaning a ware-washing machine, comprising:
- supplying a liquid machine-cleaner composition to the ware-washing machine;
- and
- running a wash cycle of the machine without wares in the machine;
- wherein the machine-cleaner composition is a low-foaming machine-cleaner composition comprising water, an alkoxylate and an acid,
- wherein the machine-cleaner composition comprises two separate liquid layers under ambient conditions,
- wherein the acid is an organic acid and is present in an amount of at least 10 wt %, and
- wherein the alkoxylate is an alcohol ethoxylate having an average 7-15 carbon atoms in the “body” and an average 2-6 moles ethylene oxide in the “tail”, per mole of the alcohol and is present in an amount of at least 5 wt %, wherein the liquid machine cleaner composition does not include any anionic surface active agent.
4 more elements
A method of using a liquid machine-cleaner composition in a dishwashing machine comprising:
- supplying the liquid machine-cleaner composition to the dishwashing machine;
- and
- running a wash cycle of the dishwashing machine without dishes in the dishwashing machine,
- wherein the liquid machine-cleaner composition is a low-foaming machine-cleaner composition comprising water, an alkoxylate and an acid,
- wherein the liquid machine-cleaner composition comprises two separate liquid layers under ambient conditions,
- wherein the acid is an organic acid and is present in an amount of at least 10 wt %, and
- wherein the alkoxylate is an alcohol ethoxylate having an average 7-15 carbon atoms in the “body” and an average 2-6 moles ethylene oxide in the “tail”, per mole of the alcohol and is present in an amount of at least 5 wt %, wherein the liquid machine cleaner composition does not include any anionic surface active agent.
4 more elements
Dependencies are inferred from the claim text.