Rinse aids for the machine washing of hard surfaces
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsBernd Fabry, Juergen Haerer, Birgit Burg, Marica Nejtek, Peter Jeschke, Udo Hees
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Abstract
A process for rinsing hard surfaces comprising contacting the hard surfaces with an aqueous rinse aid composition containing fatty acid-N-alkyl polyhydroxyalkyl amides corresponding to formula I: ##STR1## wherein R.sup.1 CO is an aliphatic acyl radical containing 6 to 22 carbon atoms, R.sup.2 is hydrogen, an alkyl or hydroxyalkyl radical containing 1 to 4 carbon atoms, and Z! is a linear or branched polyhydroxyalkyl radical containing 3 to 10 carbon atoms and 3 to 10 hydroxyl groups.
Claims13
A process for rinsing hard surfaces comprising contacting the hard surfaces with a rinse aid composition consisting of from 0.5% to 20% by weight of fatty acid-N-alkyl polyhydroxyalkyl amides corresponding to formula I:
- ##STR6## wherein R.sup.1 CO is an aliphatic acyl radical containing 6 to 22 carbon atoms, R.sup.2 is an alkyl or hydroxyalkyl radical containing 1 to 4 carbon atoms, and Z is a linear or branched polyhydroxyalkyl radical containing 3 to 10 carbon atoms and 3to 10 hydroxyl groups up to 20% by weight of a nonionic surfactant, 1% to 50% by weight of a carboxylic acid, and the balance being water, based on the weight of said composition.
A process for making an ecologically and toxicologically safe aqueous rinse aid composition comprising mixing a composition consisting of from 0.5% to 20% by weight of a fatty acid N-alkyl polyhydroxyalkyl amide corresponding to formula I:
- ##STR7## wherein R.sup.1 CO is an aliphatic acyl radical containing 6 to 22 carbon atoms, R.sup.2 is an alkyl or hydroxyalkyl radical containing 1 to 4 carbon atoms, and Z is a linear or branched polyhydroxyalkyl radical containing 3 to 10 carbon atoms and 3 to 10 hydroxyl groups, with from 1% to 50% by weight of a carboxylic acid, up to 20% by weight of a nonionic surfactant, the balance being water, based on the weight of said composition.
The product of the process of claim 16.
A process for rinsing hard surfaces comprising contacting the hard surfaces with a rinse aid composition consisting of 1% to 10% by weight of fatty acid N-alkyl glucamides, 3% to 10% by weight of alkyl oligoglucosides, 3% to 10% by weight of fatty alcohol polyglycol ethers, 1% to 30% by weight of citric acid, and the balance, water, based on the weight of said composition.
Dependencies are inferred from the claim text.