CLEANING COMPOSITIONS

The present invention relates to cleaning compositions, in particular to cleaning compositions for use in heating, ventilation and air-conditioning (HVAC) installations. We describe an acidic cleaning composition concentrate comprising: at least one acid having a pKa1 of 4 or less, wherein the at le...

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Bibliographic Details
Main Authors JOBE, Kajally, GEE, Christopher John
Format Patent
LanguageEnglish
French
Published 03.06.2021
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Summary:The present invention relates to cleaning compositions, in particular to cleaning compositions for use in heating, ventilation and air-conditioning (HVAC) installations. We describe an acidic cleaning composition concentrate comprising: at least one acid having a pKa1 of 4 or less, wherein the at least one acid is at least one organic acid and/or non-oxidising mineral acid; a rheology modifier; and a polar protic solvent. In some examples, compositions may also include at least one of one or more weak nitrogenous bases, one or more carboxylate salts and one or more one surfactants; La présente invention concerne des compositions de nettoyage, en particulier des compositions de nettoyage destinées à être utilisées dans des installations de chauffage, ventilation et climatisation (HVAC). L'invention concerne un concentré de composition de nettoyage acide comprenant: au moins un acide ayant un pKa1 inférieur ou égal à 4, ledit acide étant au moins un acide organique et/ou un acide minéral non oxydant ; un modificateur de rhéologie ; et un solvant protique polaire. Dans certains exemples, les compositions peuvent également comprendre une ou plusieurs bases azotées faibles, un ou plusieurs sels carboxylate et un ou plusieurs tensioactifs.
Bibliography:Application Number: WO2020EP83873