Abstract: The use of a compound as a corrosion inhibitor for metallic equipment, where the compound includes (i) a salt of an optionally substituted polycarboxylic acid or an anhydride thereof; and/or (ii) the reaction product of reactants comprising an optionally substituted polycarboxylic acid or an anhydride thereof and an alcohol and/or an amine, or a salt of the reaction product.

Abstract: A concentrate composition comprising: (a) at least 0.1 wt % of a surfactant compound; and (b) at least 10 wt % one or more ingredients selected from aldehydes, succinimidyl esters, chelating agents and amine salts of carboxylic acids.

Abstract: An adduct of ethylenediamine disuccinic acid or a salt thereof and a further polycarboxylic acid or a salt thereof wherein the further polycarboxylic acid is selected from citric acid, polyaspartic acid, tartaric acid, malonic acid, maleic acid, carboxymethyl inulin, oxalic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, malic acid and fumaric acid; and wherein said adduct is in the form of a free flowing particulate solid; wherein EDDS is present in the adduct in a molar excess compared with the further polycarboxylic acid.

Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising a hydroxy-substituted aldehyde. In preferred aspects of the invention the material is a keratinous material.

Abstract: A method of treating a material, the method comprising the steps of: (1) contacting the material with a composition comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof; (2) contacting the material with a composition comprising a chelating agent and/or a salt of an amine and/or a carboxylic acid.

Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising an alpha-substituted aldehyde.

Abstract: A method of combating colour loss from a dyed material, the method comprising contacting the material with a composition comprising a hydroxy-substituted aldehyde.

Abstract: A method of combatting colour loss from a dyed material, the method comprising contacting the material with a composition comprising an amine salt of a carboxylic acid wherein the carboxylic acid has 4 to 10 carbon atoms.

Abstract: A method of combatting colour loss from a dyed material, the method comprising the steps of: (1) contacting the material with a composition comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof; (2) contacting the material with a composition comprising a chelating agent and/or a salt of an amine and/or a carboxylic acid.

Abstract: A method of combatting colour loss from a dyed material, the method comprising contacting the material with a composition comprising an alpha-substituted aldehyde.

Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising a hydroxy-substituted aldehyde. In preferred aspects of the invention the material is a keratinous material.

Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising a hydroxy-substituted aldehyde.

Abstract: A method of combating colour loss from a dyed material, the method comprising contacting the material with a composition comprising a compound of formula (I): (I) wherein R is an optionally substituted hydrocarbyl group having at least 5 carbon atoms, and R is hydrogen or a solubilising group.

Abstract: A method of treating a material, the method comprising the steps of: (1) contacting the material with a composition comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof; (2) contacting the material with a composition comprising a chelating agent and/or a salt of an amine and/or a carboxylic acid.