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US 11,311,471 B2Granted
Methods, compositions and uses relating thereto
AssigneeInnospec Limited
InventorsNicholas John Dixon, Matthew Robert Giles, Kimberley Elizabeth Griffiths, Tony Gough, Ian Malcolm McRobbie
Life of this patent
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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.
Claims16
A hair care composition comprising an electrophilic species selected from the group consisting of aldehydes, succinimidyl esters and mixtures thereof;
- and a chelating agent and/or a salt of an amine and a carboxylic acid;
- wherein the aldehyde is a hydroxyl aldehyde having a single hydroxyl substituent, said single hydroxyl substituent located at a 2, 3 or 4 position of said aldehyde, and wherein the succinimidyl ester is a compound of formula (IV):
- wherein R is phenyl or CH3(CH2)n wherein n is 5 to 10;
- and R1 is hydrogen or a sulfonate moiety.
1 more element
Dependencies are inferred from the claim text.