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US 11,234,917 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 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.
Claims16
A method of combatting colour loss from a dyed material, the method comprising the steps of:
- (1) contacting the material with a composition comprising a hydroxy-substituted aldehyde selected from the group consisting of hydroxydecanal, 2-hydroxydodecanal, 2-hydroxytetradecanal, 2-hydroxyhexanal, 2-hydroxyoctanal, 2-hydroxypropanal, 6-hydroxyhexanal, 3-hydroxypropanal, 4-hydroxy-but-2-enal, 2-hydroxybutanal, 3-hydroxybutanal and 4-hydroxybutanal;
- and
- (2) contacting the material with a composition comprising a) a chelating agent and/or b) a salt of an amine and a carboxylic acid.
Dependencies are inferred from the claim text.