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US 2016/0215239 A1Published application
Dye polymer
AssigneeConopco, Inc., d/b/a UNILEVER
InventorsStephen Norman BATCHELOR, Jayne Michelle BIRD, Karen Maria DEVINE
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Abstract
The present invention provides dye polymers.
Claims13
A blue or violet dye polymer comprising a polyethylene imine covalently bound to a reactive dye, the polyethylene imine having from 6 to 1000000 amine nitrogen atoms, wherein from 20 to 95 mol % of the totality of the protons of the primary and secondary amine nitrogen atoms of the unsubstituted polyethylene imine are substituted by iso-propyl alcohol groups.
Dependencies are inferred from the claim text.