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US 9,790,453 B2Granted
Dye polymer
AssigneeConopco, Inc.
InventorsStephen Norman Batchelor, Sheng Meng, Qingsheng Tao, Jinfang Wang
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Abstract
The present invention relates to polymeric shading dye and their use in laundry applications. The polymers are alkoxylated polyethylene imines and the dyes are reactive dyes.
Claims9
A dye polymer, the dye polymer comprising a core polyamine of which from 90 to 100 mol % of the primary and secondary amines of the core polyamine are alkoxylated and from 0.1 to 30 mol % of the primary and secondary amines of the core polyamine are covalently bound to a reactive dye, wherein the reactive dye is selected from a chromophore selected from the group consisting of:
- azo;
- anthraquinone;
- phthalocyanine;
- and, triphendioxazine;
- wherein a molecular weight of the core polyamine is 500 to 1000;
- wherein the core polyamine is a polyethylene-imine;
- and
- wherein the primary and secondary amines of the core polyamine are alkoxylated with polyalkylene oxide chains having repeat units of alkoxy moieties in a range from 5 to 30.
5 more elements
Dependencies are inferred from the claim text.