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US 10,479,961 B2Granted
Leuco polymers as bluing agents in laundry care compositions
AssigneeThe Procter & Gamble Company
InventorsGregory Scot Miracle, Wesley A. Freund, Sanjeev Kumar Dey
Life of this patent
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Abstract
A laundry care composition including at least one laundry care ingredient and at least one leuco polymer including a polymeric carbohydrate and a leuco moiety. The polymeric carbohydrate and the leuco moiety are covalently bound. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.
Claims10
A laundry care composition comprising:
- (a) at least one laundry care ingredient and (b) at least one leuco polymer comprising a polymeric carbohydrate and a leuco moiety, wherein the polymeric carbohydrate and the leuco moiety are covalently bound, wherein the leuco composition is a compound according to formula (I)
- wherein the ratio of Formula I to its oxidized form is at least 1:3;
- wherein each individual Ro, Rm and Rp group on each of rings A, B and C is independently selected from the group consisting of hydrogen, deuterium and R5;
- wherein each R5 is independently selected from the group consisting of halogens, nitro, alkyl, substituted alkyl, aryl, substituted aryl, alkaryl, substituted alkaryl, —C(O)R1, —C(O)OR1, —C(O)O—, —C(O)NR1R2, —OC(O)R1, —OC(O)OR1, —OC(O)NR1R2, —S(O)2R1, —S(O)2OR1, —S(O)2O—, —S(O)2NR1R2, —NR1C(O)R2, —NR1C(O)OR2, —NR1C(O)SR2, —NR1C(O)NR2R3, —OR1, —NR1R2, —P(O)2R1, —P(O)(OR1)2, —P(O)(OR1)O−, and —P(O)(O−)2;
- wherein all of the Ro and Rm groups on all three rings A, B or C are hydrogen;
- wherein G is hydrogen;
- wherein R1, R2 and R3 are independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, alkaryl, substituted alkaryl, and R4;
- R4 is a organic group composed of one or more organic monomers with said monomer molecular weights ranging from 28 to 500;
- wherein any charge present in any of the compounds is balanced with a suitable independently selected internal or external counterion.
6 more elements
Dependencies are inferred from the claim text.