Leuco colorants as bluing agents in laundry care compositions

Patent metadata

Field	Value
Publication number	US-10676699-B2
Application number	US-201715800114-A
Country	US
Kind code	B2
Filing date	Nov 1, 2017
Priority date	Nov 1, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A laundry care composition including: (a) at least one laundry care ingredient and (b) a leuco composition. The laundry care composition after 30 days of storage at 25° C. provides a whiteness benefit to cotton upon washing that is greater than the initial whiteness benefit. Methods of treating textiles with such laundry care compositions.

First claim

We claim:

1. A laundry care composition comprising: (a) at least one laundry care ingredient and (b) a leuco composition, wherein the laundry care composition has a Whiteness Improvement Number (WIN x ) of at least 5% after 14 days of storage at 50° C.

2. The laundry care composition of claim 1 , wherein the laundry care composition has a Whiteness Improvement Number (WIN x ) of at least 10% after 28 days of storage at 50° C.

3. The laundry care composition of claim 1 , wherein the leuco composition is selected from the group consisting of a diarylmethane leuco, a triarylmethane leuco, an oxazine leuco, a thiazine leuco, a hydroquinone leuco, an arylaminophenol leuco and mixtures thereof.

4. The laundry care composition of claim 1 , wherein the leuco composition is selected from one or more compounds selected from the group consisting of:

(f) mixtures thereof;

wherein the ratio of Formula I-V to its oxidized form is at least 1:3; wherein each individual R o , R m and R p group on each of rings A, B and C is independently selected from the group consisting of hydrogen, deuterium and R 5 ; wherein each R 5 is independently selected from the group consisting of halogens, nitro, alkyl, substituted alkyl, aryl, substituted aryl, alkaryl, substituted alkaryl, —C(O)R 1 , —C(O)OR 1 , —C(O)O − , —C(O)NR 1 R 2 , —OC(O)R 1 , —OC(O)OR 1 , —OC(O)NR 1 R 2 , —S(O) 2 R 1 , —S(O) 2 OR 1 , —S(O) 2 O − , —S(O) 2 NR 1 R 2 , —NR 1 C(O)R 2 , —NR 1 C(O)OR 2 , —NR 1 C(O)SR 2 , —NR 1 C(O)NR 2 R 3 , —OR 1 , —NR 1 R 2 , —P(O) 2 R 1 , —P(O)(OR 1 ) 2 , —P(O)(OR 1 )O − , and —P(O)(O − ) 2 ; wherein at least one of the R o and R m groups on at least one of the three rings A, B or C is hydrogen; each R p is independently selected from hydrogen, —OR 1 and —NR 1 R 2 ;
wherein G is independently selected from the group consisting of hydrogen, deuterium, C 1 -C 16 alkoxide, phenoxide, bisphenoxide, nitrite, nitrile, alkyl amine, imidazole, arylamine, polyalkylene oxide, halides, alkylsulfide, aryl sulfide, and phosphine oxide;
wherein R 1 , R 2 and R 3 are independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, alkaryl, substituted alkaryl, and R 4 ; R 4 is a organic group composed of one or more organic monomers with said monomer molecular weights ranging from 28 to 500;
wherein e and f are independently integers from 0 to 4;
wherein each R 20 and R 21 is independently selected from the group consisting of a halogen, a nitro group, alkyl groups, substituted alkyl groups, —NC(O)OR 1 , —NC(O)SR 1 , —OR 1 , and —NR 1 R 2 ;
wherein each R 25 is independently selected from the group consisting of a monosaccharide moiety, a disaccharide moiety, an oligosaccharide moiety, a polysaccharide moiety, —C(O)R 1 , —C(O)OR 1 , —C(O)NR 1 R 2 ;
wherein each R 22 and R 23 is independently selected from the group consisting of hydrogen, an alkyl group, and substituted alkyl groups;
wherein R 30 is positioned ortho or para to the bridging amine moiety and is selected from the group consisting of —OR 38 and —NR 36 R 37 , wherein each R 36 and R 37 is independently selected from the group consisting of hydrogen, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an acyl group, R 4 , —C(O)OR 1 , —C(O)R 1 , and —C(O)NR 1 R 2 ;
wherein R 38 is selected from the group consisting of hydrogen, an acyl group, —C(O)OR 1 , —C(O)R 1 , and —C(O)NR 1 R 2 ;
wherein g and h are independently integers from 0 to 4;
wherein each R 31 and R 32 is independently selected from the group consisting of an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an alkaryl, substituted alkaryl, —C(O)R 1 , —C(O)OR 1 , —C(O)O − , —C(O)NR 1 R 2 , —OC(O)R 1 , —OC(O)OR 1 , —OC(O)NR 1 R 2 , —S(O) 2 R 1 , —S(O) 2 OR 1 , —S(O) 2 O − , —S(O) 2 NR 1 R 2 , —NR 1 C(O)R 2 , —NR 1 C(O)OR 2 , —NR 1 C(O)SR 2 , —NR 1 C(O)NR 2 R 3 , —OR 1 , —NR 1 R 2 , —P(O) 2 R 1 , —P(O)(OR 1 ) 2 , —P(O)(OR 1 )O − , and —P(O)(O − ) 2 ;
wherein —NR 34 R 35 is positioned ortho or para to the bridging amine moiety and R 34 and R 35 are independently selected from the group consisting of hydrogen, an alkyl, a substituted alkyl, an aryl, a substituted aryl, an alkaryl, a substituted alkaryl, and R 4 ;
wherein R 33 is independently selected from the group consisting of hydrogen, —S(O) 2 R 1 , —C(O)N(H)R 1 ; —C(O)OR 1 ; and —C(O)R 1 ; wherein when g is 2 to 4, any two adjacent R 31 groups may combine to form a fused ring of five or more members wherein no more than two of the atoms in the fused ring may be nitrogen atoms;
wherein X 40 is selected from the group consisting of an oxygen atom, a sulfur atom, and NR 45 ; wherein R 45 is independently selected from the group consisting of hydrogen, deuterium, an alkyl, a substituted alkyl, an aryl, a substituted aryl, an alkaryl, a substituted alkaryl, —S(O) 2 OH, —S(O) 2 O − , —C(O)OR 1 , —C(O)R 1 , and —C(O)NR 1 R 2 ;
wherein R 40 and R 41 are independently selected from the group consisting of —OR 1 and —NR 1 R 2 ;
wherein j and k are independently integers from 0 to 3;
wherein R 42 and R 43 are independently selected from the group consisting of an alkyl, a substituted alkyl, an aryl, a substituted aryl, an alkaryl, a substituted alkaryl, —S(O) 2 R 1 , —C(O)NR 1 R 2 , —NC(O)OR 1 , —NC(O)SR 1 , —C(O)OR 1 , —C(O)R 1 , —OR 1 , —NR 1 R 2 ;
wherein R 44 is —C(O)R 1 , —C(O)NR 1 R 2 , and —C(O)OR 1 ;
wherein any charge present in any of the compounds is balanced with a suitable independently selected internal or external counterion.

5. The laundry care composition of claim 4 , wherein two R o groups on different A, B and C rings combine to form a fused ring of five or more members.

6. The laundry care composition of claim 5 , wherein the fused ring is six or more members and two R o groups on different A, B and C rings combine to form an organic linker containing one or more heteroatoms.

7. The laundry care composition of claim 6 , wherein two R o on different A, B and C rings combine to form a heteroatom bridge selected from —O— and —S— to create a six member fused ring.

8. The laundry care composition of claim 4 , wherein either an R o and R m on the same ring or an R m and R p on the same ring combine to form a fused aliphatic ring or fused aromatic ring.

9. The laundry care composition of claim 4 , wherein all four of the R o and R m groups on at least one of the three rings A, B or C are hydrogen.

10. The laundry care composition of claim 9 , wherein all of the R o and R m groups on all three rings A, B or C are hydrogen.

11. The laundry care composition of claim 4 , wherein all three R p are —NR 1 R 2 .

12. The laundry care composition of claim 4 , wherein G is deuterium.

13. The laundry care composition of claim 4 , wherein the leuco composition has fraction [(deuterium)/(deuterium+hydrogen)] for G is at least 0.20.

14. The laundry care composition of claim 13 , wherein the fraction [(deuterium)/(deuterium+hydrogen)] for G is at least 0.80.

15. The laundry care composition of claim 4 , wherein the organic group may be substituted with one or more additional leuco colorant moieties conforming to the structure of Formula I.

16. The laundry care composition of claim 4 , wherein R 4 is selected from the group consisting of alkyleneoxy, oxoalkyleneoxy, oxoalkyleneamine, epichlorohy

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Ditullio Daniel Dale

Classifications

• C09B69/103

  containing a diaryl- or triarylmethane dye · CPC title

• D06L4/60

  Optical bleaching or brightening · CPC title

• C11D3/42 Primary

  Brightening agents {; Blueing agents} · CPC title

• C11D11/0017

  Chemistry & Metallurgy · mapped topic

• C11D3/40 Primary

  Dyes {; Pigments} · CPC title