Laundry care composition comprising polyethylene glycol-based particles comprising a leuco colorant

Patent metadata

Field	Value
Publication number	US-10696929-B2
Application number	US-201916352917-A
Country	US
Kind code	B2
Filing date	Mar 14, 2019
Priority date	Mar 21, 2018
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A laundry care composition having a carrier and a leuco colorant.

First claim

What is claimed is:

1. A laundry care composition comprising a plurality of particles ( 90 ), wherein the particles comprise:
a) from 20% to about 99.9% of polyethylene glycol carrier having a weight average molecular weight from about 2000 to about 13,000; and
b) a leuco colorant;
wherein at least 80% of said particles have a density less than about 1.25 g/cm 3 ;
wherein at least 80% of said particles have a mass between about 0.1 mg to about 5 g;
and wherein each of said particles has a maximum dimension of less than about 10 mm.

2. The laundry care composition according to claim 1 , wherein the leuco colorant 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.

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

and
(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.

4. The laundry care composition according to claim 3 , wherein the leuco colorant conforms to the structure of Formula VI,

wherein each R 4 is independently selected from the group consisting of H, Methyl, Ethyl, ((CH 2 CH 2 O) a (C 3 H 6 O) b )H, and mixtures thereof, wherein at least one R 4 group is ((CH 2 CH 2 O) a (C 3 H 6 O) b )H, wherein each index a is independently an integer from 1-100, each index b is independently an integer from 0-50, and wherein the sum of all the independently selected a integers in all R 4 groups is no more than 200, and the sum of all the independently selected b integers in all R 4 groups is no more than 100, at least two R 4 groups are selected from Methyl and Ethyl.

5. The laundry care composition according to claim 4 , wherein the leuco colorant conforms to the structure of Formula VII

wherein each index c is independently 0, 1 or 2; each R 4 is independently selected from the group consisting of H, Me, Et, ((CH2CH2O)a(C3H6O)b)H, and mixtures thereof, wherein each index a is independently an integer from 1-50; each index b is independently an integer from 0-25, wherein the sum of all the independently selected a integers in the leuco colorant is no more than 100, and the sum of all the independently selected b integers in the leuco colorant is no more than 50.

6. The laundry care composition according to claim 5 , wherein the leuco colorant conforms to the structure of Formula VIII

wherein R 8 is H or CH 3 and each index b is independently on average about 1 to 2.

7. The laundry care composition according to claim 1 , wherein said particles comprise perfume.

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Ditullio Daniel Dale

Classifications

• C11D17/06

  Powder; Flakes; Free-flowing mixtures; Sheets · CPC title

• C11D3/40 Primary

  Dyes {; Pigments} · CPC title

• C11D3/0084

  Antioxidants; Free-radical scavengers · CPC title

• C09B11/12

  without any OH group bound to an aryl nucleus · CPC title

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title