Laundry detergent composition comprising a particle having hueing agent and clay

Patent metadata

Field	Value
Publication number	US-9540599-B2
Application number	US-201313868260-A
Country	US
Kind code	B2
Filing date	Apr 23, 2013
Priority date	May 9, 2012
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

The present invention relates to a laundry detergent composition comprising a particle comprising hueing agent and clay. The particle can be incorporated into laundry detergent products, such as a laundry detergent powder. The particle exhibits an excellent storage stability profile with very little bleeding of the hueing dye from the particle, exhibits excellent fabric deposition of the hueing dye during a laundering process without causing any spot staining of the fabric, and does not impact the visual appearance of a laundry detergent powder when incorporated therein.

First claim

What is claimed is:

1. A particle consisting of:
(a) from 0.0001 wt % to 4 wt % of a hueing agent, wherein the hueing agent has the following structure:

wherein:
R 1 and R 2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido;
R 3 is a substituted aryl group;
X is a substituted group comprising sulfonamide moiety and optionally an alkyl and/or aryl moiety, and wherein the substituted group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties; and
(b) the balance, a blend of natural sodium bentonite clay and a whiter bentonite clay; wherein the whiter bentonite clay is selected from the group consisting of calcium bentonite, synthetic sodium bentonite and mixtures thereof.

2. A particle according to claim 1 , wherein the hueing agent has the following structure:

wherein:
R 1 and R 2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido;
U is a hydrogen, a substituted or unsubstituted amino group;
W is a substituted group comprising an amino moiety and optionally an alkyl and/or aryl moiety, and wherein the substituted group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties;
Y is a hydrogen or a sulfonic acid moiety; and
Z is a sulfonic acid moiety or an amino group substituted with an aryl group or an alkyl group.

3. A particle according to claim 2 , wherein R 1 is an alkoxy group and R 2 is an alkyl group.

4. A particle according to claim 3 , wherein R 1 is a C 1 -C 10 alkoxy and R 2 is a C 1 -C 10 alkyl.

5. A particle according to claim 1 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 2000 micrometers.

6. A particle according to claim 5 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 1500 micrometers.

7. A particle according to claim 6 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 1000 micrometers.

8. A particle according to claim 7 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 500 micrometers.

9. A particle according to claim 8 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 300 micrometers.

10. A particle according to claim 9 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 200 micrometers.

11. A particle consisting of:
(a) from 0.0001 wt % to 4 wt % of a hueing agent, wherein the hueing agent has the following structure:

wherein:
R 1 and R 2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido;
R 3 is a substituted aryl group;
X is a substituted group comprising sulfonamide moiety and optionally an alkyl and/or aryl moiety, and wherein the substituted group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties; and
(b) the balance, a blend of natural clay and a whiter bentonite clay; wherein the whiter bentonite clay is selected from the group consisting of calcium bentonite, synthetic sodium bentonite and mixtures thereof.

12. A particle according to claim 11 , wherein the natural clay is natural montmorillonite clay.

13. A particle according to claim 11 , wherein the natural clay is natural bentonite clay.

14. A particle according to claim 11 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 2000 micrometers.

15. A particle according to claim 14 , wherein at least 95 wt % of the blend of clays has a particle size in the range of from 50 micrometers to 200 micrometers.

Assignees

• Milliken & Co

Inventors

• Fernandes Gregory E
• Valenti Dominick J
• Stenger Patrick C
• Miracle Gregory S
• Moon Andrew P
• Mcdonnell Michael

Classifications

• C09B67/0007 Primary

  with inorganic coatings · CPC title

• C11D17/0034

  Fixed on a solid conventional detergent ingredient · CPC title

• C09B67/0097

  Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes · CPC title

• C11D3/40

  Dyes {; Pigments} · CPC title

• C11D3/126

  in solid compositions · CPC title