Laundry detergent composition comprising a particle having hueing agent and clay

Patent metadata

Field	Value
Publication number	US-9540600-B2
Application number	US-201313874548-A
Country	US
Kind code	B2
Filing date	May 1, 2013
Priority date	May 9, 2012
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A laundry detergent composition having a particle, wherein the particle has: (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 substituent group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties; (b) clay; and (c) another detergent ingredient.

First claim

What is claimed is:

1. A laundry detergent composition comprising: (1) from 0.01 wt % to 5 wt % of a particle, wherein the particle consists 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 substituent group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties;
(b) clay, wherein said and the balance, clay is a blend of natural sodium bentonite clay and a whiter bentonite;
wherein the whiter bentonite is selected from the group consisting of calcium bentonite, synthetic sodium bentonite and mixtures thereof, wherein at least 95 wt % of the clay has a particle size in the range of from 50 micrometers to 200 micrometers; (2) C.I. fluorescent brightener 260 having the following structure:

wherein the C.I. fluorescent brightener 260 is either:
predominantly in alpha-crystalline form; or
predominantly in beta-crystalline form and having a weight average primary particle size of from 3 to 30 micrometers; (3) an enzyme selected from the group consisting of:
(a) a variant of thermomyces lanuginosa lipase having >90% identity with the wild type amino acid and comprises substitution(s) at T231 and/or N233;
(b) a cleaning cellulase belonging to Glycosyl Hydrolase family 45;
(c) a variant of AA560 alpha amylase endogenous to Bacillus sp. DSM 12649 having:
(i) mutations at one or more of positions 9, 26, 149, 182, 186, 202, 257, 295, 299, 323, 339 and 345; and
(ii) one or more substitutions and/or deletions in the following positions: 118, 183, 184, 195, 320 and 458; and
(d) any combination thereof; and
(4) a detersive surfactant which comprises:
(i) alkoxylated alkyl sulphate anionic detersive surfactant having an average degree of alkoxylation of from 0.5 to 5; and/or
(ii) predominantly C 12 alkyl sulphate anionic detersive surfactant; and/or
(iii) less than 25 wt % non-ionic detersive surfactant,
wherein the composition is substantially free of zeolite builder and phosphate builder.

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

4. A composition 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 composition according to claim 1 , wherein the composition is in the form of free flowing laundry detergent particles.

6. A composition according to claim 1 , wherein the composition further comprises a clay and soil removal/anti-redeposition agent selected from the group consisting of:
(a) random graft co-polymers comprising:
(i) hydrophilic backbone comprising polyethylene glycol; and
(ii) hydrophobic side chain(s) selected from the group consisting of: C 4 -C 25 alkyl group, polypropylene, polybutylene, vinyl ester of a saturated C 1 -C 6 mono-carboxylic acid, C 1 -C 6 alkyl ester of acrylic or methacrylic acid, and mixtures thereof;
(b) cellulosic polymers having a degree of substitution (DS) of from 0.01 to 0.99 and a degree of blockiness (DB) such that either DS+DB is of at least 1.00 or DB+2DS−DS 2 is at least 1.20;
(c) co-polymers comprising:
(i) from 50 to less than 98 wt % structural units derived from one or more monomers comprising carboxyl groups;
(ii) from 1 to less than 49 wt % structural units derived from one or more monomers comprising sulfonate moieties; and
(iii) from 1 to 49 wt % structural units derived from one or more types of monomers selected from ether bond-containing monomers represented by formulas (I) and (II):

wherein in formula (I), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5 provided X represents a number 1-5 when R is a single bond, and R 1 is a hydrogen atom or C 1 to C 20 organic group;

in formula (II), R 0 represents a hydrogen atom or CH 3 group, R represents a CH 2 group, CH 2 CH 2 group or single bond, X represents a number 0-5, and R 1 is a hydrogen atom or C 1 to C 20 organic group;
(d) polyester soil release polymers having a structure according to one of the following structures (I), (II) or (III):
—[(OCHR 1 —CHR 2 ) a —O—OC—Ar—CO—] d   (I)

[(OCHR 3 —CHR 4 ) b —O—OC-sAr—CO-] e   (II)

—[(OCHR 5 —CHR 6 ) c —OR 7 ] f   (III)

wherein:
a, b and c are from 1 to 200;
d, e and f are from 1 to 50;
Ar is a 1,4-substituted phenylene;
sAr is 1,3-substituted phenylene substituted in position 5 with SO 3 Me;
Me is Li, K, Mg/2, Ca/2, Al/3, ammonium, mono-, di-, tri-, or tetraalkylammonium wherein the alkyl groups are C 1 -C 18 alkyl or C 2 -C 10 hydroxyalkyl, or any mixture thereof;
R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from H or C 1 -C 18 n- or iso-alkyl; and
R 7 is a linear or branched C 1 -C 18 alkyl, or a linear or branched C 2 -C 30 alkenyl, or a cycloalkyl group with 5 to 9 carbon atoms, or a C 8 -C 30 aryl group, or a C 6 -C 30 arylalkyl group; and
(e) any combination thereof.

7. A composition according to claim 1 , wherein the composition further comprises an oxaziridinium-based bleach catalyst having the formula:

wherein: R 1 is selected from the group consisting of: H, a branched alkyl group containing from 3 to 24 carbons, and a linear alkyl group containing from 1 to 24 carbons; R 2 is independently selected from the group consisting of: H, a branched alkyl group comprising from 3 to 12 carbons, and a linear alkyl group comprising from 1 to 12 carbons; and n is an integer from 0 to 1.

Assignees

• Procter & Gamble

Inventors

• Stenger Patrick Christopher
• Miracle Gregory Scot
• Moon Andrew Philip
• Mcdonnell Michael
• Fernandes Gregory Edward
• Valenti Dominick Joseph

Classifications

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D3/42 Primary

  Brightening agents {; Blueing agents} · CPC title

• C09B67/0095

  Process features in the making of granulates · CPC title

• C09B67/0007 Primary

  with inorganic coatings · CPC title

• C11D3/12

  Water-insoluble compounds · CPC title