Solid free-flowing particulate laundry detergent composition

Patent metadata

Field	Value
Publication number	US-2016289608-A1
Application number	US-201615084506-A
Country	US
Kind code	A1
Filing date	Mar 30, 2016
Priority date	Mar 30, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

The present invention relates to a solid free-flowing particulate laundry detergent composition comprising: (a) from 0.1 wt % to 5 wt % hueing agent particle comprising: (i) from 2 wt % to 10 wt % hueing agent, wherein the hueing agent has the following structure:

wherein:
R1 and R2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido; R3 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; and (ii) from 60 wt % to 98 wt % clay; and (b) from 35 wt % to 80 wt % spray-dried particle comprising: (a) from 8 wt % to 24 wt % alkyl benzene sulphonate anionic detersive surfactant; (b) from 5 w % to 18 wt % silicate salt; (c) from 0 wt % to 10 wt % sodium carbonate; and (d) from 0 wt % to 5 wt % carboxylate polymer.

First claim

1 . A solid free-flowing particulate laundry detergent composition comprising:
(a) from about 0.1 wt % to about 5 wt % hueing agent particle comprising:
(i) from about 2 wt % to about 10 wt % hueing agent, wherein the hueing agent has the following structure:

wherein:
R1 and R2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido;
R3 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 about four alkyleneoxy moieties; and
(ii) from about 60 wt % to about 98 wt % clay; and

(b) from about 35 wt % to about 80 wt % spray-dried particle comprising:
(a) from about 8 wt % to about 24 wt % alkyl benzene sulphonate anionic detersive surfactant;
(b) from about 5w% to about 18 wt % silicate salt;
(c) wherein the composition is essentially free of sodium carbonate; and
(d) wherein the composition is essentially free of carboxylate polymer.

2 . A composition according to claim 1 , wherein the composition comprises from about 0.5 wt % to about 20 wt % AES particle comprising: (i) from about 40 wt % to about 60 wt % partially ethoxylated alkyl sulphate anionic detersive surfactant, wherein the partially ethoxylated alkyl sulphate anionic detersive surfactant has a molar average degree of ethoxylation of from about 0.8 to about 1.2, and wherein the partially ethoxylated alkyl sulphate anionic detersive surfactant has a molar ethoxylation distribution such that: (i.i) from about 40 wt % to about 50 wt % is unethoxylated; (i.ii) from about 20 wt % to about 30 wt % has a degree of ethoxylation of 1; (i.iii) from about 20 wt % to about 40 wt % has a degree of ethoxylation of about 2 or greater; (ii) from about 20 wt % to about 50 wt % salt, wherein the salt is selected from sulphate salt and/or carbonate salt; and (iii) from about 10 wt % to about 30 wt % silica.

3 . A composition according to claim 1 , wherein the composition comprises from about 1 wt % to about 30 wt % LAS particle comprising:
(a) from about 30 wt % to about 50 wt % alkyl benzene sulphonate anionic detersive surfactant; and (b) from about 50 wt % to about 70 wt % salt, wherein the salt is a sodium salt and/or a carbonate salt.

4 . A composition according to claim 1 , wherein the composition comprises from about 0.1 wt % to about 5 wt % polymer particle comprising:
(a) from about 70 wt % to about 90 wt % co-polymer, wherein the co-polymer comprises:
(i) from about 50 to less than about 98 wt % structural units derived from one or more monomers comprising carboxyl groups;
(ii) from about 1 to less than about 49 wt % structural units derived from one or more monomers comprising sulfonate moieties; and
(iii) from about 1 to about 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;

wherein 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; and

(b) from about lOwt % to about 30 wt % salt, wherein the salt is selected from sulphate salt and/or carbonate salt.

5 . A composition according to claim 1 , wherein the composition comprises from about 0.1 wt % to about 5 wt % silicone particle comprising:
(a) from about 10 wt % to about 20 wt % silicone; and (b) from about 50 wt % to about 80 wt % carrier.

6 . A composition according to claim 1 , wherein the composition comprises:
(a) wherein the composition is essentially free of zeolite builder; (b) wherein the composition is essentially free of phosphate builder; and (c) wherein the composition is essentially free of sodium carbonate.

7 . A composition according to claim 1 , wherein the hueing agent particle comprises montmorillonite clay.

8 . A composition according to claim 1 , wherein the spray-dried particle comprises from about 54 wt % to about 87 wt % sodium sulphate.

9 . A composition according to claim 1 ,wherein the AES particle comprises from about 20 wt % to about 50 wt % sodium sulphate.

10 . A composition according to claim 1 , wherein the weight ratio of partially ethoxylated alkyl sulphate anionic detersive surfactant to silica present in the AES particle is in the range of from about 2:1 to about 5:1.

Assignees

• Procter & Gamble

Inventors

• Tantawy Hossam Hassan
• Porter Adam
• Chieffi Andre
• Dorgan Jill Robyn
• Mcmeekin Anthony
• Gould Paul Anthony
• Caufield William Alexander

Classifications

• C11D3/42 Primary

  Brightening agents {; Blueing agents} · CPC title

• C11D3/3761

  in solid compositions · CPC title

• C11D3/08 Primary

  Silicates · CPC title

• C11D17/06

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

• C11D3/126

  in solid compositions · CPC title