LIQUID TREATMENT UNITIZED DOSE COMPOSITION

• US 20090209445A1
• Filed: 09/22/2008
• Published: 08/20/2009
• Est. Priority Date: 03/22/2006
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Vetter, Kerry Andrew, Panandiker, Rajan Keshav, Dunlop, David Scott, Braeckman, Karl Ghislain
• Granted Patent: US 8,357,648 B2
• Time in Patent Office: Days
• US Class Current: 510/296
• CPC Class Codes: C11D 1/74 Carboxylates or sulfonates esters of polyoxyalkylene glycols
• CPC Class Codes: C11D 17/0013 Liquid compositions with insoluble particles in suspension C11D17/0021, C11D17/0026, C11D17/003 take precedence
• CPC Class Codes: C11D 17/003 Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
• CPC Class Codes: C11D 17/043 Liquid or thixotropic (gel) compositions
• CPC Class Codes: C11D 3/0015 liquid
• CPC Class Codes: C11D 3/0089 Pearlescent compositions; Opacifying agents
• CPC Class Codes: C11D 3/12 Water-insoluble compounds
• CPC Class Codes: C11D 3/124 Silicon containing, e.g. silica, silex, quartz or glass beads
• CPC Class Codes: C11D 3/1293 Feldspar; Perlite; Pumice or Portland cement
• CPC Class Codes: C11D 3/2093 Esters; Carbonates
• CPC Class Codes: C11D 3/221 Mono, di- or trisaccharides or derivatives thereof
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/225 etherified, e.g. CMC
• CPC Class Codes: C11D 3/227 with nitrogen-containing groups
• CPC Class Codes: C11D 3/3723 Polyamines or polyalkyleneimines
• CPC Class Codes: C11D 3/373 containing silicones
• CPC Class Codes: C11D 3/3734 Cyclic silicones
• CPC Class Codes: C11D 3/3742 Nitrogen containing silicones
• CPC Class Codes: C11D 3/3749 Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins
• CPC Class Codes: C11D 3/3765 in liquid compositions
• CPC Class Codes: C11D 3/3773 : in liquid compositions
• CPC Class Codes: C11D 3/3776 : Heterocyclic compounds, e.g. lactam
• CPC Class Codes: C11D 3/382 : Vegetable products, e.g. soya meal, wood flour, sawdust
• CPC Class Codes: C11D 3/40 : Dyes ; Pigments
• CPC Class Codes: C11D 3/42 : Brightening agents ; Blueing agents

Abstract

According to the present invention there is provided a pearlescent unitary dose composition comprising a water-soluble film encapsulating a liquid treatment composition suitable for use as a laundry or hard surface cleaning composition having turbidity of greater than 5 and less than 3000 NTU, said composition comprising a pearlescent agent and from 2% to 15% by weight of the composition of water.

Claims

1. A pearlescent unitary dose composition comprising a water-soluble film encapsulating a liquid treatment composition suitable for use as a laundry or hard surface cleaning composition having turbidity of greater than 5 and less than 3000 NTU, said composition comprising a pearlescent agent and from 2% to 15% by weight of the composition of water.

3. A pearlescent unitary dose composition according to claim 1 wherein the water-soluble film is polyvinyl alcohol.

4. A pearlescent unitary dose composition according to claim 1 wherein the volume particle size of the pearlescent agent has D0.99 is less than 50 μ

m.

5. A pearlescent unitary dose composition according to claim 1 wherein the pearlescent agent has platelet or spherical geometry.

6. A pearlescent unitary dose composition according to claim 1 wherein the pearlescent agent is present at a level of from 0.01% to 2.0%, more preferably from 0.01% to 0.5%, more preferably from 0.01% to 0.2% by weight of the composition.

7. A pearlescent unitary dose composition according to claim 1 wherein the composition has viscosity of from 1 to 1500 mPa*s at 20⁻

1 at 21°

C.

8. A pearlescent unitary dose composition according to claim 1 wherein the pearlescent agent is selected from the group consisting of organic or inorganic pearlescent agents.

9. A pearlescent unitary dose composition according to claim 1 wherein the pearlescent agent is an organic pearlescent agent selected from the group having the formula:

wherein R₁ is linear or branched C12-C22 alkyl chain;

R is linear or branched C2-C4 alkylene group;

P is selected from H, C1-C4 alkyl or —

COR₂, R₂ is C4-C22 alkyl; and

n=1−

10. A pearlescent unitary dose composition according to claim 1 wherein the pearlescent agent is an inorganic pearlescent agents selected from the group consisting of mica, metal oxide coated mica bismuth oxychloride coated mica, bismuth oxychloride, glass, metal oxide coated glass and mixtures thereof.

19. A pearlescent unitary dose composition according to claim 1 additionally comprising a viscosity modifier selected from polyacrylate polymers, polymeric gums, non-gum polysaccharides, crystalline hydroxy containing fatty acids, fatty esters, fatty waxes and mixtures thereof.

20. A pearlescent unitary dose composition according to claim 1 additionally comprising a laundry care benefit agent selected from the group consisting of cationic surfactants, silicones, polyolefin waxes, latexes, oily sugar derivatives, cationic polysaccharides, polyurethanes and mixtures thereof.

33. A method for treating a substrate in need of treatment comprising contacting the substrate with a pearlescent liquid treatment composition according to claim 1 such that the substrate is treated.

2. A pearlescent unitary dose composition comprising a water-soluble film encapsulating a liquid treatment composition suitable for use as a laundry or hard surface cleaning composition, wherein said composition comprises a pearlescent agent and from 2% to 15% by weight of the composition of water and wherein the difference in refractive index (Δ

N) of the medium in which the pearlescent agent is suspended and the pearlescent agent is greater than 0.02.

11. A pearlescent unitary dose composition according to claim 2 wherein the water-soluble film is polyvinyl alcohol.

12. A pearlescent unitary dose composition according to claim 2 wherein the volume particle size of the pearlescent agent has D0.99 is less than 50 μ

m.

13. A pearlescent unitary dose composition according to claim 2 wherein the pearlescent agent has platelet or spherical geometry.

14. A pearlescent unitary dose composition according to claim 2 wherein the pearlescent agent is present at a level of from 0.01% to 2.0%, more preferably from 0.01% to 0.5%, more preferably from 0.01% to 0.2% by weight of the composition.

15. A pearlescent unitary dose composition according to claim 2 wherein the composition has viscosity of from 1 to 1500 mPa*s at 20⁻

1 at 21°

C.

16. A pearlescent unitary dose composition according to claim 2 wherein the pearlescent agent is selected from the group consisting of organic or inorganic pearlescent agents.

17. A pearlescent unitary dose composition according to claim 2 wherein the pearlescent agent is an organic pearlescent agent selected from the group having the formula:

wherein R₁ is linear or branched C12-C22 alkyl chain;

R is linear or branched C2-C4 alkylene group;

P is selected from H, C1-C4 alkyl or —

COR₂, R₂ is C4-C22 alkyl; and

n=1−

18. A pearlescent unitary dose composition according to claim 2 wherein the pearlescent agent is an inorganic pearlescent agents selected from the group consisting of mica, metal oxide coated mica bismuth oxychloride coated mica, bismuth oxychloride, glass, metal oxide coated glass and mixtures thereof.

21. A pearlescent unitary dose composition according to claim 2 additionally comprising a viscosity modifier selected from polyacrylate polymers, polymeric gums, non-gum polysaccharides, crystalline hydroxy containing fatty acids, fatty esters, fatty waxes and mixtures thereof.

22. A pearlescent unitary dose composition according to claim 2 additionally comprising a laundry care benefit agent selected from the group consisting of cationic surfactants, silicones, polyolefin waxes, latexes, oily sugar derivatives, cationic polysaccharides, polyurethanes and mixtures thereof.

34. A method for treating a substrate in need of treatment comprising contacting the substrate with a pearlescent liquid treatment composition according to claim 2 such that the substrate is treated.

23. A pearlescent unitary dose composition suitable for laundry or hard surface cleaning comprising a water-soluble film encapsulating a liquid treatment composition comprising:

(a) from about 0.5% to about 20% by weight of the composition of a pre-crystallised organic pearlescent dispersion premix, which comprises

(i) a pearlescent agent having the formula;

wherein R₁ is linear or branched C12-C22 alkyl chain;

R is linear or branched C2-C4 alkylene group;

P is selected from H, C1-C4 alkyl or —

COR₂, R₂ is C4-C22 alkyl; and

n=1-3;

(ii) a surfactant selected from the group consisting of linear or branched C12-C14 alkyl sulfate, alkyl ether sulfate, and mixtures thereof;

(iii) water and adjuncts selected from the group consisting of buffers, pH modifiers, viscosity modifiers, ionic strength modifiers, fatty alcohols, amphoteric surfactants, and mixtures thereof;

(b) carrier; and

(c) optionally, a laundry adjunct;

wherein the detergent composition has a viscosity of from about 1 to about 1000 mPa*s at 20<sup>−

1</sup> and 21°

C.

24. A pearlescent unitary dose composition according to claim 23 wherein the pearlescent agent comprises mono- and di-fatty acid ethylene glycol ester having a weight ratio ranging from about 1:

2 to about 2;

1.

25. A pearlescent unitary dose composition according to claim 23 wherein the pearlescent agent has one or more C12-C22 fatty acyl moieties.

26. A pearlescent unitary dose composition according to claim 23 wherein the pearlescent agent has one or more C16-C22 fatty acyl moieties.

27. A pearlescent unitary dose composition according to claim 23 wherein the pearlescent agents are ethylene glycol mono- and di-stearates.

28. A pearlescent unitary dose composition according to claim 23 further comprising a co-crystallizing agent selected from the group consisting of

(i) fatty acid having a C16-C22 alkyl, alkenyl, alkylaryl or alkoxy moiety;

(ii) fatty alcohol having a C16-C22 alkyl, alkenyl, alkylaryl or alkoxy moiety; and

iii) mixtures thereof.

29. A pearlescent unitary dose composition according to claim 23 wherein a weight ratio of the pearlescent agent to the co-crystallizing agent ranges from about 3:

1 to about 10;

1.

30. A pearlescent unitary dose composition according to claim 23 wherein the co-crystallizing agent comprises from about 1% to about 5% by weight of the composition.

31. A pearlescent unitary dose composition according to claim 23 wherein the pearlescent effect is provided by crystals of the fatty acid ethylene glycol esters and the co-crystallizing agent, the crystals being dispersed in the carrier comprising the surfactant.

32. A method for producing a pearlescent detergent composition according to claim 23 comprising the steps of:

forming a pearlescent dispersion by mixing a pearlescent agent, a surfactant, water and optionally, a co-crystallizing agent at about 60°

C. to about 90°

C. and followed by cooling the resulting mixture to room temperature at a cooling rate of about 0.5-5°

C./min;

mixing the pearlescent dispersion from a) with one or more laundry adjuncts