Methods for making encapsulate-containing product compositions

• US 10,611,988 B2
• Filed: 03/16/2017
• Issued: 04/07/2020
• Est. Priority Date: 03/16/2017
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Song, Xinbei, Kenneally, Corey James, Sadlowski, Eugene Steven, Scheibel, Jeffrey John, Smets, Johan, Vansteenwinckel, Pascale Claire Annick
• Primary Examiner(s): Douyon, Lorna M
• Application Number:
  US15/460,277
• Publication Number:
  US 20180265823A1
• Time in Patent Office: 1,118 Days
• Field of Search: None
• CPC Class Codes: C11D 11/0094 Process for making liquid detergent compositions, e.g. slurries, pastes or gels
• 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 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 3/046 Salts
• CPC Class Codes: C11D 3/201 linear
• CPC Class Codes: C11D 3/2044 linear
• CPC Class Codes: C11D 3/2065 Polyhydric alcohols
• 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 3/33 Amino carboxylic acids
• CPC Class Codes: C11D 3/3753 Polyvinylalcohol; Ethers or esters thereof
• CPC Class Codes: C11D 3/3765 in liquid compositions
• CPC Class Codes: C11D 3/505 encapsulated or adsorbed on a carrier, e.g. zeolite or clay

Abstract

Methods relating to making product compositions that include encapsulates and borate compounds, where the encapsulates include polyvinyl alcohol polymer. Compositions made from such methods. Encapsulate slurries.

Claims

1. A method of making a composition, the method comprising the steps of:

a. providing a first composition and a second composition,

wherein the first composition comprises no more than about 15 wt % of encapsulates, wherein the encapsulates comprise a polyvinyl alcohol polymer;

wherein the second composition comprises a borate compound; and

wherein the first composition further comprises a cross-linking inhibitor;

b. combining the first composition and the second composition to form a product composition.

2. A method according to claim 1, wherein the encapsulates are encapsulates that comprise a core and a shell at least partially surrounding the core, wherein the core comprises a benefit agent, and wherein the shell comprises at least a portion of the polyvinyl alcohol polymer.

3. A method according to claim 2, wherein the benefit agent of the core comprises perfume raw materials.

4. A method according to claim 2, wherein the core further comprises a partitioning modifier.

5. A method according to claim 2, wherein the shell comprises a shell material selected from the group consisting of polyethylenes;

polyamides;

polystyrenes;

polyisoprenes;

polycarbonates;

polyesters;

polyacrylates;

acrylics;

aminoplasts;

polyolefins;

polysaccharides;

gelatin;

shellac;

epoxy resins;

vinyl polymers;

water insoluble inorganics;

silicone; and

mixtures thereof.

6. A method according to claim 2, wherein the shell comprises a shell material selected from the group consisting of a polyacrylate, a polyethylene glycol acrylate, a polyurethane acrylate, an epoxy acrylate, a polymethacrylate, a polyethylene glycol methacrylate, a polyurethane methacrylate, an epoxy methacrylate, and mixtures thereof.

7. A method according to claim 6, wherein the shell material comprises a polyacrylate.

8. A method according to claim 1, wherein the borate compound is selected from the group consisting of boric acid, boric acid derivatives, and combinations thereof.

9. A method according to claim 1, wherein the borate compound is present in the product composition at a level of about 0.1 wt % to about 10 wt %, by weight of the product composition.

10. A method according to claim 1, wherein the cross-linking inhibitor comprises at least one moiety capable of forming hydrogen bonds with polyvinyl alcohol and/or with borate compounds.

11. A method according to claim 10, wherein the at least one moiety is selected from the group consisting of —

OH, —

SH, —

NH₂, —

COOH, and combinations thereof.

12. A method according to claim 1, wherein the cross-linking inhibitor is a reduced sugar.

13. A method according to claim 1, wherein the cross-linking inhibitor is selected from the group consisting of:

sorbitol;

mannitol;

galactitol;

xylitol;

threitol;

glycerol;

2, 3-butanediol;

2-methy-1,3-propanediol;

2, 4-pentanediol;

1,3-propanediol;

N-methyl-D-glucamine;

2-amino-1,3-propanediol;

2-hydroxymethyl-1,3-propanediol;

2-amino-1,3-propanediol;

urea;

guanidine hydrochloride and combinations thereof.

14. A method according to claim 1, wherein the cross-linking inhibitor is selected from the group consisting of:

sortibol;

mannitol;

1,3-propanediol;

glycerol; and

combinations thereof.

15. A method according to claim 1, wherein the cross-linking inhibitor is sorbitol.

16. A method according to claim 1, wherein the cross-linking inhibitor is an amino sugar.

17. A method according to claim 1, wherein the cross-linking inhibitor is a polysaccharide.

18. A method according to claim 1, wherein the product composition comprises from about 0.01 wt % to about 5 wt % of the encapsulates.

19. A method according to claim 1, wherein the product composition further comprises an enzyme.

20. A method according to claim 1, wherein the product composition further comprises an external structurant.

21. A method according to claim 1, wherein the product composition comprises from about 5 wt % to about 60 wt % of surfactant.

22. A method according to claim 1, wherein the product composition comprises no more than 5 encapsulates per gram of product composition, as determined by the Method for Determining Number of Particles (“

AN212 Method”

).

23. A method according to claim 1, wherein either the first composition or the second composition is a base detergent comprising from about 5 wt % to about 75 wt % of a surfactant system.