Consumer product compositions comprising a population of encapsulates

Patent metadata

Field	Value
Publication number	US-12398348-B2
Application number	US-202117500974-A
Country	US
Kind code	B2
Filing date	Oct 14, 2021
Priority date	Oct 16, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Consumer product compositions, such as fabric care compositions, that include a treatment adjunct and a population of encapsulates, where the encapsulates comprise a core and a shell surrounding the core, where the shell comprises an acrylate material, where the core includes a benefit agent, and where the population is characterized by a core-shell weight ratio of equal to or greater than 95:5. Related methods of using and making such compositions.

First claim

What is claimed is:

1. A consumer product composition comprising a treatment adjunct and a population of encapsulates,
wherein the encapsulates comprise a core and a shell surrounding the core,
wherein the shell comprises an acrylate material,
wherein the core comprises a benefit agent,
wherein the core and the shell are present in a core:shell weight ratio of at least about 98:2 for the population,
wherein the population of encapsulates is characterized by a Broadness Index of at least 1.0, and a Delta Fracture Strength of less than 400%, and
wherein the population of encapsulates comprises a median volume-weighted particle size of from about 25 microns to about 50 microns.

2. The consumer product composition according to claim 1 , wherein the population of encapsulates comprises:
first encapsulates at the 5 th percentile volume-weighted particle size, wherein the first encapsulates are characterized by a first average Fracture Strength;
second encapsulates at the 90 th percentile volume-weighted particle size, wherein the second encapsulates are characterized by a second average Fracture Strength;
wherein at least one of the following is true:
i) the first and second average Fracture Strengths are each and independently from about 0.5 to about 10 MPa; and/or
ii) the difference between the first and second average Fracture Strengths is less than 10 MPa.

3. The consumer product composition according to claim 1 , wherein the acrylate material comprises a (meth)acrylate polymer derived from a multifunctional (meth)acrylate monomer or oligomer having at least three radical polymerizable functional groups,
with the proviso that at least one of the radical polymerizable groups is acrylate or methacrylate.

4. The consumer product composition according to claim 1 , wherein the multifunctional (meth)acrylate monomer or oligomer has at least four radical polymerizable functional groups.

5. The consumer product composition according to claim 1 , wherein the multifunctional (meth)acrylate monomer or oligomer comprises a multifunctional aromatic urethane acrylate.

6. The consumer product composition according to claim 1 , wherein the acrylate material is derived from at least two different monomers or oligomers.

7. The consumer product composition according to claim 1 , wherein the acrylate material is further derived, at least in part, from at least one free radical initiator, wherein the at least one free radical initiator is present in amount of from about 2% to about 50% by weight of the shell.

8. The consumer product composition according to claim 1 , wherein the core and the shell are present in a core:shell weight ratio of from about 98:2 to about 99.5:0.5.

9. The consumer product composition according to claim 1 , wherein the population of encapsulates is characterized by a Broadness Index of at least 1.1.

10. The consumer product composition according to claim 1 , wherein the population of encapsulates is characterized by a Delta Fracture Strength of less than or equal to 200%.

11. The consumer product composition according to claim 1 , wherein the population of encapsulates is further characterized by:
the 5th-percentile volume-weighted particle size is from about 1 micron to about 15 microns; or
the 90th-percentile volume-weighted particle size is from about 20 microns to about 65 microns.

12. The consumer product composition according to claim 1 , wherein the population of encapsulates is further characterized by:
the 5th-percentile volume-weighted particle size is from about 1 micron to about 15 microns;
and
the 90th-percentile volume-weighted particle size is from about 20 microns to about 65 microns.

13. The consumer product composition according to claim 1 , wherein the core further comprises a partitioning modifier, wherein said partitioning modifier comprising a material selected from the group consisting of vegetable oil, modified vegetable oil, mono-, di-, and tri-esters of C 4 -C 24 fatty acids, isopropyl myristate, dodecanophenone, lauryl laurate, methyl behenate, methyl laurate, methyl palmitate, methyl stearate, and mixtures thereof.

14. The consumer product composition according to claim 1 , wherein the shell of the encapsulates further comprises a coating material.

15. The consumer product composition according to claim 1 ,
wherein the population of encapsulates recited in claim 1 is a first population of encapsulates,
wherein the composition further comprises a second population of encapsulates, wherein the encapsulates of the second population comprise a core and a shell surrounding the core, wherein the core comprises a benefit agent, wherein the encapsulates of the second population are characterized by one or more of the following, compared to the first population of encapsulates:
a different core composition, a different benefit agent, a different shell, a different core:shell weight ratio, a different volume-weighted median particle size, a different 5th-percentile volume-weighted particle size, a different 90th-percentile volume-weighted particle size, a different Broadness Index, a different Delta Fracture Strength, a different average Fracture Strength for particles at the 5th-percentile volume-weighted particle size, a different average Fracture Strength for particles at the 90 th percentile volume-weighted particle size, or combinations thereof.

16. The consumer product composition according to claim 1 , wherein the treatment adjunct is selected from the group consisting of surfactants, conditioning actives, deposition aids, rheology modifiers or structurants, bleach systems, stabilizers, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, silicones, hueing agents, aesthetic dyes, neat perfume, additional perfume delivery systems, structure elasticizing agents, carriers, hydrotropes, processing aids, anti-agglomeration agents, coatings, formaldehyde scavengers, pigments, and mixtures thereof.

17. The consumer product composition according to claim 1 , wherein the composition is in the form of a liquid composition, a granular composition, a hydrocolloid, a single-compartment pouch, a multi-compartment pouch, a dissolvable sheet, a pastille or bead, a fibrous article, a tablet, a stick, a bar, a flake, a foam/mousse, a non-woven sheet, or a mixture thereof.

18. A method of treating a fabric load, wherein the method comprises contacting the fabric load with a treatment liquor,
wherein the treatment liquor comprises the composition according to claim 1 diluted with water.

19. The method according claim 18 , wherein the fabric load comprises a first fabric material that is 100% cotton and a second fabric material that is not 100% cotton.

20. The method according to claim 18 , wherein the fabric load comprises at least two types of fabric materials, wherein a first fabric material is part of a first article or first garment, and wherein a second fabric material is part of a second article or second garment.

Assignees

• Procter & Gamble

Inventors

• Smets Johan
• Pintens An
• Rodrigo-Gomez Raul
• Lameiras Domingues Joana Andreia
• Chakar Fadi Selim
• Feng Linsheng
• Neuman Presley Genevie
• Bobnock Robert Stanley

Classifications

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C11D3/505 Primary

  encapsulated or adsorbed on a carrier, e.g. zeolite or clay · CPC title

• C11D3/3761

  in solid compositions · CPC title

• C11D17/0039 Primary

  Coated compositions or coated components in the compositions, (micro)capsules · CPC title