Liquid compositions that include delivery particles

Patent metadata

Field	Value
Publication number	US-11421188-B2
Application number	US-202016877524-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	May 22, 2019
Publication date	Aug 23, 2022
Grant date	Aug 23, 2022

Abstract

Liquid consumer product compositions that include delivery particles and a consumer product adjunct, where the delivery particles include a graft copolymer and a benefit agent, and where the graft copolymer includes a polyalkylene glycol, vinyl acetate moieties, and N-vinylcaprolactam moieties. Methods of making and using such particles and compositions.

First claim

What is claimed is:

1. A method of making a liquid consumer product composition, the method comprising the steps of:
providing a liquid feedstock composition comprising a benefit agent and a graft copolymer,
the graft copolymer comprising a polyalkylene glycol as a graft base and one or more side chains that comprise vinyl acetate moieties and N-vinylcaprolactam moieties;

combining the feedstock composition with a base composition, the base composition comprising a consumer product adjunct,

wherein the resulting liquid consumer product composition comprises delivery particles that comprise the benefit agent and the graft copolymer,
wherein the delivery particles are characterized by a number-average diameter of from about 0.5 microns to about 5000 microns;

wherein the liquid consumer product composition is a fabric care composition, a hard surface cleaner composition, a dish care composition, a hair care composition, a body cleansing composition, or a mixture thereof.

2. The method according to claim 1 , wherein the liquid consumer product composition comprises from about 1% to about 99%, by weight of the composition, of water.

3. The method according to claim 1 , wherein the graft copolymer is characterized by a weight average molecular weight from about 2000 Daltons to about 500,000 Daltons.

4. The method according to claim 1 , wherein the graft base is characterized by a weight average molecular weight of from about 2000 to about 15,000 Daltons.

5. The method according to claim 1 , wherein the polyalkylene glycol of the graft copolymer comprises polyethylene glycol (“PEG”).

6. The method according to claim 1 , wherein the weight ratio of vinyl acetate moieties to vinylcaprolactam moieties is from about 1:10 to about 10:1.

7. The method according to claim 1 , wherein the weight ratio of the sum of the vinyl acetate moieties and vinylcaprolactam moieties to the polyalkylene glycol (e.g., side chains:graft base) is from about 1:2 to about 10:1.

8. The method according to claim 1 , wherein the graft copolymer is obtainable from:
i) 50 to 60 wt % N-vinylcaprolactam,
ii) 25 to 35 wt % vinyl acetate, and
iii) 10 to 20 wt % of the polyalkylene glycol,
with the proviso that the sum of components i), ii), and iii) is equal to about 100 wt %.

9. The method according to claim 1 , wherein the graft copolymer comprises about 13 wt % polyethylene glycol having MW 6000, about 57 wt % N-vinylcaprolactam, and about 30 wt % vinyl acetate.

10. The method according to claim 1 , wherein the benefit agent is present in an amount of from about 0.01% to about 5%, by weight of the composition.

11. The method according to claim 1 , wherein the benefit agent is selected from the group consisting of perfume raw materials, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, lipids, skin coolants, vitamins, sunscreens, antioxidants, glycerine, catalysts, bleach particles, silicon dioxide particles, malodor reducing agents, odor-controlling materials, chelating agents, antistatic agents, softening agents, insect and moth repelling agents, colorants, antioxidants, chelants, bodying agents, drape and form control agents, smoothness agents, wrinkle control agents, sanitization agents, disinfecting agents, germ control agents, mold control agents, mildew control agents, antiviral agents, drying agents, stain resistance agents, soil release agents, fabric refreshing agents and freshness extending agents, chlorine bleach odor control agents, dye fixatives, dye transfer inhibitors, color maintenance agents, optical brighteners, color restoration/rejuvenation agents, anti-fading agents, whiteness enhancers, anti-abrasion agents, wear resistance agents, fabric integrity agents, anti-wear agents, anti-pilling agents, defoamers, anti-foaming agents, UV protection agents for fabrics and skin, sun fade inhibitors, anti-allergenic agents, enzymes, water proofing agents, fabric comfort agents, shrinkage resistance agents, stretch resistance agents, stretch recovery agents, skin care agents, glycerin, natural actives, aloe vera, vitamin E, shea butter, cocoa butter, brighteners, antibacterial actives, antiperspirant actives, cationic polymers, dyes, hueing dyes, skin heath agents, skin restoration agents, anti-skin-aging agents, facial contrast agents, anti-dandruff agents, skin lightening agents, anti-acne agents, emollients, non-steroidal anti-inflammatory agents, topical anaesthetics, artificial tanning agents, anti-microbial and anti-fungal actives, skin soothing agents, skin barrier repair agents, anti-skin atrophy actives, lipids, sebum inhibitors, sebum inhibitors, skin sensates, protease inhibitors, anti-itch agents, desquamation enzyme enhancers, anti-glycation agents, and mixtures thereof.

12. The method according to claim 1 , wherein the benefit agent is selected from the group comprises perfume raw materials.

13. The method according to claim 12 , wherein the perfume raw materials comprise materials selected from Quadrant III perfume raw materials, Quadrant IV perfume raw materials, or mixtures thereof,
and optionally:
wherein the liquid consumer product composition comprises at least 60%, by weight of the composition, of water, and/or less than 10%, by weight of the composition, of surfactant.

14. The method according to claim 1 , wherein the benefit agent comprises enzymes.

15. The method according to claim 1 , wherein the composition is encapsulated in a water-soluble film.

16. The method according to claim 1 , wherein the consumer product adjunct is selected from an amine, a surfactant system, a water-binding agent, a sulfite, fatty acids and/or salts thereof, enzymes, encapsulated benefit agents, soil release polymers, hueing agents, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzyme stabilizers, catalytic materials, bleaching agents, bleach catalysts, bleach activators, polymeric dispersing agents, soil removal/anti-redeposition agents, polymeric dispersing agents, polymeric grease cleaning agents, brighteners, suds suppressors, dyes, hueing agents, free perfume, structure elasticizing agents, fabric softening agents, carriers, fillers, hydrotropes, organic solvents, anti-microbial agents and/or preservatives, neutralizers and/or pH adjusting agents, processing aids, fillers, rheology modifiers or structurants, opacifiers, pearlescent agents, pigments, anti-corrosion and/or anti-tarnishing agents, and mixtures thereof.

17. The method according to claim 1 , wherein consumer product adjunct comprises a surfactant system, fabric softeners, or combinations thereof.

Assignees

• Procter & Gamble

Inventors

• Hulskotter Frank
• Smets Johan
• Tahon Cédric Marc
• Fernandez Prieto Susana
• Bodet Jean-Francois
• Mamusa Marianna
• Baglioni Piero

Classifications

• C11D3/3788 Primary

  Graft polymers · CPC title

• C11D3/386

  Preparations containing enzymes {, e.g. protease or amylase} · CPC title

• C11D11/0094

  Process for making liquid detergent compositions, e.g. slurries, pastes or gels · CPC title

• C11D3/0015

  liquid · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title