Stable, flowable silica capsule formulation

Patent metadata

Field	Value
Publication number	US-9763861-B2
Application number	US-201314057083-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Dec 4, 2008
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

A flowable, stable silica capsule formulation composed of a silica capsule suspension and an adjuvant for use in a personal care product, a beauty care product, a fabric care product, a home care product, a personal hygiene product, an oral care product is provided.

First claim

What is claimed is:

1. A flowable, stable silica capsule formulation comprising a silica capsule suspension and an adjuvant, wherein the flowable, stable silica capsule formulation is flowable and stable for 4 to 8 weeks without forming a cream, foam or gel, the silica capsule suspension contains cetyltrimethylammonium chloride and core-shell silica capsules encapsulating an active material, the active material is a fragrance oil, and the adjuvant, present at a level of 0.05% to 0.5% by weight of the capsule formulation, is a vinyl pyrrolidone/dimethyl-aminoethyl methacrylate copolymer.

2. The flowable, stable silica capsule formulation of claim 1 , wherein the active material is present at a level of 5% to 60% by weight of the capsule formulation.

3. The flowable, stable silica capsule formulation of claim 1 , wherein the vinyl pyrrolidone/dimethylaminoethyl methacrylate copolymer is Polyquaternium-11.

4. The flowable, stable silica capsule formulation of claim 1 , wherein the adjuvant is added to the silica capsule suspension during the preparation of the silica capsule suspension.

5. The flowable, stable silica capsule formulation of claim 1 , wherein the adjuvant is added to the silica capsule suspension after the preparation of the silica capsule suspension.

6. A personal care product comprising the flowable, stable silica capsule formulation of claim 1 .

7. The personal care product of claim 6 , wherein said product is an aerosol antiperspirant, stick antiperspirant, roll-on antiperspirant, emulsion spray antiperspirant, clear emulsion stick antiperspirant, soft solid antiperspirant, emulsion roll-on antiperspirant, clear emulsion stick antiperspirant, opaque emulsion stick antiperspirant, clear gel antiperspirant, clear stick deodorant or spray deodorant.

8. The personal care product of claim 6 , wherein said product is a shampoo, hair conditioner, hair rinse, hair refresher, body wash or soap.

9. A beauty care product comprising the flowable, stable silica capsule formulation of claim 1 .

10. The beauty care product of claim 9 , wherein said product is a fine fragrance or Eau De Toilette product.

11. A fabric care product comprising the flowable, stable silica capsule formulation of claim 1 .

12. The fabric care product of claim 11 , wherein said product is a rinse conditioner, liquid detergent or powder detergent.

13. A home care product comprising the flowable, stable silica capsule formulation of claim 1 .

14. The home care product of claim 13 , wherein said product is an all-purpose cleaner or fabric refresher.

15. A personal hygiene product comprising the flowable, stable silica capsule formulation of claim 1 .

16. The personal hygiene product of claim 15 , wherein the product is a hand sanitizer.

17. An oral care product comprising the flowable, stable silica capsule formulation of claim 1 .

18. The oral care product of claim 17 , wherein the product is a tooth powder.

Assignees

• Int Flavors & Fragrances Inc

Inventors

• Lei Yabin
• Xu Li
• Joyce Carol

Classifications

• C11D3/162

  containing Si · CPC title

• A61Q5/12

  Preparations containing hair conditioners · CPC title

• A61Q19/10

  Washing or bathing preparations · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title

• A61Q11/00

  Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses · CPC title