Triggered release system

Patent metadata

Field	Value
Publication number	US-10557108-B2
Application number	US-93487709-A
Country	US
Kind code	B2
Filing date	Mar 25, 2009
Priority date	Mar 28, 2008
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

The combination of an enzyme substrate and an enzyme capable of accelerating the modification of said substrate, provides a triggered release system which works especially well. The use of the enzyme-triggered release system can retain a rinse benefit agent during the wash stage and release it during the subsequent rinse stage.

First claim

The invention claimed is:

1. A particle for triggered release of a rinse benefit agent, said particle comprising:
a) a first enzyme,
b) a rinse benefit agent selected from the group consisting of perfumes, encapsulated perfumes, masking agents, chemical malodor neutralizers, physical malodor neutralizers, pro-fragrances, fiber lubricants, anti-static agents, anti-wrinkle agents, antifoam, photo-protective agents, optical brighteners, soil release polymers, soil repelling agents, stain repellent agents, fabric softening compounds, anti-microbial agents, insecticides, fungicides, insect repellents, moisture management agents, shading dyes, dye fixing agents, a second enzyme and mixtures thereof, and
c) a water-insoluble substrate for said first enzyme,

wherein the rinse benefit agent and the first enzyme are surrounded by a barrier layer comprising a water-insoluble continuous layer comprising the substrate,
and wherein the mean particle size is in the range of 0.1 to 2000 μm.

2. The particle of claim 1 , wherein the first enzyme which acts on the substrate is selected from the group consisting of amylases, lipases, cellulases, cutinases and mixtures thereof.

3. The particle of claim 1 , wherein the water-insoluble substrate is selected from the group consisting of monoglycerides, diglycerides, triglycerides, wax esters and mixtures thereof.

4. The particle of claim 1 , wherein the particle comprises a core containing the rinse benefit agent and a layer comprising the substrate surrounding the core.

5. The particle of claim 4 , wherein the core further comprises a carrier particle.

6. The particle of claim 1 , wherein the rinse benefit agent, the substrate and the first enzyme are present together.

7. The particle of claim 1 , wherein the particle comprises a first layer comprising the rinse benefit agent and a second layer comprising the substrate.

8. A process for preparing a particle of claim 1 , comprising the steps of:
a) preparing a core comprising the benefit agent,
b) applying one or more layers,

wherein a layer comprises the first enzyme or the substrate for said first enzyme or both.

9. The process of claim 8 , where the particle is prepared in a mixer, a fluid bed, a fluid bed spray dryer, a spray dryer or an extruder.

10. A dishwash detergent composition comprising the particles of claim 1 .

11. A process for washing kitchenware, comprising a washing step wherein soiled kitchenware is contacted with an aqueous composition comprising the dishwash detergent composition of claim 10 , followed by a rinsing step wherein the rinse benefit agent is released from the particles into the rinse liquid.

12. The particle of claim 1 wherein the rinse agent is a perfume.

13. The particle of claim 1 wherein the rinse agent is a masking agent.

14. The particle of claim 1 wherein the rinse agent is a chemical malodor neutralizer.

15. The particle of claim 1 wherein the rinse agent is a physical malodor neutralizer.

16. The particle of claim 1 wherein the rinse agent is a pro-fragrance.

17. The particle of claim 1 wherein the rinse agent is a lubricant.

18. The particle of claim 1 wherein the rinse agent is an optical brightener.

19. The particle of claim 1 wherein the rinse agent is a fabric softener.

20. The particle of claim 1 , wherein the mean particle size is in the range of 50 to 1400 μm.

21. The particle of claim 1 , the mean particle size is in the range of 100 to 1000 μm.

Assignees

• Borup Flemming
• Callisen Thomas Hoenger
• Schnorr Kirk Matthew
• Simonsen Ole
• Wieth Christian
• Bonsall Judith Maria
• Chapple Andrew Paul
• Hackett Anthony
• Jones Christopher Clarkson
• Mealing David Richard Arthur
• Salkar Rajesh Amrit
• Novozymes As

Inventors

• Borup Flemming
• Callisen Thomas Hoenger
• Schnorr Kirk Matthew
• Simonsen Ole
• Wieth Christian
• Bonsall Judith Maria
• Chapple Andrew Paul
• Hackett Anthony
• Jones Christopher Clarkson
• Mealing David Richard Arthur
• Salkar Rajesh Amrit

Classifications

• C11D3/38672

  Granulated or coated enzymes · CPC title

• C11D17/0039 Primary

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