# US 10,308,902 B2 · Microencapsulation of detergent components

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- Number: US 10,308,902 B2
- Document ID: US10308902B2
- Status: Granted
- Kind: B2
- Application number: 15/306,606
- Filed: 2015-04-30
- Published: 2017-02-16
- Granted: 2019-06-04
- Earliest claimed: 2014-10-31
- Assignees: Novozymes A/S
- Applicants: Novozymes A/S
- Inventors: Amra Tihic Rasmussen; Kim Bruno Andersen; Katarina Larson; Lotte Elisabeth Nissen; Martin Noerby; Ole Simonsen; Tue Rasmussen
- Web page: https://patentgrep.com/patent/US10308902B2

## CPC

- C11D 17/0039: {Coated compositions or coated components in the compositions, (micro)capsules}
- C11D 3/3723: {Polyamines or polyalkyleneimines}
- C11D 2111/12: Soft surfaces, e.g. textile
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The present invention provides a microcapsule composition produced by crosslinking of a polybranched polyamine, which is used for stabilizing non-enzymatic detergent components.

## Claims

### Claim 1

A substantially non-enzymatic microcapsule composition, comprising a detergent component entrapped in a compartment formed by a membrane, which membrane is produced by cross-linking of a polybranched polyamine having a molecular weight of more than 800 Da.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the detergent component is reactive or incompatible with another detergent component.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the detergent component is reactive or incompatible with a detergent enzyme.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the reactive amino groups of the polybranched polyamine constitute at least 15% of the molecular weight.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the diameter of the compartment is at least 50 micrometers.

### Claim 6 (depends on 1)

The composition of claim 1, which further includes an alcohol, such as a polyol.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the polybranched polyamine has a molecular weight of at least 1 kDa.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the polybranched polyamine is a polyethyleneimine.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the compartment comprises a source of Mg2+, Ca2+, or Zn2+ ions.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the membrane is produced by using an acid chloride as crosslinking agent.

### Claim 11 (depends on 1)

The composition of claim 1, wherein the membrane is produced by interfacial polymerization.

### Claim 12 (depends on 1)

A liquid detergent composition, comprising a surfactant and/or a detergent builder, and the microcapsule composition of claim 1.

### Claim 13 (depends on 12)

The composition of claim 12, which comprises a first component and a second component which are mutually incompatible or reactive, and wherein the first component is entrapped in the compartment of the microcapsule, and the second component is not entrapped in the compartment of the microcapsule.

### Claim 14 (depends on 13)

The composition of claim 13, wherein the second component is an enzyme.