Dosage element and a method of manufacturing a dosage element

Patent metadata

Field	Value
Publication number	US-10294446-B2
Application number	US-201514657230-A
Country	US
Kind code	B2
Filing date	Mar 13, 2015
Priority date	Jan 18, 2007
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A dosage element to be consumed in use in a ware washing machine, the dosage element including a container, whereby the container encloses a non-consolidated particulate composition and a gel in direct contact with one another.

First claim

What is claimed is:

1. A method of manufacturing a ware washing unit dosage element having one compartment comprising the steps of:
(a) introducing a gel precursor composition into a water-soluble receptacle, wherein the gel precursor composition consists of 10-60 wt % of a non-ionic surfactant, and 10-60 wt % of a polyethylene glycol having a molecular weight in the range of 150-600 with the balance being a bleach activator, and optionally 0.1-8.0 wt % of polyethylene glycol having a molecular weight in the range of 1,000-35,000, water, a dye, and/or a builder;
(b) converting the gel precursor composition, or allowing the gel precursor composition to convert, into a shape-stable gel; and
(c) introducing a flowable particulate composition into the receptacle adjacent and in direct contact with the shape-stable gel such that the shape-stable gel and the flowable particulate composition do not substantially seep into each other;
wherein the method does not comprise consolidating the flowable particulate composition.

2. The method of claim 1 , wherein the water content of the shape-stable gel is less than 10 wt % water.

3. The method of claim 2 , wherein the water content of the shape-stable gel is less than 5 wt % water.

4. The method of claim 3 , wherein the water content of the shape-stable gel is less than 2 wt % water.

5. The method of claim 1 , wherein the density of the shape-stable gel is between 0.7 g/cm 3 and 2.0 g/cm 3 .

6. The method of claim 1 , wherein the flowable particulate composition comprises a bleach and/or an enzyme.

7. The method of claim 1 , wherein the gel precursor composition is introduced into the receptacle at an elevated temperature and cools to form the shape-stable gel.

8. The method of claim 1 , which does not comprise compacting the flowable particulate composition.

9. The method of claim 1 , wherein the shape-stable gel forms a layer at the bottom of the receptacle, and the flowable particulate composition forms a layer on top of the shape-stable gel.

10. The method of claim 1 , wherein the ratio by weight of the flowable particulate composition to the shape-stable gel is in the range of 1:1 to 20:1.

11. The method of claim 1 , further comprising introducing a pill or core of material into the receptacle.

12. The method of claim 11 , wherein the introducing the pill or core of material into the receptacle occurs before, or at the same time as, the introducing the gel precursor composition into the receptacle.

13. The method of claim 11 , wherein the introducing the pill or core of material into the receptacle locates the pill or core of material such that the gel precursor composition forms a barrier between the pill or core of material and the flowable particulate composition.

14. A dosage element manufactured by the method of claim 1 .

Assignees

• Reckitt Benckiser Nv
• Reckitt Benckiser Finish Bv

Inventors

• Wiedemann Ralf
• Roy Pavlinka
• Moreux Frederic

Classifications

• C11D17/043 Primary

  Liquid or thixotropic (gel) compositions · CPC title

• C11D11/00

  Special methods for preparing compositions containing mixtures of detergents · CPC title

• C11D11/0017

  Chemistry & Metallurgy · mapped topic

• C11D17/0047

  Detergents in the form of bars or tablets · CPC title

• C11D11/0023

  Chemistry & Metallurgy · mapped topic