Extruded soap bar with high water content

Patent metadata

Field	Value
Publication number	US-11352594-B2
Application number	US-202017425115-A
Country	US
Kind code	B2
Filing date	Jan 27, 2020
Priority date	Feb 19, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

The present invention relates to an extruded soap bar composition. It more particularly relates to a soap bar composition which comprises low amount of soap where high amount of water can be incorporated. This is achieved by including selective amount of a mixture of sodium or calcium silicate and an acrylic/acrylate polymer, wherein the soap bar comprises 0.01 to 0.7 wt % of the polymer. The soap bars of the invention are easy to extrude and has acceptable product hardness.

First claim

The invention claimed is:

1. An extruded soap bar comprising:
(i) 40 to 60 wt % total fatty matter;
(ii) 21 to 40 wt % water;
(iii) 0.5 to 5 wt % electrolyte; and
(iv) 0.1 to 10 wt % of a structuring system comprising a mixture of sodium silicate and an acrylic/acrylate polymer, wherein said soap bar comprises 0.01 to 0.7 wt % of said polymer, wherein said soap bar comprises 0.5 to 3 wt % sodium silicate.

2. The soap bar as claimed in claim 1 , comprising 45 to 55 wt % total fatty matter.

3. The soap bar as claimed in claim 1 , comprising 25 to 40 wt % water.

4. The soap bar as claimed in claim 1 , comprising 0.5 to 3 wt % electrolyte.

5. The soap bar as claimed in claim 1 , wherein said electrolyte is selected from sodium chloride, sodium sulphate, sodium citrate or a mixture thereof.

6. The soap bar as claimed in claim 1 , comprising sodium silicate.

7. The soap bar as claimed in claim 1 , wherein said polymer is a hydrophobically modified, a homo polymer, a copolymer, or a cross polymer.

8. A process to prepare a soap bar as claimed in claim 1 , comprising the step of including the polymer during the step of saponification to form the soap.

9. The soap bar as claimed in claim 7 , wherein the sodium silicate is alkaline sodium silicate with a Na 2 O:SiO 2 weight ratio of about 1:2.

10. The soap bar as claimed in claim 7 , wherein the polymer is an acrylic polymer, a partially neutralized acrylic polymer, or an acrylate polymer.

Assignees

• Conopco Inc

Inventors

• Bankar Pravin
• Murthy Kamsu Venkata Satyanarayana
• Sethna Simone

Classifications

• C11D9/225

  Polymers · CPC title

• C11D9/10

  Salts · CPC title

• C11D7/14

  Silicates · CPC title

• C11D9/18 Primary

  Water-insoluble compounds · CPC title

• C11D17/0047

  Detergents in the form of bars or tablets · CPC title