Liquid soap with vitamin beads and method for making same

• US 6,846,785 B2
• Filed: 07/31/2002
• Issued: 01/25/2005
• Est. Priority Date: 07/31/2002
• Status: Expired due to Fees

• Current Assignee: Dial Corporation (Henkel AG & Co KGaA)
• Original Assignee: Dial Corporation (Henkel AG & Co KGaA)
• Inventors: Patel, Jayesh A.
• Primary Examiner(s): Ogden, Necholus
• Application Number:
  US10/210,105
• Publication Number:
  US 20040023820A1
• Time in Patent Office: 909 Days
• Field of Search: 510/130, 510/159, 510/429, 510/425, 510/426, 510/476, 510/477, 510/490
• US Class Current: 510/130
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/51 Chelating agents
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• CPC Class Codes: A61K 8/463 containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• CPC Class Codes: A61K 8/67 Vitamins
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/08 Liquid soap, e.g. for dispensers; capsuled
• CPC Class Codes: C11D 3/3765 in liquid compositions
• CPC Class Codes: C11D 3/382 Vegetable products, e.g. soya meal, wood flour, sawdust

Abstract

A liquid soap having vitamin-containing microcapsules including a base having an anionic surfactant and a chelating agent, a cross-linked acrylic polymer suspending agent, and multiple vitamin-containing microcapsules uniformly suspended in the liquid soap. The liquid soap is formulated at an elevated temperature which is maintained throughout the formulation process.

Claims

1. A liquid soap comprising:

about 65 to about 75 weight % of a liquid base;

about 0.1 to about 2.1 weight % of microcapsules; and

about 20 to about 25 weight % of a suspending agent comprising a cross-linked acrylic polymer and water;

wherein during formulation the liquid base is maintained at a temperature between about 35 to 40 degrees C. during addition of all other ingredients including the microcapsules and the suspending agent.

2. The liquid soap of claim 1 wherein the liquid base comprises an anionic surfactant and a chelating agent.

3. The liquid soap of claim 2 wherein the liquid base further comprises at least one of a humectant, a preservative, and a vitamin.

4. The liquid soap of claim 1 further comprising at least one of an antibacterial, a fragrance, a nonionic surfactant, an antioxidant, an amphoteric surfactant, a colorant, and a neutralizer.

5. The liquid soap of claim 1 wherein the microcapsules contain at least one of Vitamin A and Vitamin E.

6. The liquid soap of claim 1 wherein said microcapsules have a size within a range of about 700 to 1200 microns.

7. The liquid soap of claim 1 wherein the suspending agent comprises an alkali-swellable acrylic emulsion polymer.

8. The liquid soap of claim 3 wherein the liquid base comprises:

about 20 to 40 weight % of a diluent;

about 1 to 40 weight % of an anionic surfactant;

about 0.1 to 5 weight % of a humectant;

about 0.01 to 1.0 weight % of a chelating agent;

about 0.1 to 1.0 weight % of a preservative; and

about 0.1 to 1.0 weight % of a vitamin.

9. The liquid soap of claim 4 wherein said amphoteric surfactant comprises about 1.0 to 10.0 weight % of said liquid soap.