Bar with good user properties comprising acid-soap complex as structurant and low levels of synthetic
US6849585B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2004 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Jan 13, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to soap/free fatty acid bars in which high amounts of free fatty acid (i.e., greater than 35%, preferably greater than 40% and ratio of FFA to soap greater than 1:1) and low levels of synthetic may be used. In the bar, the free fatty acid is believed to form a complex which is believed to act as a structurant, thereby allowing less use of synthetic surfactant. The bar should require less synthetic surfactant. Total amount of unsaturated material in soap and fatty acid should be no higher than 15%In a second embodiment of the invention, the bar may be made by a neutralization process whereby fatty acid is combined with caustic (e.g., lower than 50% caustic) to form soap and free fatty acid in defined amounts or proportions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.