Process for preparing a low TFM detergent bar composition
US6207636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D13/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low total fatty matter content detergent bar composition comprising a surfactant 25-70% total fatty matter, 9-16% by weight colloidal aluminium hydroxide and 12-52% water. The invention also comprises a process for preparing a detergent bar comprising a surfactant, 25-70% total fatty matter, 0.5-20% colloidal aluminium hydroxide and 15-52% water, comprising the steps of reacting one or more fatty acids or fats with sodium aluminate with a solid content of 20-55% wherein the Al.sub.2 O.sub.3 to Na.sub.2 O ratio is in the region 0.5-1.55:1 to obtain a mixture of aluminium hydroxide and soap at a temperature of between 40.degree. C. and 95.degree. C., adding a predetermined amount of water to the mixture of aluminium hydroxide and soap, adding any further minor additives, and converting the product into bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.