Preparation of detergent bars containing zinc oxide
US4094807A · kind A · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1977 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | Jun 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D9/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method of incorporating zinc oxide into a detergent bar. In order to avoid grittiness in the bar the zinc oxide is slurried in an aqueous or organic liquid before it is added to the detergent material. Preferably the zinc oxide used has a particle size distribution such that not more than about 5% by weight of the oxide is held on a 10 micron sieve and not more than about 3% by weight is held on a 30 micron sieve. The invention is particularly applicable to the production of superfatted bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.