Method for degreasing natural skins, hides and pelts
US4572721A · kind A · utility
2Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Jun 8, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC14C1/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Skins, hides and pelts are effectively degreased under mild conditions prior to tanning, in the presence of an organic primary, secondary or tertiary amine having surface-active properties and containing at least one lipophilic residue and at least one ethylene oxide unit, optionally in admixture with a non-ionic emulsifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.