Leather tanning composition and method
US4285689A · kind A · utility
5Cited by
9References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Jun 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC14C3/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A leather tanning composition comprises a sufficient amount of the reaction product of a polyaldehydic compound and a secondary amine to increase the shrinkage temperature of a hide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.