Nitration of woodpulp
USH764H · kind H · statutory invention registration
0Cited by
0References
4Claims
0Family size
Inventor
Key dates
| Filing date | — |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | — |
Classification
- Technology area (CPC —)General
Abstract
The improvement of providing a shearing force to bundles of woodpulp to physically break apart the same into component parts simultaneously with nitration of said woodpulp in a tank containing nitric acid, sulfuric acid, and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.