IPC Subgroup
C08B 17/04 for making cellulose nitrate
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus for esterification or etherification of cellulose > for making cellulose nitrate
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- Subclass:
- POLYSACCHARIDES; DERIVATIVES THEREOF