IPC Main Group
C08H 7/00 Lignin; Modified lignin; High-molecular-weight products derived therefrom
Introduced: September 1968
Last revised: January 2011
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- Subclass:
- DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
Related Keywords
LIGNIN; modified Lignin; high-molecular-weight products derived therefrom