CPC Subgroup
C01B 32/168 After-treatment
Full Title
Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48) > Nano-sized carbon materials > Carbon nanotubes > After-treatment
5 direct subcodes
Child Classifications
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- C01B 32/17 Purification
- C01B 32/172 Sorting
- C01B 32/174 Derivatisation; Solubilisation; Dispersion in solvents
- C01B 32/176 Cutting
- C01B 32/178 Opening; Filling