DIFF Subgroup
C08G 69/48 Polymers modified by chemical after-treatment
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule > Polymers modified by chemical after-treatment
CPC:
Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule (products obtained from isocyanates or isothiocyanates C08G18/00; polyamide-imides C08G73/14) > Polymers modified by chemical after-treatment
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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