Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups > Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors > Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

CPC:

Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00 > Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule > Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors

CPC subdivides this area 5x more granularly than IPC with 11 additional codes.

11 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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C08G 73/1003 +2 CPC CPC only CPC only
C08G 73/1039 CPC only CPC only
C08G 73/1042 CPC only CPC only
C08G 73/1046 +2 CPC CPC only CPC only
C08G 73/1057 +2 CPC CPC only CPC only
C08G 73/1067 +1 CPC CPC only CPC only
C08G 73/1075 +2 CPC CPC only CPC only
C08G 73/1085 CPC only CPC only
C08G 73/1089 CPC only CPC only
C08G 73/1092 CPC only CPC only
C08G 73/1096 CPC only CPC only
C08G 73/12 Unsaturated polyimide precursors since 1974 +6 CPC IPC+CPC Available in IPC and CPC
C08G 73/14 Polyamide-imides since 1974 IPC+CPC Available in IPC and CPC
C08G 73/16 Polyester-imides since 1974 IPC+CPC Available in IPC and CPC