Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule

Introduced: July 1974

Title

Titles differ between systems:

IPC: Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors

CPC: Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule

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

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

Of 9 combined children, 5 exist in both systems.

4 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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C08G 73/0605 +2 CPC CPC only CPC only
C08G 73/0622 +3 CPC CPC only CPC only
C08G 73/0666 +2 CPC CPC only CPC only
C08G 73/0683 +2 CPC CPC only CPC only
C08G 73/08 Polyhydrazides; Polytriazoles; Polyaminotriazoles; Polyoxadiazoles since 1974 IPC+CPC Available in IPC and CPC
C08G 73/10 Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors since 1974 +11 CPC IPC+CPC Available in IPC and CPC
C08G 73/18 Polybenzimidazoles since 1974 IPC+CPC Available in IPC and CPC
C08G 73/20 Pyrrones since 1974 IPC+CPC Available in IPC and CPC
C08G 73/22 Polybenzoxazoles since 1974 IPC+CPC Available in IPC and CPC