Polycondensates having carboxylic or carbonic ester groups in the main chain

Introduced: July 1974

Full Title

Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the compounds used containing active hydrogen > High-molecular-weight compounds > Polycondensates having carboxylic or carbonic ester groups in the main chain

CPC subdivides this area 6x more granularly than IPC with 10 additional codes.

10 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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C08G 18/4202 CPC only CPC only
C08G 18/4205 +2 CPC CPC only CPC only
C08G 18/4236 +1 CPC CPC only CPC only
C08G 18/4244 +3 CPC CPC only CPC only
C08G 18/4263 CPC only CPC only
C08G 18/4266 +4 CPC CPC only CPC only
C08G 18/4288 CPC only CPC only
C08G 18/4291 CPC only CPC only
C08G 18/4294 CPC only CPC only
C08G 18/4297 CPC only CPC only
C08G 18/44 Polycarbonates since 1974 IPC+CPC Available in IPC and CPC
C08G 18/46 having heteroatoms other than oxygen since 1974 +5 CPC IPC+CPC Available in IPC and CPC