Catalysts (catalysts in general B01J)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Catalysts

CPC: Catalysts (catalysts in general B01J)

Full titles differ between systems:

IPC:

Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Processes > Catalysts

CPC:

Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Processes > Catalysts (catalysts in general B01J)

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1974.

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C08G 18/161 +1 CPC CPC only CPC only
C08G 18/166 +1 CPC CPC only CPC only
C08G 18/18 containing secondary or tertiary amines or salts thereof since 1974 +11 CPC IPC+CPC Available in IPC and CPC
C08G 18/22 containing metal compounds since 1974 +3 CPC IPC+CPC Available in IPC and CPC