DIFF Subgroup
C08G 18/20 Heterocyclic amines; Salts thereof
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Processes > Catalysts > containing secondary or tertiary amines or salts thereof > Heterocyclic amines; Salts thereof
CPC:
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Processes > Catalysts (catalysts in general B01J) > containing secondary or tertiary amines or salts thereof > Heterocyclic amines; Salts thereof
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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