CH545830ACH1598270ACH545830DACH545830ACH 545830 ACH545830 ACH 545830ACH 1598270 ACH1598270 ACH 1598270ACH 545830D ACH545830D ACH 545830DACH 545830 ACH545830 ACH 545830A
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CH
Switzerland
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CH1598270A
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Publication of CH545830ApublicationCriticalpatent/CH545830A/xx
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G73/00—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
C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule