4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Heterocyclic carbon compounds containing a hetero ring...

Pyong N. Son

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2-Keto-1,4-diazacycloalkanes

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent

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2-Keto-diazacycloalkane-urethane oligomers and U-V light stabili

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent

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Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-tr

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent

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Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-tr

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent

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Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-tr

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
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