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US 4,255,453 AGranted
Production of isocyanic acid and isocyanates
OwnerRobert K. Jordaninventor
Life of this patent
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Abstract
A process for the production of isocyanates by the addition of carbon monoxide to a metal or aryl carbamate.
Claims6
A process for the production of isocyanates and homopolymers thereof comprising combining a metal N-mono organic substituted carbamate and carbon monoxide.
A process for the production of isocyanaic acid and homopolymers thereof comprising combining a metal salt of carbamic acid and carbon monoxide.
A process for the production of isocyanates and homopolymers thereof comprising combining an ester of carbamic or an N-mono organic substituted carbamic acid and carbon monoxide.
Dependencies are inferred from the claim text.