Thermolysis of styrene oxide
CA 1051927 A · Owner: Cosden Oil And Chemical Company · Inventors: Watson, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Styrene oxide is heated under relatively mild temperature conditions to cause thermolysis. Such thermolysis produces substantial quantities of phenylacetaldehyde in the reaction product. Substantially pure phenylacetaldehyde may be recovered from the crude reaction product by distillation procedure, or other separation means, or if desired, the, phenylacetaldehyde may be directly converted in the crude reaction product to produce its acetals. The process of thermolysis of styrene oxide may be conducted with the styrene oxide in liquid phase, in vapor phase, or in solution within an inert solvent. The conditions of reaction are maintained to achieve a mild decomposition, described as …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.