Preparation of saturated primary amines
CA 1231976 A · Owner: Pennwalt Corporation · Inventors: Duffner, Paul; Frank, Gerhard; Neubauer, Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
13 - O.Z.0050/36947, Abstract of the Disclosure: Saturated primary amines are prepared by reacting a nitrile with hydrogen at elevated temperatures and under superatmospheric pressure in the presence of ammonia by a process in which a molded catalyst material as used which has an indentation hardness of >300 kp/cm2 and contains metallic cobalt and/or nickel particles, obtained from cobalt oxide and/or nickel oxide particles containing less than 0.1% by weight of alkali metal oxides and/or alkaline earth metal oxides by reduction with hydrogen at <500°C, and a lubricant.
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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 January 26, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.