Process for the preparation of secondary monomethylalkyl amines
CA 2060253 A1 · Owner: Akzo N.V. · Inventors: Carr, Eugene Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of a highly selective amount of secondary monomethylalkyl amine said process, comprising reacting, at elevated temperature and pressure a, hexahydrotriazine compound in the liquid state with hydrogen in the presence of a catalyst material having at least one catalytically active metal, said hexahydrotriazine compound having the formula, wherein R1, R2, and R3 are independently, straight or, branched, saturated or unsaturated linear or cyclic, hydrocarbon groups or straight or branched saturated or, unsaturated, linear or cyclic hydrocarbon groups wherein one or more CH2 groups are replaced by an oxygen atom or a tertiary amine group, provided that any …
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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
- Filed January 29, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2014.
- 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
Timeline From CIPO dates
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.