Alpha-halogeno-beta-aminopropionitriles or the mineral acide salts thereof, and processes for production thereof
CA 1134862 A · Owner: Mitsui Toatsu Chemicals, Inc. · Inventors: Higuchi, Chojiro; Mita, Ryuichi; Yamaguchi, Akihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to processes for producing alpha-halogenobeta-aminopropionitriles and the mineral acid salts thereof. More specifically, this invention relates to a process for producing an alpha-halogenobeta-aminopropionitrile which comprises reacting an alpha beta-dihalogeno-, propionitrile with ammonia in water and/or an organic solvent and to a, process for producing a mineral acid salt of an alpha-halogeno-beta-aminopropionitrile by the action of a mineral acid on the alpha-halogeno-betaaminopropionitrile.
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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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- 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.