Method in the production of crystalline explosives
CA 1296723 C · Owner: Ericsson, Per · Inventors: Bergstrom, Bertil; Olsson, Nils-Ingvar; Ericsson, Per
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A method of initiating a crystal growth prior to, filtering off, from the mother liquor in which they were produced of crystalline explosives, such as hexogen and octogen produced, by so-called Bachmann process or variations of this process. According to the invention the mother liquor is, after the end of the chemical reaction proper, subjected to a pressure-heat treatment which initiates the partial dissolution of the crystalline explosives obtained in the process giving rise, after, cooling of the mother liquor to larger crystals which may more, readily be filtered off. According to a further improvement of the invention a relatively pure octogen may be extracted from the mother liquor …
Read the whole patent
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.
Why it's free to use
- Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.