Difluoroamino-pentafluorothioethanes
CA 1085875 A · Owner: Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of National Defence · Inventors: Boivin, Jean L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Pentafluorothio-difluoroamine reacts with ethylenic alkyl unsaturated lower aliphatic compounds to yield difluoroamino-pentafluorothioalkane addition products containing NF2 and SF5 groups. The reaction proceeds according to the following scheme:, In this equation R1 R2, R3 and R4 are radicals selected from the group consisting of hydrogen, lower alkyl nitro, halogen, nitrile, carbonyl and carbethoxy. Since the product contains both NF2 and SF5 groups, it is a high energy compound suitable, for use as a rocket fuel.
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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1997.
- 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.