Thickened aqueous slurry explosive compositions
CA 1071875 A · Owner: Canadian Industries Limited · Inventors: Craig, Joseph F.M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A thickened aqueous slurry explosive composition, containing a soluble organic nitrate sensitizer is provided which has improved rheological properties Use in the com-, position as a thickener of a mixture of an unmodified guar, gum and a hydroxypropyl-modified guar gum provides a composition which retains flowability for an hour or more for easy extrusion packaging yet achieves a high level of gel strength and cartridge rigidity within a day after packaging.
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 February 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 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.