Self-complexing galactomannan gums
CA 1102504 A · Owner: Henkel Corporation · Inventors: Nordgren, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Self-complexing galactomannan gum blends which exhibit delayed gelling at acidic pH levels have increased utility in the manufacture of packaged, gelled explosive slurries by providing favorable cross-linking and gelling time rates by use of an oxidising agent for trivalent antimony salts which is selected from alkali metal periodates and permanganates.
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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.