Shear thickening of organic diluents via interpolymer complexes
CA 1267277 C · Owner: Eckert, John A. · Inventors: Duvdevani, Ilan; Phillips, Robert R.; Lundberg, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for forming a shear thickening hydrocarbon liquid having a viscosity of at least about 10 cps. which includes the steps of:, (a) forming a first solution of an organic hydrocarbon liquid and a neutralized sulfonated polymer having a sulfonated content of from about 4 to about 200 milliequivalents per 100 gms. of said polymer; (b) forming a second solution of an organic hydrocarbon liquid and an amine containing polymer which contains basic nitrogen atoms wherein the basic nitrogen content ranges from about 4 to about 500 milliequivalents per 100 gms. of polymer; (c) mixing said first and second of said solutions to form an organic hydrocarbon liquid having an interpolymer complex …
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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 April 3, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2007.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.