Process for encapsulating radioactive organic liquids in a resin
CA 1205993 A · Owner: The Dow Chemical Company · Inventors: Drake, Stevens S.; Filter, Harold E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a process for encapsulating low level radioactive liquid waterinsoluble organic wastes into a solid form suitable for burial. The process is characterized by contacting one part by weight of said waste with less than one part by weight of a particulate, crosslinked, organic liquid- -swellable, organic liquid-insoluble polymer to provide discrete, noncoalescent, gelled particles of said polymer and said waste; dispersing from 0.1 to 3 parts by weight of said gelled particles essentially uniformly in one part by weight of a curable liquid resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, or mixtures thereof and curing …
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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 June 17, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 2003.
- 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.