Process for the production of deuterated acrylic acid or deuterated methacrylic acid
CA 1265814 C · Owner: Uno, Tetsuya · Inventors: Kobayashi, Masao; Kato, Masaaki; Osuga, Naoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with the present invention there, is provided a process for the production of deuterated acrylic acid or deuterated methacrylic acid comprising the exchange of hydrogens in acrylic acid or methacrylic acid with deuteriums in the presence of a catalyst. The deuterated acrylic or methacrylic acid is very useful as a starting material in the production of high quality optical plastic fibers.
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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 February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 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
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.