Hydroformylation process
CA 1295342 C · Owner: Yoshimura, Noriaki · Inventors: Omatsu, Toshihiro; Yoshimura, Noriaki; Tokitoh, Yasuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydroformylation process is provided which comprises reacting a compound of the general formula CH2=CH-CH2-A-CH2-X, wherein X is a hydroxyl or formyl group and A is a group of the formula, -(CH2)n- or -(CH2)m-CH=CHin which n is an integer of 3-8 and m is an integer of 0-5, with a mixture of hydrogen and carbon monoxide in the presence of a rhodium compound and a specific tris(substituted phenyl) phosphite
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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 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.