A1c13-catalyzed process for preparing poly-n-butenes from mixed butenes
CA 1340474 C · Owner: Chen, Frank Joung-Yei · Inventors: Chen, Frank Joung-Yei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Poly-n-butene is prepared from a mixed C4 hydrocarbon feedstream containing less than about 5 wt.% isobutylene using an AlC13-HC1 catalyst system wherein the HC1 is introduced separately into the feedstream to form organochloride in the feedstream. Polymer product having a very narrow molecular weight distribution is obtained over the M n range of 300 to 900.
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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 March 30, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2016.
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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.