Process for polymerizing butene-1
CA 1279308 C · Owner: Nielsen, Robert Peter · Inventors: Nielsen, Robert Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst system for polymerizing butene-l comprising: a component (A) consisting of one or more dialkylaluminum hydride compounds having a total molar amount greater than 75 moles of said dialkylaluminum compound per mole of titanium; a component (B) consisting of an alkylaluminum halide having a total molar amount greater than 25 moles of said alkylaluminum halide per mole of titanium, and which at least in part, has been premixed, with component (D); a component (C) consisting of a selectivity control agent consisting of one or more aromatic esters in a total molar amount greater than 50 moles of ester per mole of titanium; and a component (D) consisting of a titanium halide and an …
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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 January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- 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.