Patent Yard Sign in
Expired Canadian patentCanada

Process for the preparation of polyalphaolefine fibrids obtained thereby

CA 1049196 A · Owner: Snamprogetti S.P.A. · Inventors: Borri, Carlo; Della Fortuna, Giorgio; Baradel, Agostino

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention relates to a process for the production of polymeric products in the from of fibrids comprising polymeri-, zing at least one compound containing at least one olefinic unsaturation in the presence of a catalytic system comprising a reducing aluminium compound and a compound of a transition metal selected from the groups IV and VIII of the Periodic System the, aluminium compound being selected either among organometallic compounds having the general formula Al RxX3-x wherein R is an aryl, alkyl or cycloalkyl radical, X is a hydrocarbon radical or hydrogen, x is a whole or fractional number between 0 and 3 or among polymeric compounds of polyiminic nature containing repeating …

Read the whole patent

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 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 20, 1979
Term endedFebruary 20, 1996
Patent numberCA 1049196 A
Classification (IPC)C08F10/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 20, 1979Term endedFeb 20, 1996

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.