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Expired Canadian patentCanada

Piperidyl-triazine derivatives

CA 1088058 A · Owner: Chimosa Chimica Organica S.P.A. · Inventors: Cassandrini, Paolo; Tozzi, Antonio

CIPO record

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

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Abstract From the Canadian patent

Novel piperidyl triazine derivatives are produced by reacting a substituted halogentriazine with a polyalcohol, a polymercaptan or a polyamine. The compounds are valuable light stabilizers for synthetic polymers, such as polyolefins, and fast to extraction in aqueous surfactant solutions.

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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 October 21, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 24, 1976
GrantedOctober 21, 1980
Term endedOctober 21, 1997
Patent numberCA 1088058 A
Classification (IPC)C07D251/26 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedJune 24, 1976Patent grantedOct 21, 1980Term endedOct 21, 1997

Sources & verification

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