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Expired Canadian patentCanada

1,2,2,6,6-pentamethyl-4-piperidylaminotriazine derivatives and their use as stabilizers

CA 1304368 C · Owner: Gugumus, Francois · Inventors: Gugumus, Francois; Cantatore, Giuseppe

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Abstract From the Canadian patent

21489-7243, - 1 -, 3-16119/+/CHM 26, 1,2,2,6,6-Pentamethyl-4-piperidylaminotriazine derivatives and their use as stabilizers, Abstract of the Disclosure Compounds of the formula (I), (I), wherein R1 and R5 are independently hydrogen C1-C12-alkyl, C5-C7-cyclo-, alkyl or a group of the formula (II) (II), R2, R3 and R4 are independently C2-C12-alkylene R is a group of the, formula (III), (III) wherein R6 is C2-C8-dialkylamino, C1-C4-alkoxy pyrrolidinyl, piperidino, morpholino, hexahydroazepinyl or a group of the formula (IV) (IV), R7 and R8 are independently C1-C12-alkyl C5-C7-cycloalkyl, benzyl, or a group of the formula (II) subject to the proviso that both, R1, and R5 are different from …

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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 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.
FiledAugust 21, 1987
GrantedJune 30, 1992
Term endedJune 30, 2009
Patent numberCA 1304368 C
Classification (IPC)C07D401/14 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedAug 21, 1987Patent grantedJune 30, 1992Term endedJune 30, 2009

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