Piperidine-triazine compounds for use as stabilizers for organic materials
CA 2029576 A1 · Owner: Borzatta, Valerio · Inventors: Borzatta, Valerio; Cantatore, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
CA-A-17829/=/CHM 47, Piperidine-triazine compounds for use as stabilizers for organic materials Abstract of the disclosure, The present invention relates to novel piperidine-triazine compounds of the general formula (I), (I), in which R1 is e.g. methyl acetyl or (C1-C2alkoxy)carbonyl, A is e.g. a group of the formula (IIa), (IIa), in which R3 is e.g. hydrogen methyl, 2,2,6,6-tetramethyl-4-piperidyl 1,2,2,6,6-, pentamethyl-4-piperidyl or 1-acetyl-2,2,6,6-tetramethyl-4-piperidyl R4 is e.g. C3-C6alkylene, R2 is e.g. a group R1-A- and n is e.g. a number from 1 to 5. The said compounds are effective as light stabilizers heat stabilizers and oxidation, stabilizers for organic materials.
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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
- Filed November 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2012.
- 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
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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.