Novel trifunctional photoinitiators
CA 2522014 C · Owner: Birbaum, Jean-Luc · Inventors: Boulmaaz, Souad; Sommerlade, Reinhard H.; Huesler, Rinaldo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The Invention relates to novel ketones of formulae (I) and (II) wherein R1 R2, R3 and R4 are, for example, Cl-C8alkyl R5 is, for example, hydrogen, A is , CI Br, -0-R7, -NR8R9 or -S-R16, A' is -O- -NH- or -NR8-, X and Y are each , independently of the other -O-R10 or -N(R11)(RI2) n is an integer from 1 to , 10, R6 is, for example an n-valent radical of linear or branched C2-C20alkyl the carbon chain of which may be interrupted by cyclohexanediyl phenylene, -, CH(OH)-, -C(C2H5)(CH2-CH2-OH)- -C(CH3)(CH2-CH2-OH)-, -C(CH2-CH2-OH)2- -, N(CH3)-, -N(C2H5)-, -N(CH2-CH2-OH)- -CO-O-, -O-CO-, -P(CH2-CH2-OH)-, -, P(O)(CH2-CH2-OH)- -0-P(O-CH2-CH2-OH)-O-, -0-P(O)(0-CH2-CH2-OH)-O- -O-, …
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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.
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- Filed May 4, 2004 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2026.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.