Photoinitiators for photopolymerization of unsaturated systems
CA 1267656 C · Owner: Gehlhaus, Jurgen · Inventors: Wehner, Gregor; Gehlhaus, Jurgen; Kohler, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the general formula I (I), wherein, Z is CR1R2(OR3), R1 being H C1-6-alkyl or phenyl, R2 being H, C1-6-alkyl or C1-6-alkoxy and R3 being H, C1-6-alkyl or C1-6-alkanoyl and Z' is Y-(CH2)m-xn-, X being CH2 or O, Y being OH; COOH or SO3H including the alkali metal alkaline earth metal or ammonium salts thereof and also the salts thereof with organic nitrogen bases; or NRR' in which R and R' are in each case H C1-20-, alkyl or C1-4-hydroxyalkyl, if appropriate quaternized or in the form of the acid addition salts and, n and m each being the numbers 1-4 are excellently suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds in, particular in …
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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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.