Photoreactive compounds
CA 1297482 C · Owner: Boettcher, Andreas · Inventors: Boettcher, Andreas; Schulz, Guenther; Loerzer, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are a novel photoreactive compounds, which have advantageous properties in particular high, photoreactivity and good photosensitivity over a wide spectral wavelength range, and whose property spectrum can be altered to a great extent, the compounds therefore possessing a broad and varied range of possible uses especially for the production of coatings or protective layers and in optical information fixing. These compounds are of formulae:, (I), (II), where X is: R1, R4 and R6 are organic radicals which may contains heteroatoms; R2 unsaturated radical containing one or more aliphatic multiple bonds; R3 is hydrogen or an electron donor or electron acceptor group; R5 is H alkyl or …
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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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 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.
Timeline
Timeline From CIPO dates
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.