Printing plate with a layer containing a polymer, a thiazoline sensitizer, a leucodye and an organic azide
CA 1075954 A · Owner: Eastman Kodak Company · Inventors: Rauner, Frederick J.; Van Hanehem, Richard C.; Cunningham, Michael P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A presensitized printing plate contains a leuco dye and an organic azide to provide a print-out image when the presensitized plate is exposed to light. Development of the plate may remove the print-out image but provides a relief image-which may be dyed or pigmented. The light sensitive unsaturated materials used to provide the relief image include photocrosslinkable unsaturated polymers containing the moiety , as part of the polymer backbone. -1-
Read the whole patent
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 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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.