Electroluminescent composition and electroluminescent device therewith
CA 1316686 C · Owner: Kaneko, Tatsushi · Inventors: Chiba, Tohru; Kaneko, Tatsushi; Maruyama, Kazumasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electroluminescent device of the dispersion type exhibiting high brightness of electroluminescence and having excellent heat resistance and flexibility can be prepared by using as, the matrix material of the particulate electroluminescent material, a specific cyanoalkyl group-containing organopolysiloxane represented by the average unit formula R1aR2bSiO(4-a-b)/2 in, which R1 is a cyanoalkyl group having 3 yo 5 carbon atoms R2, is a monovalent hydrocarbon group, a is 0.8 to 1.8 and b is 0 to 1.0 with the proviso that a+b is 1.1 to 1.98.
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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 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2010.
- 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.