Photo-setting conductive coating composition
CA 2129440 C · Owner: Sekisui Chemical Co. Ltd. · Inventors: Sugimoto, Toshiya; Suezaki, Minoru; Maruyama, Kouji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a photo-setting conductive coating composition which is used as an antistatic material constituting articles wherein static electrification must be avoided, such as storage vessels for semi-conductor wafers, electronic/electric parts floor/wall coverings for a production factory of semiconductors, etc. The photo-setting conductive coating composition comprising 100 parts by weight of an antimony oxidecontaining tin oxide powder (a) having a particle size of 0.01 to 0.4 µm, 10 to 100 parts by weight of a (meth)acrylate compound (b) having at least two (meth)acryloyl groups in a molecule, 10 to 100 parts by weight of an acetal resin (c) having a residual …
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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
- Filed December 1, 1993 and granted April 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2015.
- 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.