Electrolyte solution for manufacturing electrolytic copper foil and electrolytic copper foil manufacturing method using the same
CA 2448892 A1 · Owner: Yang, Jeom-Sik · Inventors: Yang, Jeom-Sik; Lim, Seung-Lin; Kim, Ki-Jung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention generally relates to an electrolyte solution used to manufacture an electrolytic copper foil for a secondary battery electrode collector and a printed circuit and based on a 1-liter electrolyte, solution the present invention contains: 0.5 to 40mg of at least one sulfur compound selected from a disulfur compound diaklyamino- T oxomethyl-, thioalkan sulfonic acid and thioalkan sulfonic acid salt; 1 to 1000mg of at least more than one kind of an organic compound selected from a group consisting of a poly aklylene glycol-type surfactant and low molecular gelatin; and 0.1 to 80mg of chlorine ion. The electrolytic copper foil in accordance with the present invention has a …
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
- Filed November 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2025.
- 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.