CHANG CHUN PETROCHEMICAL CO., LTD.
|CHANG CHUN PETROCHEMICAL CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150037606||ELECTROLYTIC COPPER FOIL, CLEANING FLUID COMPOSITION AND METHOD FOR CLEANING COPPER FOIL - An electrolytic copper foil includes a copper foil body; and a IIA-group metal adhered to a surface of the copper foil body, wherein a signal strength of the IIA group metal is greater than 0.1% based on a signal strength of copper element as 100% analyzed by a secondary ion mass spectrometer. The present invention also provides a method for cleaning copper foil and a cleaning fluid composition which is used in the cleaning method.||02-05-2015|
|20150030873||ELECTROLYTIC COPPER FOIL - An electrolytic copper foil, which is particularly suitable for the application of a lithium ion secondary battery, has a shiny side and a matte side with a roughness of less than 2 μm. Based on the total sum of the texture coefficients of a (||01-29-2015|
|20140193660||ELECTROLYTIC COPPER FOIL AND METHOD FOR PRODUCING THE SAME - An electrolytic copper foil is provided. The electrolytic copper foil has a shiny side and a matte side opposing to the shiny side, wherein the difference in roughness between the shiny side and the matte side is 0.5 μm or less. The electrolytic copper foil has a tensile strength of 45 kg/mm||07-10-2014|
|20120111733||METHOD FOR PRODUCING POROUS COPPER FOIL - The present invention provides a method for producing a porous copper foil. The method of the present invention includes the steps of forming an oxide film by providing a chromium-containing compound to a metal surface of a cathode; forming a copper foil on the oxide film by performing electrolysis of copper; and removing the copper foil from the metal surface of the cathode. The method of the present invention is simple and time-saving, and the porous copper foil of the present invention has reduced roughness difference between both sides of the porous copper foil.||05-10-2012|
Patent applications by CHANG CHUN PETROCHEMICAL CO., LTD.