| 摘要 |
<p>It is an object of the present invention to obtain a low-profile electrolytic copper foil with a small surface roughness on the side of the rough surface (the opposite side from the lustrous surface) in the manufacture of an electrolytic copper foil using a cathode drum, and more particularly to obtain an electrolytic copper foil which allows fine patterning, and which is superior in terms of elongation and tensile strength at ordinary temperatures and high temperatures. Furthermore, it is an object of the present invention to obtain a copper electrolytic solution for this purpose. This copper electrolytic solution contains as additives an organo-sulfur compound and a quaternary amine compound with a specific skeleton expressed by the following general formula (1) which is obtained by an addition reaction between a compound which has one or more epoxy groups per molecule and an amine compound, followed by a quaternization of the nitrogen. <CHEM> (In general formula (1), R1 and R2 each indicate a group selected from the group consisting of a hydroxyalkyl group, an ether group, an aromatic group, an aromatic-substituted alkyl group, an unsaturated hydrocarbon group and an alkyl group, R3 indicates a benzyl group, an allyl group or an alkyl group, A indicates an epoxy compound residue, X1<-> indicates Cl<->, Br<-> or CH3SO4<->, and n indicates an integer of 1 or greater.) <IMAGE></p> |
