Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-03-24
2010-06-22
Arbes, C. J (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S825000, C029S832000, C029S847000, C029S877000
Reexamination Certificate
active
07739789
ABSTRACT:
The present invention provides a method for forming a surface graft, comprising the process of applying energy to the surface of a substrate containing polyimide having a polymerization initiating moiety in the skeleton thereof, to generate active points on the surface of the substrate and to generate a graft polymer that is directly bonded to the surface of the substrate starting from the active points and that has a polar group, and a surface graft material obtained thereby. The present invention also provides a method for forming a conductive film, comprising the processes of applying energy to the surface of a substrate containing polyimide having a polymerization initiating moiety in the skeleton thereof, to generate active points on the surface of the substrate and to generate a graft polymer that is directly bonded to the surface of the substrate starting from the active points and that has a polar group, and causing a conductive material to adhere to the graft polymer, and a conductive material obtained thereby.
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Improved Adhesion between Kapton Film and Copper Metal by Plasma Graft Polymerization of Vinylimidazole by N. Inagaki et al Macromolecule, 1996 1642-1648.
Kano Takeyoshi
Kawamura Koichi
Arbes C. J
FUJIFILM Corporation
Sughrue & Mion, PLLC
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