C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/3, 204/97.01
C25D 1/18 (2006.01) B29C 41/00 (2006.01) C08G 61/12 (2006.01) C25D 1/20 (2006.01) H01M 4/60 (2006.01) H05K 1/09 (2006.01) H05K 3/00 (2006.01) H05K 3/20 (2006.01)
Patent
CA 1301107
26494-100 ABSTRACT OF THE DISCLOSURE A novel in-mold electrodeposition process is disclosed for the production of plastic parts having conductive polymeric coatings such as polypyrroles or polythiophenes. The process comprises providing a mold cavity defined by a mold member having a catalytic surface; connecting the mold member as an electrode to a current source; electrodepositing a conductive polymer onto the catalytic surface of the mold member to form a conductive film; introducing into the mold cavity a viscoelastic molding material; compressing the molding material within the molding cavity so as to achieve greater adherence of the conductive film to the molding material than the adherence of the conductive film to the catalytic surface of the mold member; solidifying or curing the viscoelastic molding material to form a molded part; and releasing the molded part with adhering conductive film from the mold cavity. Parts produced according to the novel disclosed in-mold electrodeposition process would have wide applicability including static free plastic parts shielding devices and circuits. The disclosed process advances the art by enabling the utilization of conductive polymers many of which were heretofore considered too brittle for commercial adaptation.
499294
Hillenbrand Louis J.
Preston Joseph R.
Battelle Development Corporation
Fetherstonhaugh & Co.
Hillenbrand Louis J.
Preston Joseph R.
LandOfFree
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