Process for producing laminated capacitors and capacitor made fr

Details Process for producing laminated capacitors and capacitor made fr Process for producing laminated capacitors and capacitor made fr

1994-01-19

1995-01-24

Powell, William

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156634, 156643, 156644, 156651, 156656, 21912169, B44C 122, C23F 100

Patent

active

053840054

ABSTRACT:
A process for producing laminated capacitors includes stacking of metallized plastic films. It includes a step of winding of at least one pair of metallized plastic films, this step being separated into three phases, a first phase of making finishing turns and during which the films are demetallized so that their superposition does not lead to any additional capacitance in the final component, a second phase of superposing the films so that they contribute to the capacitance of the final component and during which the films are demetallized near their edges, and a third phase intended to perform finishing turns under the same conditions as during the first phase, wherein the demetallizations of the films occurring in the successive phases are performed by etching. The process for producing laminated capacitors can also include at least one step of demetallization of metallized plastic films appearing in the form of widths of great width intended to be cut into elementary ribbons, in which the demetallization is performed by etching.

REFERENCES:
patent: 4685197 (1987-11-01), Tigelaar et al.
patent: 4700457 (1987-10-01), Matsukawa

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