Capacitor having corrosion inhibitor

Details Capacitor having corrosion inhibitor Capacitor having corrosion inhibitor

2005-09-13

2005-09-13

Koslow, C. Melissa (Department: 1755)

Compositions

Electrolytes for electrical devices

C361S503000, C361S504000, C361S506000

Reexamination Certificate

active

06942819

ABSTRACT:
An electrolyte for use with an aluminum electrolyte capacitor includes a glycol/boric acid/borate compound, traces of water, and an inhibitor to suppress corrosion of an aluminum oxide coating of the capacitor. The inhibitor contains a weak organic acid and at least one acid group selected from among carboxylic acid, sulfonic acid, phosphonic acid, and an acidic derivative of carboxylic acid, sulfonic acid, and phosphonic acid.

REFERENCES:
patent: 4469610 (1984-09-01), Fukuda et al.
patent: 3 824 447 (1988-07-01), None
patent: 3 734 185 (1989-04-01), None
patent: 0 046 219 (1981-07-01), None
patent: 01168016 (1989-07-01), None
patent: 05152165 (1993-06-01), None
patent: 07211589 (1995-08-01), None
patent: 07-211589 (1995-08-01), None
Derwent abstract for JP 7-211589.

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