Insulator having excellent arc resistance

Details Insulator having excellent arc resistance Insulator having excellent arc resistance

2011-01-11

2011-01-11

Mc Ginty, Douglas (Department: 1796)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C252S567000, C252S001000, C252S06230Q, C252S06230Q, C252S519510, C252S520210, C361S115000

Reexamination Certificate

active

07867935

ABSTRACT:
A highly heat-resistant fluororesin, such as tetrafluoroethylene resin or tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, is filled with 0.5 to 1 weight % of a non-black insulating pigment that has a heat resistance such that discoloration does not occur when the fluororesin is baked. Green insulating pigment whose main component is a TiO2—CoO—NiO—ZnO system or a ZnO—CoO system, or blue insulating pigment whose main component is a CoO—Al2O3system or a CoO—Al2O3—Cr2O3system is used singly or in a combination, as the non-black insulating pigment. A highly arc-resistant insulator is provided that secures an insulating capacity and at the same time that secures an excellent ability to prevent both interior and exterior deterioration of the insulator and that avoids color heterogeneity and localized discoloration.

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Chapter II “The Details of Colorant, Pigment”, paragraph 2 “General Properties”, 2.7 “Hiding Power”, Colorant Engineering Handbook, Japan Society of Color Material, Asakura Publishing Co., Ltd. 1989.

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