Electrical insulating composition based on polyolefin containing

Details Electrical insulating composition based on polyolefin containing Electrical insulating composition based on polyolefin containing

1978-09-20

1980-08-05

Pitlick, Harris A.

Compositions

Electrolytes for electrical devices

252 637, 252 64, H01B 330

Patent

active

042161010

ABSTRACT:
A voltage stabilized solid polyolefin dielectric composition is disclosed. The dielectric composition comprises a polyolefin containing a voltage stabilizing amount of an additive selected from the class of dyes identified in the Color Index as being of the solvent type possessing either an azo or a quinoid type structure, or having a xanthene structure exhibiting fluorescence. The solvent dyes must be soluble in or melt miscible with the polyolefin. The solvent dyes must also be stable at the processing temperature and under the conditions of use.

REFERENCES:
patent: 3046076 (1962-07-01), Upshur
patent: 3069220 (1962-12-01), Dawson
patent: 3346500 (1967-10-01), Hunt
patent: 3499791 (1970-03-01), Maloney
patent: 3522183 (1970-07-01), Heidt
patent: 3577346 (1971-05-01), McKeown
patent: 3632680 (1972-01-01), Hunt et al.
patent: 3674695 (1972-07-01), Wuerstlin et al.
patent: 4035311 (1977-07-01), Feichtmayr et al.
Ashcraft et al, "Laboratory Studies of Treeing in Solid Dielectrics and Voltage Stabilization of Polyethylene", IEEE Conference Record 1976, pp. 213-218.

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