High voltage insulating materials

Details High voltage insulating materials High voltage insulating materials

1983-08-12

1985-06-04

Welsh, John D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

174110S, 174110E, 174DIG1, 427117, 524403, 524406, 524407, C08G 4700, H01B 300, C04B 3510

Patent

active

045215499

ABSTRACT:
Tracking is reduced in insulators comprising one or more polymers and an anti-tracking filler system comprising (a) a hydrate of alumina having a specific surface area of at least 2 m.sup.2 /g measured by the BET method, and (b) a compound selected from the group consisting of oxides, mixed oxides and mixtures of oxides wherein said compound contains at least one element selected from the group consisting of transition series elements, lanthanide series elements and nontransuranic actinide series elements.

REFERENCES:
patent: 2997526 (1961-08-01), Kessel et al.
patent: 3044900 (1962-07-01), Ford
patent: 3110623 (1963-11-01), Field
patent: 3206330 (1965-09-01), Chottiner
patent: 3626083 (1971-12-01), Minter et al.
patent: 4399064 (1983-08-01), Penneck
Potter, Pigment Handbook, J. Wiley & Sons, (1969), pp. 296, 298-299, 301, 302.
Chem. Absts., vol. 67, col. 109429, vol. 75, col. 37628k.
Alcoa, Alumina Properties, Tech. Paper, #10, (1960), p. 66, Aluminum Co. of Am.

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