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US 10,647,815 B2Granted
Electrical tracking resistance compositions, articles formed therefrom, and methods of manufacture thereof
AssigneeSabic Global Technologies B.V.
InventorsKapil Chandrakant Sheth, Hariharan Ramalingam, Gaurav Mediratta
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Abstract
A composition comprises, based on the total weight of the composition, 50 wt % to 90 wt % of a polyetherimide; and 10 wt % to 50 wt % of a filler comprising talc, titanium dioxide, zirconium oxide, neutral aluminum oxide, or a combination comprising at least one of the foregoing; wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.
Claims18
A composition comprising, based on the total weight of the composition,
- 50 wt % to 70 wt % of a polyetherimide;
- and
- 30 wt % to 50 wt % of a filler comprising talc having a D95 of 2 to 6 micrometers determined by Sedigraph analysis;
- wherein the degradation temperature difference between the polyetherimide and the composition is less than 10° C.;
- and
- wherein the composition has a number of drops to tracking at 250 volts of greater than or equal to 50 drops determined according to ASTM D-3638-85.
3 more elements
Dependencies are inferred from the claim text.