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US 2015/0318078 A1Published application
Electrical insulating paper
AssigneeTeijin Aramid B.V.
InventorsBen ROLINK, Richard VISSER, Frank DIEDERING
Life of this patent
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Abstract
An electrical insulating paper having 40-80 wt % of aramid fibrid, 10-50 wt % of aramid pulp, and 10-50 wt % of aramid short-cut. The aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler value of 15-85; the aramid fibrid is para-aramid fibrid; and the aramid short-cut is para-aramid short-cut. The paper shows a high dielectric strength and tensile index. A method for manufacturing the paper and an insulated conductor that includes the paper.
Claims14
An electrical insulating paper comprising,
- 40-80 wt % of aramid fibrid,
- 10-50 wt % of aramid pulp, and
- 10-50 wt % of aramid short-cut,
- wherein the aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler (SR) value of 15-85.
1 more element
12-13. (canceled)
Dependencies are inferred from the claim text.