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US 10,373,727 B2Granted
Prepreg mica tape and coil using same
AssigneeHitachi Chemical Company, Ltd.
InventorsShihui Song, Takaya Yamamoto, Yoshitaka Takezawa
Life of this patent
Estimating the term…
Abstract
A prepreg mica tape includes: a backing material (3); a boron nitride-containing layer (1) that is provided on or above one surface of the backing material (3) and that includes a boron nitride particle (5) and a first resin (4); and a mica-containing layer (2) that is provided on or above the surface of the backing material (3) on which the boron nitride-containing layer (1) is provided and that includes mica (6) and a second resin (4).
Claims15
A prepreg mica tape, comprising:
- a backing material;
- a boron nitride-containing layer that is provided on or above one surface of the backing material, and that comprises boron nitride and a first resin;
- and
- a mica-containing layer that is provided on or above the one surface of the backing material on which the boron nitride-containing layer is provided, and that comprises mica and a second resin,
- wherein a content of the boron nitride is from 10 to 50% by volume, with respect to a total amount of all solid contents except the backing material and the mica included in the prepreg mica tape,
- wherein the boron nitride-containing layer and the mica-containing layer are provided in this order on or above the one surface of the backing material, and
- wherein the backing material comprises a glass cloth, the first resin comprises an epoxy resin, the second resin is the first resin, and the first resin extends into the mica-containing layer, through the boron nitride-containing layer, and into the backing material.
4 more elements
A prepreg mica tape, comprising:
- a backing material;
- a boron nitride-containing layer that is provided on or above one surface of the backing material, and that comprises boron nitride and a first resin;
- and
- a mica-containing layer that is provided on or above the one surface of the backing material on which the boron nitride-containing layer is provided, and that comprises mica and a second resin,
- wherein a content of the boron nitride is from 10 to 50% by volume, with respect to a total amount of all solid contents except the backing material and the mica included in the prepreg mica tape, and
- wherein at least a portion of the boron nitride-containing layer is disposed between the mica-containing layer and the backing material, the backing material comprises a glass cloth, the first resin and the second resin comprise an epoxy resin, and the epoxy resin extends into the mica-containing layer, through the boron nitride-containing layer, and into the backing material.
3 more elements
Dependencies are inferred from the claim text.