Resin-compatible laminate structures

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United States of America Patent

PATENT NO 10336039
APP PUB NO 20170320298A1
SERIAL NO

15490141

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention pertains to a laminate structure suitable for use as electrical insulation, comprising a first paper layer comprising 90 to 99 weight percent uniformly distributed calcined mica and 1 to 10 weight percent supporting material, a majority by weight of the supporting material being in the form of a floc; and a support layer comprising unidirectional filaments or unidirectional yarns or woven yarns; wherein the support layer is bound to the first paper layer; the laminate structure having a dielectric strength of 15 kV/mm or greater, a Gurley porosity of 400 seconds or less, and total mica content of 60 weight percent or greater. The laminate structure can further comprise a second paper layer bound to the support layer, the second paper layer comprising 90 to 99 weight percent uniformly distributed calcined mica and 1 to 10 weight percent supporting material, a majority by weight of the supporting material being in the form of a floc.

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Patent Owner(s)

  • EI DU PONT DE NEMOURS AND COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kang, Byoung Sam Midlothian, US 17 30
Lee, Sang Woo Seoul, KR 138 937

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