Composition, useful for obtaining composite material, which is useful in electrical insulator, co

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The invention relates to a composition including/understanding of the mica and glass, the aforementioned glass including/understanding : - 10 to 30% in moles of SiO, - 5 to 40% in moles of BaO, - 15 to 30% in moles of B O, the sum of the contents zinc oxide, oxidize the alkaline one and oxidize the alkaline-earth one going from 15 to 65% in moles. This composition is intended to be moulded with an higher temperature in Tg of glass to form composite parts being able to be useful like electric insulator.