THERMAL INSULATION STRUCTURES COMPRISING LAYERS OF EXPANDED GRAPHITE PARTICLES COMPRESSED TO DIFFERENT DENSITIES AND THERMAL INSULATION ELEMENTS MADE FROM THESE STRUCTURES

WIPO Patent Application WO2004063612

A3

Thermal insulation structure comprising at least one flexible layer based on compressed expanded graphite particles characterised in that the density of the said flexible layer is equal to at least 0.4 g/cm3 (400 kg/m<3>) and in that the said thermal insulation structure also comprises another layer close to the said flexible layer based on compressed graphite particles with a lower density, typically less than 0.4 g/cm<3> (400 kg/m<3>). Preferably, the dense compressed expanded graphite layer has a density of between 0.5 and 1.6 g/cm<3> (500 and 1600 kg/m<3>) and the said sub-dense compressed expanded graphite layer has a density of between 0.05 and 0.3 g/cm<3> (50 and 300 kg/m<3>). Thermal insulation elements are also described that are designed to be fitted on furnaces operating under non-oxidising atmosphere and at temperatures of more than 800°C.

POTIER ALEXANDRE (FR)
BERGER DOMINIQUE (FR)
BOMMIER CHRISTOPHE (US)
RAYMOND OLIVIER (FR)
DE WASCH JEROME (FR)

PCT/EP2004/001017

January 13, 2005

January 08, 2004

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CARBONE LORRAINE COMPOSANTS (FR)
POTIER ALEXANDRE (FR)
BERGER DOMINIQUE (FR)
BOMMIER CHRISTOPHE (US)
RAYMOND OLIVIER (FR)
DE WASCH JEROME (FR)

B32B18/00; C04B35/536; (IPC1-7): C04B35/536; B32B7/02; B32B18/00

WO2001078460A1

2001-10-18

US20020182387A1	2002-12-05
US5573253A	1996-11-12
EP0263402A2	1988-04-13
US3404061A	1968-10-01
EP0433478A1	1991-06-26
US5509993A	1996-04-23

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