FIBROUS COMPOSITE MATERIALS AND THEIR APPLICATION IN VACUUM INSULATION SYSTEMS Russian patent published in 2013 - IPC D04H1/42 

FIELD: machine building.

SUBSTANCE: invention described fibrous composite material intended to be used as insulating material, which includes high-efficiency polymer fibres characterised by fusion temperature or glass transition temperature at least of 200°C and heat conductivity of solid phase of not more than 0.7 W/(mK), and binding fibres. Content of high-efficiency polymer fibres comprises at least 70 wt % while content of binding fibres does not exceed 30 wt %. Fibrous composite material has density of 50 to 300 kg/m³, which is measured at load in the direction perpendicular to the plane of the main fibre orientation of 1 mbar to 1000 mbar, as well as layered location of fibres, at least some part of which is connected to each other at contact points that can be created owing to softening of binding fibres and high-efficiency polymer fibres have cross section of out-of-round shape. Besides, the application describes a heat insulation system that includes the above fibrous composite material.

EFFECT: combination of high insulating efficiency of the corresponding systems with ease and simplicity of their processibility.

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