Flame retardant, high temperature resistant polyimide fibres

Details Flame retardant, high temperature resistant polyimide fibres Flame retardant, high temperature resistant polyimide fibres

D - Textiles, Paper

01

F

18/626, 28/9

D01F 6/74 (2006.01) B29C 43/00 (2006.01) B29C 67/24 (2006.01) D04H 1/42 (2006.01)

Patent

CA 1335149

The invention relates to flame-retardant, high- temperature resistant polyimide fibres, a fleece made up of these fibres, and the fibres and moulded parts obtained after a heat treatment. The fibres according to the invention develop a shrinking force of from 0.3 to 1.1 cN, a fibre shrinkage of between 20 and 60% and form cohesive bonds after heating to a temperature above the glass transition range, of between 280 and 350°C. From the fibres according to the invention it is possible to produce moulded parts of very high tensile strength, high heat resistance, flame-retardant properties and having a relatively low density.

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