Non-woven sheet containing fibers with sheath/core construction

Details Non-woven sheet containing fibers with sheath/core construction Non-woven sheet containing fibers with sheath/core construction

D - Textiles, Paper

04

H

D04H 3/16 (2006.01) B32B 27/12 (2006.01) D04H 3/14 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2742381

A non-woven sheet contains sheath/core polymer fibers with the polymer in the sheath having a melting point at least 15 degrees centigrade higher than the melting point of the polymer of the core. Preferably, the polymer of the sheath is polyphenylenesulfide and the polymer of the core is polyethyleneterephthlate. The nonwoven sheet can be used with a film to make a composite laminate suitable for use in electrical insulation.

L'invention concerne une feuille non tissée qui contient des fibres de polymères de gaine et de cur, le point de fusion du polymère dans la gaine étant supérieur d'au moins 15 degrés centigrade au point de fusion du polymère du cur. De préférence, le polymère de la gaine est un polyphénylène sulfure et le polymère du cur est un polyéthylène téréphtalate. La feuille non tissée peut être utilisée avec un film pour fabriquer un stratifié composite approprié à une utilisation en isolation électrique.

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