Sheet material and its use in circuit boards

Details Sheet material and its use in circuit boards Sheet material and its use in circuit boards

B - Operations, Transporting

32

B

B32B 5/14 (2006.01) B29B 13/10 (2006.01) B32B 27/04 (2006.01) D04H 1/00 (2006.01) D04H 13/00 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2455053

A sheet comprising thermoplastic polymer (TP) (4) and short high tensile modulus fibers (3) , in which the concentration of TP (4) in the middle of the sheet is higher than at the surface of the sheet, useful for making prepregs with a thermoset resin.

Feuille comprenant un polymère thermoplastique et des fibres courtes à modules d'élasticité élevé et dans laquelle la concentration de polymère thermoplastique est plus élevée en son centre qu'à sa surface. Cette feuille est utile dans la fabrication d'un préimprégné avec une résine thermodurcissable.

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