Laminate of metal sheets and continuous filaments-reinforced...

Details Laminate of metal sheets and continuous filaments-reinforced... Laminate of metal sheets and continuous filaments-reinforced...

B - Operations, Transporting

32

B

154/126

B32B 15/08 (2006.01) B64C 1/00 (2006.01) C03C 13/00 (2006.01)

Patent

CA 1306936

ABSTRACT OF THE INVENTION LAMINATE OF METAL SHEETS AND CONTINUOUS GLASS FILAMENTS-REINFORCED SYNTHETIC MATERIAL Laminate displaying improved blunt notch behaviour, so that it is suitable for use as a constructional material in aviation and cosmo- nautics. It comprises an intermediate layer of synthetic material reinforced by continuous glass filaments having a modulus of elas- ticity of at least 80 GPa. The glass filaments contain at least 58-69% b.w. of SIO2, 18-29% b.w. of AL2O3 and MGO. Preferably, they have a tenacity of at least 4 GPa, and an elongation at break of at least 4%. The synthetic material may be an amorphous thermoplastic resin having a Tg > 140°C such as, e.g., polarylates, poly(ether)sulfones, polyetherimides or poly-p-phenylene ethers, or a semi- or para- crys- talline resin having a crystalline melting point > 170°C, such as poly-phenylene sulfides, polyetherketones or liquid crystal polymers.

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