Fluororesin sheet, process for producing the same, and the...

Details Fluororesin sheet, process for producing the same, and the... Fluororesin sheet, process for producing the same, and the...

C - Chemistry, Metallurgy

08

J

C08J 5/04 (2006.01) B32B 27/02 (2006.01) B32B 27/32 (2006.01) C08J 3/00 (2006.01) C08L 27/12 (2006.01) D21H 13/26 (2006.01) D21H 17/34 (2006.01) D21J 3/12 (2006.01) F16C 33/20 (2006.01) D21H 17/35 (2006.01) D21H 25/06 (2006.01)

Patent

CA 2227976

Disclosed is a fluororesin sheet comprising an aromatic polyamide pulp and a fluororesin as an essential component, the tensile strength of the fluororesin sheet being not less than 250 Kg/cm2, a process for producing the fluororesin sheet which comprises dispersing the aromatic polyamide pulp and the fluororesin powder in water; adding a coagulating agent which destabilizes the dispersing of the fluororesin powder to the dispersion to deposit the fluororesin powder on the surface of the aromatic polyamide pulp; paper- making, followed by drying to obtain a sheet article; and compressing the sheet article using a roller, followed by heating.

L'invention concerne une feuille en résine fluorée à base de pâte polyamide aromatique et dont une résine fluorée est un constituant essentiel, la résistance à la traction de cette feuille n'étant pas inférieure à 250 kg/cm?2¿, ainsi qu'un procédé relatif à la fabrication de ladite feuille et, qui comprend les étapes suivantes: dispersion de la pâte polyamide aromatique et de la poudre de résine fluorée dans l'eau; adjonction à la dispersion d'un coagulant qui déstabilise la dispersion de la poudre de résine fluorée, en vue de déposer ladite poudre à la surface de la pâte polyamide aromatique; étape de fabrication du papier, suivie d'un séchage, afin d'obtenir un article sous forme de feuille; et compression dudit article à l'aide d'un rouleau, suivie d'un chauffage.

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