Process for making continuous films of ordered poly(ether ketone

Details Process for making continuous films of ordered poly(ether ketone Process for making continuous films of ordered poly(ether ketone

1989-12-18

1991-09-17

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

By casting liquids on a solid supporting or shaping surface

264237, 26433121, 528176, 528194, 528206, 528271, B29C 4126, B29D 700

Patent

active

050493400

ABSTRACT:
A process for extruding a smooth and uniform film or sheet of an ordered poly(ether ketone ketone) having a thickness of about 2.5 to 250 micrometers, wherein the molten extrudate is quenched on a drum maintained at a temperature of about 100.degree.-170.degree. C.

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Chung, C. I. et al., "Design of Coat-Hanger Type Extrusion Die for Isothermal Power Law Fluids", Proceedings of the 33rd Annual SPE Technical Conference (May 1975), pp. 363-365.
Vergnes, B. et al., "Non-Isothermal Flow of a Molten Polymer in a Coat-Hanger Die", Polymer and Engineering Science, vol. 24, No. 12 (Aug. 1984), pp. 980-987.
Abstract of United Kingdom Reference 2,079,867 (Jan. 1982).
Abstract of Japanese Reference (Kokai) 63-92,430 (Oct. 1988).
Abstract of Japanese Reference (Kokai) 63-256,422 (Oct. 1988).

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