Biaxially oriented poly-p-phenylene sulfide films

Details Biaxially oriented poly-p-phenylene sulfide films Biaxially oriented poly-p-phenylene sulfide films

1979-04-23

1981-08-25

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428419, 428900, 428901, 528373, 528374, 528388, 528397, B32B 2706, C08G 7500, C08G 7514, C08G 6100

Patent

active

042860180

ABSTRACT:
A biaxially oriented poly-p-phenylene sulfide film comprising recurring units of the formula ##STR1## a melt viscosity of more than 100 poise and less than 600,000 poise at a shear rate of 200 sec.sup.-1 and at 300.degree. C., and a specific gravity of which is more than 1.330 and less than 1.400. The film has improved mechanical properties, thermal dimensional stability and high temperature durability. Typical applications of the film are as electrical insulation, capacitor, magnetic recording medium, packaging material, and so forth.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds et al.
patent: 3919177 (1975-11-01), Campbell
patent: 4024118 (1977-05-01), Campbell et al.
patent: 4098776 (1978-07-01), Tiesgen et al.
Tabor et al., European Polymer Journal, 1971, vol. 7, pp. 1127-1133, "The Crystal Structure of Poly-p-Phenylene Sulphide", Pergamon Press.
Brady, Journal of Applied Polymer Science, 1976, vol. 20, pp. 2541-2551, "The Crystallinity of Poly(Phenylene Sulfide) and its Effect on Polymer Properties".
Hill, ACS Polymer Reprints, 20, Apr. 1979, pp. 173-176, "A New High Molecular Weight Polyphenylene Sulfide".

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