Polyethylene naphthalate film for high-density magnetic recordin

Details Polyethylene naphthalate film for high-density magnetic recordin Polyethylene naphthalate film for high-density magnetic recordin

1987-09-18

1989-10-24

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

2642107, 2642884, 2642902, 427128, 428480, 428694, 428900, G11B 564

Patent

active

048761370

ABSTRACT:
Disclosed herein is a polyethylene naphthalate film for high-density magnetic recording media of floppy disk which has little anisotropy, high mechanical strength and good dimensional stability, and which scarcely causes a drop out and has good productivity.

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Patent Abstracts of Japan, vol. 7, No. 266, p. 239(1411) (Japanese Pat. Appln. Laid-Open (Kokai) 58-146022(1983)).
Japanese Patent Application Laid-Open (Kokai) No. 59-127730 (1984).

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