Polyester film and method of manufacture thereof

Details Polyester film and method of manufacture thereof Polyester film and method of manufacture thereof

1979-01-09

1980-11-11

Mc Camish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

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

427127, 427128, 427130, 427331, 4273722, 428145, 428147, 428149, 428152, 428447, 428480, 428483, 428484, 428900, H01F 1002

Patent

active

042333520

ABSTRACT:
A slippery and smooth-surfaced polyester film, at least one surface of which is covered with worm-like nodules, useful as a base film for high recording density magnetic tape.

REFERENCES:
patent: 3993846 (1976-11-01), Higuchi
patent: 4007313 (1977-02-01), Higuchi
patent: 4135032 (1979-01-01), Akashi

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