Biaxially oriented, laminated polyester film

Details Biaxially oriented, laminated polyester film Biaxially oriented, laminated polyester film

2006-01-10

2006-01-10

Watkins, III, William P. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

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

C428S143000, C428S213000, C428S480000, C428S690000, C428S690000, C428S690000

Reexamination Certificate

active

06984435

ABSTRACT:
A biaxially oriented, laminated polyester film having at least two layers, and in the film, an irregularity in film thickness determined within 4 mm width at an arbitrary position in a transverse direction of the film is about 0.1 μm or less. This polyester film can satisfy both the electromagnetic conversion property and the running ability at a high level, particularly when the film is used as a base film for a large capacity tape for data storage.

REFERENCES:
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patent: 2001-335647 (2001-12-01), None
patent: 2001-341260 (2001-12-01), None

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