Polyester multilayered film for high-density magnetic disc

Details Polyester multilayered film for high-density magnetic disc Polyester multilayered film for high-density magnetic disc

1992-07-01

1994-06-07

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428323, 428327, 428331, 428480, 428694BR, 428694SG, B32B 516, D06N 704

Patent

active

053188233

ABSTRACT:
A multilayered polyester film for high-density magnetic discs, comprising a layer of polyester (A) and a layer of polyester (B) having a thickness of not more than 3 .mu.m, being laminated on at least one side of the layer of polyester (A) and having specific surface characteristics.

REFERENCES:
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patent: 4568599 (1986-02-01), Ono et al.
patent: 4615939 (1986-10-01), Corsi et al.
patent: 4680217 (1987-07-01), Kanesaki et al.
patent: 4732814 (1988-03-01), Hatada et al.
patent: 4865898 (1989-09-01), Fukuda et al.
patent: 5045379 (1991-09-01), Kotani et al.
patent: 5069962 (1991-12-01), Okazaki et al.
Patent Abstracts of Japan, JP-A-01 032 423 (Diafoil Co. Ltd.). Feb. 1989.

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