Laminated polyester film for magnetic recording medium

Details Laminated polyester film for magnetic recording medium Laminated polyester film for magnetic recording medium

1995-10-31

1997-12-30

Thibodeau, Paul J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 642, 428216, 428336, 428339, 428480, 428483, 428694B, 428694BU, 428694SL, 428910, B32B 2708, B32B 2730, B32B 2736, B32B 2740

Patent

active

057027943

ABSTRACT:
A magnetic recording tape or disk formed from a biaxially oriented laminated polyester base film which comprises a layer (A) of a polyester consisting essentially of 2,6-naphthalenedicarboxylic acid and ethylene glycol components and a layer (B) of a copolyester consisting essentially of 2,6-naphthalenedicarboxylic acid, ethylene glycol, and diethylene glycol components, wherein the copolyester contains 1-5% by weight of the diethylene glycol component, based on the weight of the layer (B) copolyester, layer (B) being present on one or both surfaces of layer (A).

REFERENCES:
patent: 3875119 (1975-04-01), Aoki et al.
patent: 3935166 (1976-01-01), Kanai et al.
patent: 3937754 (1976-02-01), Shimotsuma et al.
patent: 4619869 (1986-10-01), Kiriyama et al.
patent: 4687700 (1987-08-01), Hensel et al.
patent: 4761327 (1988-08-01), Hamano et al.
patent: 4798759 (1989-01-01), Dallman et al.
patent: 4804736 (1989-02-01), Utsumi
patent: 4876137 (1989-10-01), Utsumi
patent: 4952449 (1990-08-01), Okazaki et al.
patent: 5051292 (1991-09-01), Katoh et al.
patent: 5069902 (1991-12-01), Okazaki et al.

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