Aromatic polyamide and/or aromatic polyimide film and magnetic r

Details Aromatic polyamide and/or aromatic polyimide film and magnetic r Aromatic polyamide and/or aromatic polyimide film and magnetic r

1997-02-26

1999-10-26

Kiliman, Leszek

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428143, 428218, 428323, 428336, 4284744, 428694ST, 428694SL, 428694SG, 428900, B32B 310

Patent

active

059724749

ABSTRACT:
An aromatic polyamide and/or aromatic polyimide film suitable as a support in a magnetic recording medium excellent in runnability and scratch resistance and good in S/N ratio comprises an aromatic polyamide and/or aromatic polyimide as a main component, with particles present in the film, which film has characteristics which satisfy the following formulae:

REFERENCES:
patent: 4818581 (1989-04-01), Katoh
patent: 4840830 (1989-06-01), Sakamoto
patent: 4910068 (1990-03-01), Takagi
patent: 5139849 (1992-08-01), Takagi
patent: 5336079 (1994-08-01), Okazaki
patent: 5516574 (1996-05-01), Ogawa
patent: 5556691 (1996-09-01), Etchu

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