Biaxially oriented laminated film

Details Biaxially oriented laminated film Biaxially oriented laminated film

1989-06-08

1991-12-03

Buffalow, Edith L.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428213, 428402, 428480, 428483, 428900, 428910, B32B 516

Patent

active

050699628

ABSTRACT:
Disclosed is a biaxially oriented laminated film with excellent scratch resistance and friction property, as well as excellent dubbing resistance when used as a base film of magnetic recording media. The biaxially oriented laminated film comprises a first layer containing a first thermoplastic resin as a major constituent; and a second layer containing a second thermoplastic resin as a major constituent, which is formed on at least one surface of the first layer. The second layer contains inert particles with an average diameter of 0.1 to 10 times the thickness of the second layer, and the content of the inert particles in the second layer is 0.5-50% by weight. The thickness of the second layer is 0.005-3 .mu.m.

REFERENCES:
patent: 3873018 (1975-03-01), Donnay
patent: 4125190 (1978-11-01), Davie et al.
patent: 4241864 (1980-12-01), Kessler
patent: 4506789 (1985-03-01), Dlugosz
patent: 4589145 (1986-05-01), van Erden et al.
patent: 4687700 (1987-08-01), Hensel et al.

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