Tape cassette with general purpose polystyrene body colored by c

Details Tape cassette with general purpose polystyrene body colored by c Tape cassette with general purpose polystyrene body colored by c

1991-02-21

1993-01-05

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 23087

Patent

active

051776553

ABSTRACT:
A tape cassette is provided, in which a cassette shell body made of opaque resin and a window portion made of transparent resin are molded to be unitary by a dichromatic molding process. This tape cassette is characterized in that the transparent resin of the window portion is general purpose polystyrene and the opaque resin of the cassette shell body is general purpose polystyrene colored by adding thereto very small amounts of rubber component and pigment.

REFERENCES:
patent: 4191984 (1980-03-01), Tsukidate et al.
patent: 4530475 (1985-07-01), Buerkle et al.
patent: 4965690 (1990-10-01), Tanaka et al.

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