Resinous disc cartridge containing an ester compound of glycerin

Details Resinous disc cartridge containing an ester compound of glycerin Resinous disc cartridge containing an ester compound of glycerin

1992-11-04

1995-04-25

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2303

Patent

active

054104408

ABSTRACT:
A disc cartridge including a recording disc, a cartridge case in which the recording disc is housed rotatably and a head inserting opening is formed at a predetermined location, and a synthetic resin-made shutter adapted to open and close the head inserting opening in the cartridge case, wherein the cartridge case and the shutter contain an ester compound of glycerin and optionally an amine type organic compound.

REFERENCES:
patent: 4901180 (1990-02-01), Oishi
patent: 5084862 (1992-01-01), Fujita et al.
patent: 5121380 (1992-06-01), Fujita et al.

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