Magnetic tape cassette and storage case

Details Magnetic tape cassette and storage case Magnetic tape cassette and storage case

1984-07-18

1985-12-10

Moy, Joseph Man-Fu

Special receptacle or package

For holding a machine readable recording medium

For holding a tape cassette

206819, B65D 8567

Patent

active

045573808

ABSTRACT:
A magnetic tape cassette system is described, comprising a magnetic tape cassette and a storage case therefor, wherein at least one of the magnetic tape cassette and the storage case is molded using a resin composition containing from 75 to 95% by weight of .alpha.-methylstyrene-acrylonitrile copolymer (A) and from 5 to 25% by weight of graft copolymer (B) obtained by reacting a polybutadiene-based rubber with monomers consisting of styrene and acrylonitrile, wherein said .alpha.-methylstyrene-acrylonitrile copolymer is a copolymer having a composition consisting of from 75 to 90% by weight of .alpha.-methylstyrene, from 10 to 25% by weight of acrylonitrile, and from 0 to 5% by weight of styrene, and 30% by weight or more of said .alpha.-methylstyrene-acrylonitrile copolymer is a copolymer component having a composition containing 82% by weight or more of .alpha.-methylstyrene.

REFERENCES:
patent: 4063370 (1977-12-01), Saito
patent: 4135316 (1979-01-01), Saito
patent: 4306690 (1981-12-01), Izaki et al.
patent: 4365712 (1982-12-01), Oishi et al.

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