Pressure-sensitive adhesive sheet and magnetic disc device
AssigneeNitto Denko Corporation
InventorsKenji Furuta, Akira Hirao, Tatsuya Suzuki, Hiroki Ieda, Akira Chinen, Minami Watanabe
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Abstract
Provided is a PSA sheet that achieves both bonding reliability at a high temperature and reduction of outgassing. The PSA sheet provided by this invention comprises a substrate layer and a PSA layer provided to one face of the substrate layer. The PSA sheet exhibits a 180° peel strength of 1 N/20 mm or greater to stainless steel at 60° C. It has an amount of thermally released gas of 10 μg/cm2 or less, determined at 130° C. for 30 minutes by GC-MS.
Claims20
A magnetic disc device comprising
- at least one data-recording magnetic disc,
- a motor that rotates the magnetic disc,
- a magnetic head that at least either reads or writes data on the magnetic disc,
- an actuator that moves the magnetic head, and
- a housing that houses the magnetic disc, the motor, the magnetic head and the actuator;
- wherein
- the housing is provided with a cover seal,
- the cover seal is a pressure-sensitive adhesive sheet comprising a substrate layer and a pressure-sensitive adhesive layer provided to one face of the substrate layer, and
- the pressure-sensitive adhesive sheet exhibits a 180° peel strength of 1 N/20 mm or greater to stainless steel at 60° C. and has an amount of thermally release gas of 10 μg/cm2 or less, determined at 130° C. for 30 minutes by gas chromatography/mass spectrometry.
A pressure-sensitive adhesive sheet comprising a substrate layer and a pressure-sensitive adhesive layer provided to one face of the substrate layer,
- the pressure-sensitive adhesive sheet exhibiting a 180° peel strength of 1 N/20 mm or greater to stainless steel at 60° C. and having an amount of thermally released gas of 10 μg/cm2 or less, determined at 130° C. for 30 minutes by gas chromatography/mass spectrometry.
Dependencies are inferred from the claim text.