Invention Grant
- Patent Title: Pressure-sensitive adhesive sheet and magnetic disc device
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Application No.: US16355921Application Date: 2019-03-18
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Publication No.: US10647891B2Publication Date: 2020-05-12
- Inventor: Kenji Furuta , Akira Hirao , Tatsuya Suzuki
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Hauptman Ham, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6d78df16
- Main IPC: G11B5/012
- IPC: G11B5/012 ; C09J7/38 ; G11B21/10 ; C09J7/20
Abstract:
Provided is a PSA sheet that has a high level of moisture resistance while maintaining good holding power with reduced gas emission. The PSA sheet provided by this invention comprises a moisture-impermeable layer and a PSA layer provided to one face of the moisture-impermeable layer. The PSA layer comprises a polymer A having a weight average molecular weight of 5×104 or higher as a base polymer and a polymer B having a number average molecular weight of 1000 or higher and a weight average molecular weight lower than 5×104.
Public/Granted literature
- US20190284445A1 Pressure-Sensitive Adhesive Sheet and Magnetic Disc Device Public/Granted day:2019-09-19
Information query
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