- Patent Title: Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive tape, and double-coated pressure-sensitive adhesive tape
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Application No.: US15103574Application Date: 2014-12-17
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Publication No.: US10087345B2Publication Date: 2018-10-02
- Inventor: Akiko Yoshida , Shigeki Ishiguro , Satomi Yoshie
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Knobbe Martens Olson & Bear, LLP
- Priority: JP2013-263918 20131220; JP2014-247970 20141208
- International Application: PCT/JP2014/083402 WO 20141217
- International Announcement: WO2015/093526 WO 20150625
- Main IPC: C09J7/38
- IPC: C09J7/38 ; C09J11/08 ; C09J167/00 ; C09J167/08 ; C09J193/00 ; C09J193/04 ; C09J167/02 ; C08L61/18 ; C08L67/00 ; C08L67/08 ; C08K5/29 ; C08K5/01 ; B32B7/06 ; B32B27/36 ; B32B5/02 ; B32B7/12 ; B32B15/08 ; B32B27/06 ; B32B27/08 ; B32B27/10 ; B32B27/12 ; B32B27/18 ; B32B29/00 ; C08L93/00
Abstract:
A polyester-based pressure-sensitive adhesive layer, pressure-sensitive adhesive tape, and double-coated pressure-sensitive adhesive tape each having high durability (high heating humidification storage stability) and good adhesive properties are provided using a polyester-based pressure-sensitive adhesive composition. The polyester-based pressure-sensitive adhesive composition of the invention includes a polyester, a hydrolysis-resistant agent, a tackifier with an acid value of 8 or less and a softening point of 80 to 170° C., and a crosslinking agent, and contains 20 to 100 parts by weight of the tackifier based on 100 parts by weight of the polyester.
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