Invention Grant
- Patent Title: Adhesive sheet and method for manufacturing adhesive sheets
- Patent Title (中): 粘合片和粘合片的制造方法
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Application No.: US13383755Application Date: 2010-07-09
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Publication No.: US09011624B2Publication Date: 2015-04-21
- Inventor: Ryoji Furutani , Takahiro Tokuyasu , Shinya Katou , Rie Katou , Tomohito Yuasa , Kouji Komorida , Tatsuya Sakuta
- Applicant: Ryoji Furutani , Takahiro Tokuyasu , Shinya Katou , Rie Katou , Tomohito Yuasa , Kouji Komorida , Tatsuya Sakuta
- Applicant Address: JP Tokyo
- Assignee: Hitachi Chemical Company, Ltd.
- Current Assignee: Hitachi Chemical Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JPP2009-165709 20090714
- International Application: PCT/JP2010/061709 WO 20100709
- International Announcement: WO2011/007732 WO 20110120
- Main IPC: B29C65/52
- IPC: B29C65/52 ; B32B37/12 ; B32B37/26 ; B32B38/10 ; B32B38/04 ; C09J7/02
Abstract:
A method for manufacturing an adhesive sheet according to the present invention is a method for manufacturing an adhesive sheet including a long peeling base material 1 and an adhesive layer 2 provided on the peeling base material 1 in the form of an island, the method including a peeling step of, after laminating a long adhesive layer 2 on the peeling base material 1, peeling off an unnecessary portion 6 of the adhesive layer 2 so that a predetermined portion of the adhesive layer is left on the peeling base material 1 in the form of an island, wherein, in the peeling step, the width W of a narrow portion 8, which is the narrowest in width in a short direction of the unnecessary portion 6 of the adhesive layer 2, is adjusted so that the breaking strength in the narrow portion 8 is 200 g or more.
Public/Granted literature
- US20120171475A1 ADHESIVE SHEET AND METHOD FOR MANUFACTURING ADHESIVE SHEETS Public/Granted day:2012-07-05
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