Invention Grant
- Patent Title: Surface protective film
- Patent Title (中): 表面保护膜
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Application No.: US13132162Application Date: 2009-11-27
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Publication No.: US08592046B2Publication Date: 2013-11-26
- Inventor: Yoichiro Kimura , Tomoyuki Kitajima
- Applicant: Yoichiro Kimura , Tomoyuki Kitajima
- Applicant Address: JP Tokyo
- Assignee: Idemitsu Unitech Co., Ltd.
- Current Assignee: Idemitsu Unitech Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Millen, White, Zelano & Branigan, P.C.
- Priority: JP2008-306410 20081201
- International Application: PCT/JP2009/070033 WO 20091127
- International Announcement: WO2010/064583 WO 20100610
- Main IPC: B32B27/32
- IPC: B32B27/32 ; B32B27/00 ; B32B27/08 ; B29C47/00
Abstract:
A surface protective film includes: a polyolefin base material layer; and an adhesion layer, in which the adhesion layer includes: a vinyl-polyisoprene-block-containing styrene elastomer; a polyolefin; and a tackifier, and a hardness (Martens hardness) of the adhesion layer is 1.0 N/mm2 or more and 2.5 N/mm2 or less.
Public/Granted literature
- US20110236676A1 SURFACE PROTECTIVE FILM Public/Granted day:2011-09-29
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