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Title:
SURFACE PROTECTION FILM
Document Type and Number:
WIPO Patent Application WO/2012/046720
Kind Code:
A1
Abstract:
A surface protection film is provided with a polyolefin base material layer and an adhesive layer, wherein the adhesive layer has a hardness (Martens hardness) of 1-2.5 N/mm2 and a loop tack of 0.02-0.1 N/25mm. Therefore, the surface protection film has easy let-off from the surface of the base material even in the case of rolled products, and further is capable of obtaining sufficient adhesive strength to adherends such as prism sheets, which have projections on the surface thereof.

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Inventors:
KIMURA YOICHIRO (JP)
KITAJIMA TOMOYUKI (JP)
Application Number:
PCT/JP2011/072846
Publication Date:
April 12, 2012
Filing Date:
October 04, 2011
Export Citation:
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Assignee:
IDEMITSU UNITECH CO LTD (JP)
KIMURA YOICHIRO (JP)
KITAJIMA TOMOYUKI (JP)
International Classes:
C09J7/22; C09J7/38; C09J11/08; C09J109/06; C09J123/00; C09J153/02
Foreign References:
JP2010126711A2010-06-10
JP2008297430A2008-12-11
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
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