Title:
SELF-ADHESIVE SURFACE-PROTECTION FILM
Document Type and Number:
WIPO Patent Application WO/2015/194059
Kind Code:
A1
Abstract:
Provided is a self-adhesive surface-protection film which exhibits excellent film processability, with which an end of an adhesive film can be easily grasped and peeled off when peeling the adhesive film from an optical member punched by a die, and with which problems such as partial elongation and deformation of the film do not readily occur even when the adhesive film is stored in a rolled state, and subsequently withdrawn. This self-adhesive surface-protection film is characterized by being obtained by using co-extrusion to stack an adhesive layer on one surface of a base material layer comprising a polypropylene-based resin, and a release layer on the opposite surface of the base material layer. The self-adhesive surface-protection film is further characterized in that: the adhesive film is bonded to an adherend; the peeling strength of an end punched by a chisel is not more than 60 cN/25mm; and the adhesive surface has a peeling force with respect to the release surface of not more than 200 cN/40 mm.
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Inventors:
YAMAMOTO SHIGETOMO (JP)
OGI HIROKAZU (JP)
MATSUDA AKIRA (JP)
OGI HIROKAZU (JP)
MATSUDA AKIRA (JP)
Application Number:
PCT/JP2014/077435
Publication Date:
December 23, 2015
Filing Date:
October 15, 2014
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/00; B32B27/32; C09J7/20; C09J109/06; C09J125/10; C09J153/02
Domestic Patent References:
| WO2014168069A1 | 2014-10-16 | |||
| WO2012073979A1 | 2012-06-07 | |||
| WO2013065579A1 | 2013-05-10 |
Foreign References:
| JP2008265307A | 2008-11-06 | |||
| JPH10176148A | 1998-06-30 | |||
| JP2003064337A | 2003-03-05 | |||
| JP2014148638A | 2014-08-21 |
Other References:
S.O.E SHINKI SUITENKA STYRENE-KEI ELASTOMER, May 2014 (2014-05-01), pages 2 , 9
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