SURFACE PROTECTION FILM

WIPO Patent Application WO/2011/122287

A1

Provided is a surface protection film which exerts appropriate adhesive properties even to an adherend having a rough surface and which exhibits excellent back surface slidability, blocking resistance, and reeling properties. Specifically, disclosed is a surface protection film which has a laminate structure comprising at least an adhesive layer and a back surface layer, wherein: the adhesive layer is mainly formed from a styrene-based elastomer; the back surface layer is mainly formed from a propylene-based resin containing 0.5 weight% to 10 weight% of a fluorine-containing compound having a polyfluoro-hydrocarbon group and a polyoxyethylene group, and has a 10-point average surface roughness (Rz) of 3µm or more; and the surface protection film has an initial adhesion strength of 1N/25mm or more in relation to a SUS304 plate, which was subjected to a #320 hair-line processing treatment, and has a reeling strength of 0.5N/25mm or less when the rolled-up film is being reeled.

NAGAE YOSHIKAZU (JP)
SATOU JUNYA (JP)
IMAI SHIRO (JP)

PCT/JP2011/055625

October 06, 2011

March 10, 2011

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TORAY ADVANCED FILM CO LTD (JP)
NAGAE YOSHIKAZU (JP)
SATOU JUNYA (JP)
IMAI SHIRO (JP)

B32B27/30; B32B27/32; C09J7/29; C09J109/06; C09J123/08

JP2008127447A	2008-06-05
JP2007253435A	2007-10-04
JP2008297430A	2008-12-11
JPH09157598A	1997-06-17
JPH0925466A	1997-01-28
JP2008081589A	2008-04-10
JP2002001883A	2002-01-08
JPH11307620A	1999-11-05
JPS61103975A	1986-05-22
JPH02252777A	1990-10-11
JP2000345125A	2000-12-12
JPH07241960A	1995-09-19
JPH10176145A	1998-06-30
JP2007253435A	2007-10-04
JP2008081589A	2008-04-10

YOSHIZAWA, HIROAKI (JP)
Hiroaki Yoshizawa (JP)

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