PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE SHEET, SURFACE PROTECTIVE SHEET, OPTICAL SURFACE PROTECTIVE SHEET, AND OPTICAL FILM WITH SURFACE PROTECTIVE SHEET
申请人:NITTO DENKO CORPORATION
公开号:US20140147668A1
公开(公告)日:2014-05-29
A pressure-sensitive adhesive composition includes: 100 parts by mass of a polymer (A) having a glass transition temperature lower than 0° C.; 0.05 parts by mass to 3 parts by mass of a (meth)acrylic polymer (B) having a weight average molecular weight (MwB) of 1000≦MwB<30000 and including, as a monomer unit, a (meth)acrylic monomer having an alicyclic structure represented by the following general formula (1); 0.005 parts by mass to 1 part by mass of an ionic compound (C); and 0.01 parts by mass to 2.5 parts by mass of a compound (D) having a polyoxyalkylene chain.
CH
2
═C(R
1
)COOR
2
(1)
[wherein R
1
is a hydrogen atom or a methyl group and R
2
is an alicyclic hydrocarbon group having an alicyclic structure.]