发明名称 SURFACE PROTECTIVE FILM, OPTICAL MEMBER, AND ELECTRONIC MEMBER
摘要 Provided is a surface protective film that uses a polyurethane-based resin in a pressure-sensitive adhesive layer, the surface protective film being able to achieve both of low contamination property and adhesive residue reduction, and having excellent reworkability, wettability, and transparency as well. Also provided are an optical member and an electronic member each having attached thereto such surface protective film. The surface protective film includes: a backing layer; and a pressure-sensitive adhesive layer, in which: the pressure-sensitive adhesive layer includes a polyurethane-based resin; the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition including a polyol (A) having at least two OH groups and a polyfunctional isocyanate compound (B); and (1) the polyol (A) includes 50 wt % or more of a polyol having two OH groups and a number-average molecular weight Mn of 3,000 to 6,000, or (2) the polyfunctional isocyanate compound (B) includes a polyfunctional aromatic isocyanate compound.
申请公布号 US2014037949(A1) 申请公布日期 2014.02.06
申请号 US201313954640 申请日期 2013.07.30
申请人 NITTO DENKO CORPORATION 发明人 JO SOUYA;SASAKI SHOGO;ISEKI TORU;ANDO MASAHIKO
分类号 C09J7/02 主分类号 C09J7/02
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