| 摘要 |
PROBLEM TO BE SOLVED: To obtain a release treatment agent having an excellent heat resistance, wherein the stripping power hardly decreases even if the agent is left at a high temperature and the agent does not easily migrate into an adhesive layer. SOLUTION: This release treatment agent comprises a vinyl-based polymer (A) consisting of a major unit, of a long chain alkyl(meth)acrylate ester unit represented by formula (I), wherein Mw is 10,000-800,000 and Mw/Mn is≤4.5. In formula (I), R<SP>1</SP>is hydrogen atom or methyl group and R<SP>2</SP>is a long chain alkyl group having at least 12C. COPYRIGHT: (C)2005,JPO&NCIPI
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