| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy beam-hardenable silicone separating agent which has hardenability or the like, has low viscosity and is excellent in thin film-paintability and to provide a separator using it. SOLUTION: This separating agent contains a polyorganosiloxane having a cyclic ether group of the average unit formula: (R<SB>1</SB>)<SB>m</SB>(R<SB>2</SB>)<SB>n</SB>SiO<SB>(4-m-n)/2</SB>(wherein R<SB>1</SB>is a monovalent hydrocarbon group having no cation ring-opening polymerizable group; R<SB>2</SB>is an alkyl group to which a cyclic ether group having a cation ring-opening polymerizable group is attached; n is 0.0004-1.0; m+n is 1.2-2.2; this molecule has at least two cation ring-opening polymerizable groups in the molecule; and the number of silicon atoms is 10-1,000), a mono-functional oxetane monomer of formula (2), a cationic polymerization initiator and a radical polymerization initiator. COPYRIGHT: (C)2005,JPO&NCIPI
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