申请人:Nakamura Akitake
                            
                            
                                公开号:US20140121293A1
                            
                            
                                公开(公告)日:2014-05-01
                            
                            Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.