| 摘要 |
PURPOSE:To provide an agent for imparting excellent moisture resistance to a resin, and composed of a specific oligomer containing a polyfluoroalkyl group. CONSTITUTION:The improving agent is composed of the homopolymer or copolymerized oligomer of an unsaturated ester having 4-20C polyfluoroalkyl group (preferably acrylate or methacrylate having terminal perfluoroalkyl group) and/or copolymerized oligomer of said unsaturated ester and other copolymerizable compound. The copolymerizable compound is e.g. ethylene, vinyl acetate, etc., and the ratio of the copolymerized monomer to the unsaturated ester is 1- 90wt%, preferably 10-60wt%. 100pts.wt. of a resin is compounded with 0.01- 10pts.wt., preferably 0.1-1.0pts.wt. of the improving agent. |
