Low refractive index film, antireflection method and antireflective article

Abstract

Abstract PROBLEM TO BE SOLVED: To obtain a low-refractive index film for preventing reflection of light which is easily formable at a low refractive index by incorporating a specific perfluoroic compd. and a compd. having a mol.wt. of at least twice the mol.wt. of the perfluoroic compd. into the film. SOLUTION: This film contains the perfluoroic compd. A which consists of 1 to 14C fluorine-contained org. compd. residue (R) and 2 to 4 molecules of an org. compd. (P) capable of forming a polymerizable terminal group within the molecule by conjugation with (R), contains at least two pieces of the polymerizable terminal groups within one molecule and is expressed by formula and the compd. B which has the mol.wt. of at least twice the mol.wt. of the perfluoroic compd. A. In the formula, (n) denotes an integer of any of 2 to 4. The perfluoroic compd. A having a (meth)acryloyl group and/or epoxy group in the polymerizable terminal group is preferable. A polymer of a monofunctional (meth)acrylate compd. is optimum as the compd. B.

Inventors

• 👤 Koichiro Oka
• 👤 紘一郎 岡
• 👤 Akitoshi Nakakimura
• 👤 暁利 中木村
• 👤 Mikio Shin
• 👤 幹雄 新

Bibliographic Details