| 摘要 |
<p>Disclosed is a composition for antireflective coating, which enables to form an antireflection film having low refractive index without using a PFOS and PFOA having 7 or more carbon atoms. This composition for antireflective coating has low surface tension and excellent coatability. Specifically disclosed is a composition for antireflective coating, which contains a fluorine-containing surface active agent (A) composed of a compound (A1) represented by the general formula (I) below, a water-soluble polymer (B) and an aqueous medium (C). R<SUP>1</SUP>-O-(R<SUP>2</SUP>-O)<SUB>n</SUB>-R<SUP>3</SUP>-X<SUP>1</SUP> (I) (In the formula, R<SUP>1</SUP> represents a linear or branched perfluoroalkyl group wherein a fluorine atom at an end may be substituted by a hydrogen atom or a chlorine atom; R<SUP>2</SUP> and R<SUP>3</SUP> independently represent a linear or branched perfluoroalkylene group; the total number of carbon atoms of R<SUP>1</SUP>, R<SUP>2</SUP> and R<SUP>3</SUP> is 5 or less; n represents 0 or an integer of not less than 1; and X<SUP>1</SUP> represents -COOH or -C(CF<SUB>2</SUB>Z<SUP>1</SUP>)(CF<SUB>2</SUB>Z<SUP>2</SUP>)OH which may form a salt. In this connection, Z<SUP>1</SUP> and Z<SUP>2</SUP> respectively represent a hydrogen atom, a fluorine atom, a chlorine atom or a trifluoromethyl group.)</p> |
