| 摘要 |
PROBLEM TO BE SOLVED: To provide an antireflection film comprising an optical multilayer film using titanium oxide for a high refractive index coating film and having sufficient film strength and interlayer adhesiveness. SOLUTION: A coating composition prepared by mixing a titan alkoxide monomer or polymer with an organic coordinate which can form a seven or eight-member cyclic chelate with a metal is applied on a base film to form a high refractive index coating layer. The coating composition comprises a compound expressed by general formula of Ti<SB>m</SB>(OR<SP>1</SP>)<SB>2m+2</SB>, wherein R<SP>1</SP>represents a 1-5C alkyl group and m represents an integer of≥1, a compound expressed by general formula (2): R<SP>2</SP>-R<SP>3</SP>-C<SB>n</SB>H<SB>2n</SB>-R<SP>4</SP>-R<SP>5</SP>or its derivative, wherein each of R<SP>2</SP>and R<SP>5</SP>represents a hydrogen atom, a hydroxyl group, a 1-5C alkyl group or the like, each of R<SP>3</SP>and R<SP>4</SP>represents =CO or the like and n represents an integer of 2 or 3, and an organic solvent. COPYRIGHT: (C)2003,JPO
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