| abstract |
The present invention is a film-forming composition comprising a polymer obtained by polymerizing: (A) 5-80 mass% of a silicone resin which has R 3 SiO 1/2 , R 2 R'SiO 1/2 , and SiO 2 units (where R, which may be the same as or different from each other, represents a monovalent hydrocarbon group having 1-6 carbon atoms, and R' represents a -C 3 H 6 SH group), in which the total amount of the R 3 SiO 1/2 , R 2 R'SiO 1/2 , and SiO 2 units of all the structural units is 80 mol% or more, and which has a molar ratio expressed by (the sum of R 3 SiO 1/2 unit and R 2 R'SiO 1/2 unit)/(SiO 2 unit) in a range of 0.5-1.5; and (B) 20-95 mass% of at least one radically polymerizable compound, wherein said (B) component includes at least one radically polymerizable monomer (B-1) which does not include the SiO unit in the structure thereof. Therefore, said film-forming composition is capable of forming a transparent film which has excellent adhesiveness, and does not exhibit stickiness or secondary adhesion. |