There is provided a composition for forming a hard coat layer which has high slippage and is excellent in water/oil repellency and also has antifouling properties such as fingerprint resistance and dirt wiping-off properties, and which is curable through ultraviolet irradiation in a nitrogen atmosphere or an air atmosphere that is generally used. A silicon-containing highly branched polymer obtained by polymerization of a monomer A having two or more radically polymerizable double bonds in a molecule and a monomer B having a polysiloxane chain and at least one radically polymerizable double bond in a molecule in the presence of a polymerization initiator D in an amount of 5 to 200% by mole relative to the number of moles of the monomer A; a curable composition comprising the highly branched polymer; a cured film obtained from the composition; and a hard coat film obtained by use of the composition.
本发明提供了一种用于形成硬涂层的组合物,该硬涂层具有高滑动性和优异的拒
水/拒油性,同时还具有防污性能,如抗指纹性和污垢擦除性,并且可在氮气环境或通常使用的空气环境中通过紫外线照射固化。一种含
硅的高支化聚合物,由分子中具有两个或两个以上可辐射聚合双键的单体 A 和分子中具有聚
硅氧烷链和至少一个可辐射聚合双键的单体 B 在聚合
引发剂 D 的存在下,以相对于单体 A 的摩尔数 5%至 200%(以摩尔计)的量聚合而成;一种可固化组合物,包含该高支化聚合物;一种由该组合物制成的固化膜;以及一种通过使用该组合物制成的硬质涂膜。