Kaneka Corporation

Kaneka Corpation

Hiroto Koma

Ryutaro Mukai

Tomohiro Abo

Masahiro Miyamoto

Yusuke Taguchi

Toshifumi Matsumiya

Takahiro Yasumoto

Fumiyasu Ishiguro

Satoko Komatsu

Katsuya Fujisawa

Rika Mori

A hard coat film includes a transparent resin film and a hard coat layer disposed on one surface thereof, the hard coat layer being composed of a cured product of a hard coat composition. The thickness of the hard coat layer 0.15 times or more the thickness of the transparent resin film. The hard coat composition has a negative cure shrinkage ratio. The absolute value of the amount of curl of the hard coat film cut into a 100 mm×100 mm square is 20 mm or less. The hard coat layer may contain a cured product of a polyorganosiloxane compound having an alicyclic epoxy group.

Hardcoat film, method for producing same, and display device

Provided is a polymer material containing at least one kind of a cellulose derivative having (a) an organosilyl group (the organosilyl group having a first aliphatic group, an unsaturated aliphatic group, or an aromatic group), and (b) an acyl group or a second aliphatic group.

Polymer material, film, circular polarizing plate, image display apparatus, and manufacturing method for film

The retardation film according to the present invention is characterized by: including a polymer material that includes at least one cellulose derivative which includes specific monomer units: having an in-plane retardation Re(550) of 105-160 nm, reverse wavelength dispersion property, Re(450)/Re(550), of 0.80-0.89, and a thickness of 20-50 &#x3bc;m; and containing inorganic particles. In particular, the present invention exhibits the effect of reducing the photoelastic coefficient.

Retardation film and utilization thereof

Growing community of inventors

Settsu, Japan

Hiroto Koma