公开(公告)号：US20180081082A1

公开(公告)日：2018-03-22

申请号：US15566960

申请日：2016-04-15

Applicant: KANEKA CORPORATION

Inventor： Hiroto KOMA ,  Ryutaro MUKAI ,  Tomohiro ABO

IPC: G02B1/08 ,  G02B5/30 ,  C08K3/36 ,  C08L1/30 ,  C08J5/18 ,  C08K7/18

CPC classification number: G02B1/08 ,  C08J5/18 ,  C08J2301/28 ,  C08K3/36 ,  C08K7/18 ,  C08K9/06 ,  C08K2201/003 ,  C08K2201/011 ,  C08L1/30 ,  C08L2205/025 ,  G02B5/3083 ,  G02F1/13363 ,  C08L1/32

Abstract: 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 μm; and containing inorganic particles. In particular, the present invention exhibits the effect of reducing the photoelastic coefficient.

公开(公告)号：US20230138855A1

公开(公告)日：2023-05-04

申请号：US17905046

申请日：2021-02-19

Applicant: KANEKA CORPORATION

Inventor： Yusuke TAGUCHI ,  Toshifumi MATSUMIYA ,  Fumiyasu ISHIGURO ,  Rika MORI ,  Satoko KOMATSU ,  Hiroto KOMA ,  Masahiro MIYAMOTO

IPC: C08J7/046 ,  C09D183/06 ,  G09F9/30

Abstract: 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.

公开(公告)号：US20180282438A1

公开(公告)日：2018-10-04

申请号：US15766265

申请日：2016-10-06

Applicant: KANEKA CORPORATION

Inventor： Ryutaro MUKAI ,  Hiroto KOMA ,  Takahiro YASUMOTO ,  Katsuya FUJISAWA ,  Tomohiro ABO

IPC: C08B15/05 ,  C08B3/08 ,  C08J5/18 ,  G02B5/30

Abstract: 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.