公开(公告)号：US20190054674A1

公开(公告)日：2019-02-21

申请号：US16080783

申请日：2017-03-02

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC. ,  MGC FILSHEET CO., LTD.

发明人： Hirokazu TAKENAKA ,  Yasuo OOSE ,  Takuya GOTO

IPC分类号： B29C47/06 ,  B32B27/30 ,  B32B27/36 ,  C08L25/08 ,  C08L33/06 ,  C08L69/00 ,  G02B1/14 ,  G02F1/1335

摘要： A front panel for on-board liquid crystal displays has a high hardness resin composition (B) on at least one side of a layer containing a resin (A) having a polycarbonate resin (a1). The front panel satisfies the following conditions (i) to (iv): (i) the thickness of the layer containing a high hardness resin composition (B) is 10 to 250 μm, and the total thickness of the layer containing a resin (A) comprising a polycarbonate resin (a1) and the layer containing a high hardness resin composition (B) is 100 to 3,000 μm; (ii) the high hardness resin composition (B) consists of any one of specific resin compositions (B1) to (B3); (iii) the retardation of the front panel is 3,000 nm or more; and (iv) the standard deviation of the second derivative of the irregular shape of the hard coat layer having irregularities is 0.1 or more.

公开(公告)号：US20210016485A1

公开(公告)日：2021-01-21

申请号：US16928409

申请日：2020-07-14

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC. ,  MGC FILSHEET CO., LTD.

发明人： Hirokazu TAKENAKA ,  Yasuo OOSE ,  Takuya GOTO

IPC分类号： B29C48/18 ,  B32B27/30 ,  B32B27/36 ,  C08L25/08 ,  C08L69/00 ,  G02B1/14 ,  B32B27/08 ,  G02F1/1335

摘要： A front panel for on-board liquid crystal displays has a high hardness resin composition (B) on at least one side of a layer containing a resin (A) having a polycarbonate resin (a1). The front panel satisfies the following conditions (i) to (iv): (i) the thickness of the layer containing a high hardness resin composition (B) is 10 to 250 μm, and the total thickness of the layer containing a resin (A) comprising a polycarbonate resin (a1) and the layer containing a high hardness resin composition (B) is 100 to 3,000 μm; (ii) the high hardness resin composition (B) consists of any one of specific resin compositions (B1) to (B3); (iii) the retardation of the front panel is 3,000 nm or more; and (iv) the standard deviation of the second derivative of the irregular shape of the hard coat layer having irregularities is 0.1 or more.