公开(公告)号：US11433641B2

公开(公告)日：2022-09-06

申请号：US17008957

申请日：2020-09-01

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Chun-Che Tsao ,  Jhen-Rong Syu

IPC: B32B7/02 ,  B32B27/08

Abstract: An electronic device case and a decorative film thereof are provided. The decorative film includes a plurality of stacked optical layers. Each of the plurality of stacked optical layers includes a first optical layer, a second optical layer formed on the first optical layer, a third optical layer formed on the second optical layer, and a fourth optical layer formed on the third optical layer. The refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer vary according to a predetermined rule, and the refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer are all between 1.40 and 1.70. The first optical layer and the third optical layer have different refractive indices, and the second optical layer and the fourth optical layer have the same refractive index.

公开(公告)号：US20210332201A1

公开(公告)日：2021-10-28

申请号：US17203755

申请日：2021-03-17

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Wen-Cheng Yang ,  Te-Chao Liao ,  Chia-Yen Hsiao ,  Chun-Che Tsao

IPC: C08J5/18 ,  C08K7/18 ,  C08K9/06 ,  C08K3/36 ,  C08K3/30 ,  C08K3/22 ,  C08L67/02

Abstract: A biaxially-stretched polyester film and a method for producing the same are provided. The biaxially-stretched polyester film includes a polyester resin matrix and spherical smoothing agents dispersed therein. The polyester resin matrix has a refractive index within a range from 1.5 to 1.7. The spherical smoothing agents each have a refractive index within a range from 1.3 to 1.9, a particle size within a range from 30 nm to 5 μm, and a circularity not less than 0.6. Based on 100 parts by weight of the biaxially-stretched polyester film, a content range of the polyester resin matrix is from 50 to 99.999 parts by weight, and a content range of the spherical smoothing agents is from 0.0001 to 10 parts by weight. The biaxially-stretched polyester film has a haze not greater than 2% and a transparency not less than 85%.

公开(公告)号：US11021603B2

公开(公告)日：2021-06-01

申请号：US16238661

申请日：2019-01-03

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Wen-Cheng Yang ,  Chun-Che Tsao ,  Chia-Yen Hsiao ,  Chih-Feng Wang

IPC: B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/32 ,  B32B27/36 ,  B32B3/26 ,  C08F8/00 ,  C08F8/06 ,  C08K3/013 ,  C08K3/22 ,  C08K3/26 ,  C08K3/30 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/26 ,  C08L23/30 ,  C08L67/00 ,  C08L67/03 ,  C08J5/18

Abstract: A white polyester film with a specific weight of 0.6-1.2 has a three-layered structure containing two outer layers (A) having a combined thickness taking up 2% to 30% of an overall thickness of the film and a middle layer (B), and having air-bubble cells in both the outer layers (A) and the middle layer (B). The outer layers (A) are formed from a polyester resin and inorganic particles. The middle layer (B) is formed of a polyester resin, modified polypropylene resin having a heat distortion temperature above 120° C. and a melt flow index (MI) of 0.2-1 g/10 minutes (at 230° C., with a load of 2.16 kg) via crosslinking with 0.1-3 wt % of peroxide with respect to the weight of the polypropylene resin, and inorganic particles.