公开(公告)号：US12117632B2

公开(公告)日：2024-10-15

申请号：US17273486

申请日：2019-09-04

Applicant: Toray Industries, Inc.

Inventor： Hisato Matsui ,  Yuji Matsuo ,  Wataru Gouda

IPC: G02B5/26 ,  B32B7/023 ,  B32B27/08 ,  B32B27/36

CPC classification number: G02B5/26 ,  B32B7/023 ,  B32B27/08 ,  B32B27/36 ,  B32B2250/05 ,  B32B2250/244 ,  B32B2270/00 ,  B32B2307/418 ,  B32B2307/516

Abstract: The laminate film is a laminate including 51 or more layers in which an A layer mainly composed of a thermoplastic resin A and a B layer mainly composed of a thermoplastic resin B, which is different from the thermoplastic resin A, are alternately laminated. A transmission spectrum X is obtained by exposing the film to linear polarized light (X wave) that oscillates in the alignment direction of the film over a range of wavelengths from 300 to 900 nm. A transmission spectrum Y is obtained by exposing the film to linear polarized light (Y wave) that oscillates in the direction perpendicular to the alignment direction of the film over a range of wavelengths from 300 to 900 nm. The area Amax (nm·%) of the largest region among regions enclosed by the transmission spectrum X and the transmission spectrum Y is 150 to 1500.

公开(公告)号：US20220408618A1

公开(公告)日：2022-12-22

申请号：US17777171

申请日：2020-11-11

Applicant: Toray Industries, Inc.

Inventor： Hisato Matsui ,  Hideaki Toyama ,  Wataru Gouda

IPC: H05K9/00 ,  B32B7/025 ,  B32B27/20 ,  B32B25/04 ,  B32B25/16 ,  B32B27/32 ,  B32B27/08 ,  B32B7/12 ,  B32B27/36

Abstract: The present invention aims to provide a multi-layer sheet with excellent electromagnetic wave shielding properties. The multi-layer sheet includes an alternating multilayer unit with five or more A layer and B layer alternately laminated, in which the electromagnetic return loss at the peak top in the peak of return loss spectrum with the highest return loss at the peak top is 5 dB or more in a chart of the return loss in the multi-layer sheet.

公开(公告)号：US12185518B2

公开(公告)日：2024-12-31

申请号：US17777171

申请日：2020-11-11

Applicant: Toray Industries, Inc.

Inventor： Hisato Matsui ,  Hideaki Toyama ,  Wataru Gouda

IPC: H05K9/00 ,  B32B7/025 ,  B32B7/12 ,  B32B25/04 ,  B32B25/16 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B27/36

Abstract: The present invention aims to provide a multi-layer sheet with excellent electromagnetic wave shielding properties. The multi-layer sheet includes an alternating multilayer unit with five or more A layer and B layer alternately laminated, in which the electromagnetic return loss at the peak top in the peak of return loss spectrum with the highest return loss at the peak top is 5 dB or more in a chart of the return loss in the multi-layer sheet.

公开(公告)号：US20240359387A1

公开(公告)日：2024-10-31

申请号：US18685976

申请日：2022-08-31

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hisato Matsui ,  Mayumi Tamura ,  Takayuki Uto ,  Wataru Gouda

IPC: B29C48/21

CPC classification number: B29C48/21 ,  B29K2995/003 ,  B29K2995/005 ,  B29K2995/0097 ,  B29K2995/0098

Abstract: The present invention addresses the problem of providing a laminated film that has further uniform properties regarding optical characteristics and the like, and that can maintain said properties for a further extended period of time. This laminated film is characterized by comprising two or more different types of thermoplastic resin layers and is characterized in that, when ratios of interface layer thicknesses analyzed through GCIB-TOF-SIMS with respect to the film thickness are calculated in all types of interfaces formed by the different thermoplastic resin layers, the lowest value thereof is 1.0×10−4−1.0×10−2.