公开(公告)号：US20210388549A1

公开(公告)日：2021-12-16

申请号：US17287499

申请日：2019-07-04

Applicant: ENEOS CORPORATION

Inventor： Kousuke YAMAKI ,  Kunio GOTO

IPC: D04H1/74 ,  C08K3/22

Abstract: A sheet-like fiber structure (101) includes a plurality of first resin fibers with a plurality of gap portions, in which the plurality of first resin fibers each contain fine particles of tungsten-based oxide in a dispersed form. The content of the fine particles of tungsten-based oxide is preferably 0.5 wt % or more and 6 wt % or less relative to a total weight of the plurality of first resin fibers. By dispersing, into each of the plurality of first resin fibers that constitute the fiber structure (101), the fine particles of tungsten-based oxide having an optical wavelength-selective reflectivity of transmitting visible light and reflecting infrared light, it is possible to achieve both of high transmittance of visible light and high heat shielding performance.