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1. (WO2018038329) FUNCTIONAL BUILDING MATERIAL FOR WINDOWS

Pub. No.:    WO/2018/038329    International Application No.:    PCT/KR2016/014413
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Sat Dec 10 00:59:59 CET 2016
IPC: E06B 3/54
C03C 17/36
H01B 3/10
Applicants: LG HAUSYS, LTD.
(주)엘지하우시스
Inventors: KWON, Dae-Hoon
권대훈
JUN, Youn-Ki
전윤기
PARK, Sung-Jin
박성진
YOU, Hyun-Woo
유현우
CHOI, Young-Woo
최영우
Title: FUNCTIONAL BUILDING MATERIAL FOR WINDOWS
Abstract:
Provided is a matte gray functional building material for windows, comprising: a transparent glass substrate; and a low-emissivity coating formed on one surface of the transparent glass substrate, wherein the low-emissivity coating comprises a lower light-absorbing layer, a light-absorbing metal layer, and a low-emissivity layer, the lower light-absorbing layer comprises chromium nitride and has a color index a* value of -5 to 5 and a color index b* value of -5 to 5, which are measured by means of a colorimeter for visible light transmitting color, the other surface of the transparent glass substrate, on which the low-emissivity coating is not coated, has a color index a* value of -5 to 5, a color index b* of -5 to 5, which are measured by means of a colorimeter for reflected color, and has a visible transmittance of 20-60%, and the visible reflectivity of the other surface of the transparent glass substrate, on which the low-emissivity coating is not coated, is 1-15%.