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1. (WO2017034381) GLASS BEAD COMPOSITION HAVING REFRACTIVE INDEX OBTAINED BY USING GLASS PIECES AS FLUXES, AND GLASS BEADS HAVING REFRACTIVE INDEX OBTAINED BY USING COARSE GLASS POWDER OF GLASS COMPOSITION

Pub. No.:    WO/2017/034381    International Application No.:    PCT/KR2016/009557
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 27 01:59:59 CEST 2016
IPC: C03C 3/062
C03C 12/02
C03C 4/00
G02B 5/12
Applicants: GB TECH CO., LTD.
주식회사 지비테크
CERA CO., LTD.
세라 주식회사
Inventors: KIM, Jin Ho
김진호
NOH, Seung Il
노승일
Title: GLASS BEAD COMPOSITION HAVING REFRACTIVE INDEX OBTAINED BY USING GLASS PIECES AS FLUXES, AND GLASS BEADS HAVING REFRACTIVE INDEX OBTAINED BY USING COARSE GLASS POWDER OF GLASS COMPOSITION
Abstract:
The present invention relates to a glass composition, which has a refractive index obtained by using glass pieces, also known as glass cullet, as fluxes, and glass beads and specifically to: a glass bead composition which has a refractive index obtained by using glass pieces as fluxes, has high transparency, maintains high retroreflectivity even under a humid condition as well as a dry condition, and particularly has a higher refractive index (nd: 1.6-2.2) than glass beads which have a refractive index of approximately 1.5 and are produced using conventional recycled soda-lime-based coarse glass pieces; and glass beads having a refractive index obtained by using a coarse glass powder of the glass composition.