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Patent Searching and Data


Title:
GLASS COMPOSITION, GLASS FIBER, GLASS CLOTH, AND METHOD FOR MANUFACTURING GLASS FIBER
Document Type and Number:
WIPO Patent Application WO/2017/187471
Kind Code:
A1
Abstract:
This glass composition includes, in weight%, 50≤SiO2≤54, 25≤B2O3≤30, 12≤Al2O3≤15, 0.5≤MgO≤1.9, 3.0≤CaO≤5.5, 0≤ZnO≤3.5, 0.1≤Li2O≤0.5, and 0.1≤Na2O≤0.3, and has a dielectric constant of less than 5.0 at a frequency of 1 MHz. This glass composition has a low dielectric constant and is capable of further suppressing occurrence of devitrification and inclusion of air bubbles in a glass fiber or a glass molded body formed from the composition even if the glass fiber formed from the composition has a small fiber diameter or if the glass molded body formed from the composition is thin.

Inventors:
INAKA YOSHIYUKI (JP)
MIYAZAKI TAKAHARU (JP)
NAWA YOSHITO (JP)
NISHINAKA DAISUKE (JP)
SEKIDA TOMOKI (JP)
Application Number:
PCT/JP2016/004785
Publication Date:
November 02, 2017
Filing Date:
November 01, 2016
Export Citation:
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Assignee:
NIPPON SHEET GLASS CO LTD (JP)
UNITIKA LTD (JP)
UNITIKA GLASS FIBER CO LTD (JP)
International Classes:
C03C13/00; C03C3/091; C03C3/093; D01F9/08; D03D15/12
Foreign References:
JPS62226839A1987-10-05
JPH092839A1997-01-07
JPH08333137A1996-12-17
JP2009286686A2009-12-10
JPH10310967A1998-11-24
CN101269915A2008-09-24
Attorney, Agent or Firm:
KAMADA, Koichi (JP)
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