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Title:
GLASS COMPOSITION
Document Type and Number:
Japanese Patent JPS6183647
Kind Code:
A
Abstract:

PURPOSE: A glass composition suitable for molding a glass layer for heat insulation set on an alumina substrate of heat-sensitive recording head, comprising specific glass powder and a specified filler.

CONSTITUTION: A blended raw material having a composition comprising 35W45wt% SiO2, 13W20wt% Al2O3, 10W25wt% BaO, 7W15wt% ZnO, 6W12wt% CaO, 1W5wt% MgO, and 1W5wt% ZrO2 is melted, made into glasses, and ground to give glass powder having about 1W3μ particle diameters. Then, (A) 70W99wt% glass powder is blended with (B) 30W1wt% filler (selected from corundum, α-quartz, zircon). The prepared glass composition is usually blended with an organic binder to give paste, which is used.


Inventors:
Kokubu, Yoshinori
Chiba, Jiro
Nakayama, Takahiro
Application Number:
JP1984000200428
Publication Date:
April 28, 1986
Filing Date:
September 27, 1984
Export Citation:
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Assignee:
ASAHI GLASS CO LTD
International Classes:
C03C3/062; B41J2/335; C03C3/085; C03C3/087; C03C4/00; C03C8/24; (IPC1-7): B41J3/20; C03C3/062; C03C3/085; C03C4/00; C03C8/24



 
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