Composite powder, composite powder paste, and glass plate with colored layer

Patent metadata

Field	Value
Publication number	US-2016122231-A1
Application number	US-201414892358-A
Country	US
Kind code	A1
Filing date	May 26, 2014
Priority date	May 28, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

A composite powder of the present invention includes 55 mass % to 95 mass % of glass powder, 5 mass % to 45 mass % of inorganic pigment powder, and 0 mass % to 20 mass % of refractory filler powder, in which the glass powder includes as a glass composition, in terms of mass %, 35% to 55% of SiO 2 , 5% to 20% of B 2 O 3 , 0% to 10% of Al 2 O 3 , 5% to 30% of ZnO, 2% to 18% of Li 2 O+Na 2 O+K 2 O, 0% to 12% of BaO, 1% to 13% of TiO 2 +ZrO 2 , and 0% to 12% of CuO.

First claim

1 . A composite powder, comprising 55 mass % to 95 mass % of glass powder, 5 mass % to 45 mass % of inorganic pigment powder, and 0 mass % to 20 mass % of refractory filler powder,
wherein the glass powder comprises as a glass composition, in terms of mass %, 35% to 55% of SiO 2 , 5% to 20% of B 2 O 3 , 0% to 10% of Al 2 O 3 , 5% to 30% of ZnO, 2% to 18% of Li 2 O+Na 2 O+K 2 O, 0% to 12% of BaO, 1% to 13% of TiO 2 +ZrO 2 , and 0% to 12% of CuO.

2 . The composite powder according to claim 1 , wherein a content of B 2 O 3 +ZnO in the glass powder is from 25% to 40%.

3 . The composite powder according to claim 1 , wherein a content of Li 2 O+Na 2 O+K 2 O in the glass powder is from 5% to less than 13%.

4 . The composite powder according to claim 1 , wherein the glass powder has a mass ratio SiO 2 /(B 2 O 3 +ZnO) of from more than 1 to less than 1.8.

5 . The composite powder according to claim 1 , wherein a content of BaO in the glass powder is from 0.1% to 8%.

6 . The composite powder according to claim 1 , wherein a content of Al 2 O 3 in the glass powder is from 0.1% to less than 5%.

7 . The composite powder according to claim 1 , wherein a content of CuO in the glass powder is from 0.1% to 8%.

8 . The composite powder according to claim 1 , wherein the glass powder is substantially free of PbO and Bi 2 O 3 .

9 . The composite powder according to claim 1 , wherein the inorganic pigment powder comprises a Cr-based composite oxide.

10 . The composite powder according to claim 1 , comprising 55 mass % to 85 mass % of the glass powder, 15 mass % to 45 mass % of the inorganic pigment powder, and 0 mass % to 10 mass % of the refractory filler powder.

11 . A composite powder paste, comprising a composite powder and a vehicle,
wherein the composite powder comprises the composite powder of claim 1 .

12 . A glass sheet with a colored layer, comprising a colored layer, wherein:
the colored layer comprises a sintered compact of a composite powder; and the composite powder comprises the composite powder of claim 1 .

13 . The glass sheet with a colored layer according to claim 12 , wherein the glass sheet comprises a soda lime glass sheet.

Assignees

• Nippon Electric Glass Co

Inventors

• Ishihara Kentaro
• Kitamura Yoshiro

Classifications

• C03C8/16

  with vehicle or suspending agents, e.g. slip · CPC title

• C03C2217/485

  Pigments · CPC title

• C03C3/093

  containing zinc or zirconium · CPC title

• C03C17/04

  by fritting glass powder · CPC title

• C03C3/066

  containing zinc · CPC title