IP Library › Granted Patent US 10,233,110
Granted Patent B2
US 10,233,110 · App. 15/177,912 · Granted Mar 19, 2019

Material set for manufacturing glass object, liquid material for manufacturing glass object, method of manufacturing glass object, glass object, and device for manufacturing glass object

Inventors: Takeo Yamaguchi (Kanagawa, JP); Hitoshi Iwatsuki (Shizuoka, JP); Kazumi Ohtaki (Shizuoka, JP); Takuya Saito (Kanagawa, JP); Teruki Kusahara (Shizuoka, JP)
Assignee: Ricoh Company, Ltd.
C03B19/06B22F3/008B29C64/165B33Y70/00C03C3/085C03C17/32C08L29/04C08L39/06C09D139/06B33Y10/00B33Y30/00B33Y80/00
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Quick Facts
Patent No.
US 10,233,110
App. No.
15/177,912
Granted
Mar 19, 2019
Kind
B2
Abstract

A material set for manufacturing a glass object includes a powder material including glass and a first water soluble resin; and a liquid material including water and a second water soluble resin having a mass average molecular weight of less than 50,000.

Claims (24)

1. A material set for manufacturing a glass object, the material set comprising:

a powder material including glass and a first water soluble resin; and

a liquid material including water and a second water soluble resin that includes polyvinyl pyrrolidone and has a mass average molecular weight of less than 50,000.

2. The material set according to claim 1 , wherein the first water soluble resin and the second water soluble resin are different from each other.

3. The material set according to claim 1 , wherein the second water soluble resin accounts for less than 5 percent by mass of the liquid material.

4. The material set according to claim 1 , wherein the first water soluble resin includes a modified polyvinyl alcohol.

5. The material set according to claim 1 , further comprising a cross-linking agent.

6. The material set according to claim 1 , further comprising a hydrophilic organic solvent, the hydrophilic organic solvent accounting for less than 20 percent by mass of the liquid material.

7. The material set according to claim 1 , wherein a viscosity of the liquid material at 25 degrees C is 20 mPa·s or less.

8. The material set according to claim 1 , wherein a viscosity change rate of the material set between before and after the material set is left undone at 50 degrees C for three days is less than 20 percent by mass.

9. The material set according to claim 1 , wherein a volume average primary particle diameter of the powder material is less than 3 μm.

10. The material set according to claim 1 , further comprising a sintering helping agent in the powder material or the liquid material.

11. A liquid material for manufacturing a glass object for curing glass, the liquid material comprising:

water; and

a second water soluble resin that includes polyvinyl pyrrolidone and has a mass average molecular weight of less than 50,000.

12. A method of manufacturing a glass object, the method comprising:

supplying a powder material including glass and a first water soluble resin;

applying the liquid material of claim 11 to the powder material; and

repeating the supplying and the applying.

13. A device for manufacturing a glass object, the device comprising:

a supplying device to supply a powder material including glass and a first water soluble resin;

an applying device to apply the liquid material of claim 11 to the powder material;

a powder material accommodating unit to accommodate the powder material; and

a liquid material accommodating unit to accommodate the liquid material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2016
From: YAMAGUCHI, TAKEO; IWATSUKI, HITOSHI; OHTAKI, KAZUMI; SAITO, TAKUYA; KUSAHARA, TERUKI
To: RICOH COMPANY, LTD.
Reel/Frame 038861/0581 →
Priority Claims (2)
JP 2015-124874 · Jun 22, 2015 · national
JP 2016-092493 · May 2, 2016 · national
Continuity (1)
Related Publication 20160368806A1 · Dec 22, 2016