US 12,187,643 B2
Getter material, method for manufacturing getter material, method for manufacturing getter-material-containing composition, and method for manufacturing glass panel unit
Hiroyuki Abe, Osaka (JP); Eiichi Uriu, Osaka (JP); Kazuya Hasegawa, Osaka (JP); Tasuku Ishibashi, Ishikawa (JP); Masataka Nonaka, Osaka (JP); Takeshi Shimizu, Osaka (JP); and Haruhiko Ishikawa, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/041,873
Filed by PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
PCT Filed Mar. 15, 2019, PCT No. PCT/JP2019/010874
§ 371(c)(1), (2) Date Sep. 25, 2020,
PCT Pub. No. WO2019/188424, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-069724 (JP), filed on Mar. 30, 2018.
Prior Publication US 2021/0009471 A1, Jan. 14, 2021
Int. Cl. C03C 27/06 (2006.01); B01J 20/00 (2006.01); B01J 20/18 (2006.01); B01J 20/30 (2006.01)
CPC C03C 27/06 (2013.01) [B01J 20/183 (2013.01); B01J 20/3078 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for manufacturing glass panel unit, the method comprising:
a step of producing a getter material including
a step of preparing an unprocessed getter material in which a retention component is held by a getter material body, the retention component being oxygen,
a step of generating the getter material body by heating the unprocessed getter material at a first temperature to vaporize and desorb the retention component from the getter material body,
a step of producing the getter material by causing an adsorption component to be adsorbed on the getter material body, the getter material including the getter material body and the adsorption component adsorbed on the getter material body,
the adsorption component being at least one component selected from the group consisting of nitrogen, hydrogen, carbon dioxide, water, neon, xenon, carbon hydride, and carbon hydride derivative;
a step of producing a preassembled component including
a first glass pane,
a second glass pane facing the first glass pane,
a heat-fusible sealing material disposed between the first glass pane and the second glass pane, being in contact with the first glass pane and the second glass pane, and having a frame shape,
an internal space surrounded by the first glass pane, the second glass pane, and the heat-fusible sealing material having the frame shape,
a gas adsorbent containing the getter material and disposed in the internal space, and
an evacuation port connecting the internal space to an outside space;
a step of forming a frame body by melting the heat-fusible sealing material with heat and then hardening the heat-fusible sealing material to form the frame body, wherein the frame body hermetically bonds the first glass pane and the second glass pane together; and
a step of heating the gas adsorbent at a second temperature lower than the first temperature while the internal space is evacuated by exhausting air in the internal space through the evacuation port.