{
  "$type": "site.standard.document",
  "description": "Disclosed is a sealing glass composition that turns, when fired at a temperature of 900-1150 ° C., into a crystallized glass having a thermal expansion coefficient of 80-110×10/° C. in the range of 50-850° C. The composition is substantially free of both boron oxide and barium oxide, and comprises…",
  "path": "/patents/1254654",
  "publishedAt": "2020-02-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C03C8/24",
    "NIHON YAMAMURA GLASS CO., LTD."
  ],
  "textContent": "Disclosed is a sealing glass composition that turns, when fired at a temperature of 900-1150 ° C., into a crystallized glass having a thermal expansion coefficient of 80-110×10/° C. in the range of 50-850° C. The composition is substantially free of both boron oxide and barium oxide, and comprises SiO: 43-53 mol %, CaO: 12-33 mol %, MgO: 12-33 mol %, LaO: 1-7 mol %, and ZnO: 0-4.5 mol %.",
  "title": "CRYSTALLIZED GLASS SEALING MATERIAL"
}