{
  "$type": "site.standard.document",
  "description": "By mole percent of oxides, this alkali-free glass contains 57-70% SiO2, 5-15% Al2O3, 15-24% B2O3, 0.2-10% MgO, 0.1-7% CaO, 0.1-2.5% SrO, 0-10% BaO and 0-0.1% ZnO, and the value of expression (A) represented by [Al2O3]/[B2O3] is greater than 0.35 and less than or equal to 1.4.",
  "path": "/patents/1413046",
  "publishedAt": "2024-03-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60J1/001",
    "AGC INC [JP]"
  ],
  "textContent": "By mole percent of oxides, this alkali-free glass contains 57-70% SiO2, 5-15% Al2O3, 15-24% B2O3, 0.2-10% MgO, 0.1-7% CaO, 0.1-2.5% SrO, 0-10% BaO and 0-0.1% ZnO, and the value of expression (A) represented by [Al2O3]/[B2O3] is greater than 0.35 and less than or equal to 1.4.",
  "title": "ALKALI-FREE GLASS AND GLASS PLATE"
}