View source for 18814160. ALKALI-FREE GLASS AND GLASS SHEET (AGC Inc.)

=ALKALI-FREE GLASS AND GLASS SHEET=


==Organization Name==

[[:Category:AGC Inc.|AGC Inc.]]


[[Category:AGC Inc.]]

==Inventor(s)==

[[:Category:Yuya Hamada of Tokyo (JP)|Yuya Hamada of Tokyo (JP)]][[Category:Yuya Hamada of Tokyo (JP)]]

[[:Category:Hirofumi Tokunaga of Tokyo (JP)|Hirofumi Tokunaga of Tokyo (JP)]][[Category:Hirofumi Tokunaga of Tokyo (JP)]]

==ALKALI-FREE GLASS AND GLASS SHEET==


This abstract first appeared for US patent application 18814160 titled 'ALKALI-FREE GLASS AND GLASS SHEET




==Original Abstract Submitted==

An alkali-free glass, includes, as represented by mol % based on oxides: 50% to 76% of SiO; 2% to 6% of AlO; 18% to 35% of BO; 1% to 3.5% of MgO; 0.5% to 4% of CaO; 1% to 4.5% of SrO; and 0% to 3% of BaO, in which an expression (A) is [MgO]+[CaO]+[SrO]+[BaO], and a value of the expression (A) is 3.5 to 6, an expression (B) is [AlO]—([MgO]+[CaO]+[SrO]+[BaO]), and a value of the expression (B) is −2 to 2, an expression (J) is ([MgO]+[CaO])/([MgO]+[CaO]+[SrO]+[BaO]), and a value of the expression (J) is 0.2 to 0.7, and Δβ-OH is 0 mmto 0.1 mm.



[[Category:C03C3/093]]
[[Category:C03B5/225]]
[[Category:C03B19/02]]
[[Category:C03B25/04]]
[[Category:C03C3/091]]
[[Category:C03C3/095]]
[[Category:CPC_C03C3/093]]