	US 12,109,780 B2
	Carrier glass and method for producing same
Atsuki Saito, Shiga (JP)
Assigned to NIPPON ELECTRIC GLASS CO., LTD., Shiga (JP)
Appl. No. 16/607,403
Filed by Nippon Electric Glass Co., Ltd., Shiga (JP)
PCT Filed Apr. 24, 2018, PCT No. PCT/JP2018/016539 § 371(c)(1), (2) Date Oct. 23, 2019, PCT Pub. No. WO2018/199059, PCT Pub. Date Nov. 1, 2018.
Claims priority of application No. 2017-088071 (JP), filed on Apr. 27, 2017.
Prior Publication US 2020/0130325 A1, Apr. 30, 2020
Int. Cl. B32B 17/10 (2006.01); C03B 17/06 (2006.01); C03C 3/087 (2006.01)

CPC B32B 17/10018 (2013.01) [B32B 17/10 (2013.01); C03B 17/06 (2013.01); C03C 3/087 (2013.01); B32B 2250/02 (2013.01); B32B 2457/206 (2013.01)]

17 Claims

1. A carrier glass for carrying an organic resin substrate,

wherein the carrier glass has a flat sheet shape having a thickness of from 0.1 mm to 1.2 mm,

wherein the carrier glass has a content of iron in glass in terms of Fe₂O₃of from 45 ppm by mass to 130 ppm by mass,

wherein the carrier glass has a transmittance at a wavelength of 308 nm in a thickness direction of from 71%to 81%,

wherein the carrier glass has a ratio of (MgO+CaO+SrO+BaO)/Al₂O₃in terms of mass % of from 0.90 to 1.40,

wherein the carrier glass has a specific Young's modulus that is greater than 29.5 GPa/g·cm^-3, and

wherein the carrier glass comprises as a glass composition, in terms of mass %, 0% to 6% of B₂O₃, and 0% to 6% of MgO, and is free of P₂O₅.