LAMINATED GLASS FOR AUTOMOBILE, AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2019/069628

A1

[Problem] The present invention addresses the problem of providing a laminated glass whereby glass sheets disposed on a vehicle inside and a vehicle outside are easily molded in the same curved shape when glass sheets having a small thickness are used. [Solution] A laminated glass for an automobile, wherein the laminated glass for an automobile is provided with a thermoplastic intermediate film layer, a curved first glass sheet disposed on an outdoor side and disposed facing via the thermoplastic intermediate film layer, and a curved second glass sheet disposed on an indoor side, the difference in annealing point temperature between the first glass sheet and the second glass sheet is within ±5°C and the difference in softening point temperature is within ±5°C, the FeO content in the glass composition of the first glass sheet is 0.1 mass% to 0.5 mass%, the FeO content in the glass composition of the second glass sheet is 0 mass% to 0.05 mass%, the thickness of the second glass sheet is 0.5 mm to 1.8 mm, and the thickness of the first glass sheet is 1.1 to 1.4 times the thickness of the second glass sheet.

NAKAMURA HIROKI (JP)
MITAMURA NAOKI (JP)
NAITO TAKUMA (JP)

PCT/JP2018/033386

April 11, 2019

September 10, 2018

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CENTRAL GLASS CO LTD (JP)

C03C27/12; B32B17/10; B60J1/00; C03B23/023; C03C3/083; C03C3/085; C03C3/087

WO2005063643A1	2005-07-14
WO2014054468A1	2014-04-10
WO2014054468A1	2014-04-10

JP2008516878A	2008-05-22
JP2004155632A	2004-06-03
US6538192B1	2003-03-25
JP2017518950A	2017-07-13
JP2009526731A	2009-07-23
JP2013525235A	2013-06-20
JPH03205321A	1991-09-06

See also references of EP 3670466A4

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