IP Library › Granted Patent US 11,046,154
Granted Patent B2
US 11,046,154 · App. 16/706,942 · Granted Jun 29, 2021

Vehicular laminated glass

Inventors: Yukihiro Tao (Tokyo, JP); Reo Usui (Tokyo, JP)
Assignee: AGC Inc.
B60J1/002B32B17/10339B60J3/007B32B2605/006B60J1/02
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Quick Facts
Patent No.
US 11,046,154
App. No.
16/706,942
Granted
Jun 29, 2021
Kind
B2
Abstract

A vehicular laminated glass in which a plurality of glass plates and an intermediate film disposed between the plurality of glass plates are stacked. The vehicular laminated glass includes a first region having a colored layer disposed along an upper edge of the vehicular laminated glass with reference to an orientation of a vehicle to which the vehicular laminated glass is attached, and a second region disposed lower than the first region. The first region includes a region A having a light scattering layer and a region B not having the light scattering layer. In the region A, a visible light transmittance is 0.7% to 32%, a visible light reflectance is 0.5% to 10%, a vehicle-inner side visible light diffuse reflectance is 3% to 45%, and the light scattering layer is arranged at a vehicle-inner side relative to the colored layer.

Claims (25)

1. A vehicular laminated glass in which a plurality of glass plates and an intermediate film disposed between the plurality of glass plates are stacked, when attached to a vehicle, the vehicular laminated glass is disposed between a vehicle-inner side and a vehicle-outer side of the vehicle,

wherein the vehicular laminated glass comprises:

a first region having a colored layer disposed along an upper edge of the vehicular laminated glass with reference to an orientation of the vehicle to which the vehicular laminated glass is attached; and

a second region disposed lower than the first region,

wherein the first region comprises:

a region A having a light scattering layer; and

a region B not having the light scattering layer,

wherein:

the region A has a visible light transmittance ranging from 0.7% to 32%, a visible light reflectance ranging from 0.5% to 10%, and a vehicle-inner side visible light diffuse reflectance ranging from 3% to 45%, and

the light scattering layer is arranged at a vehicle-inner side relative to the colored layer.

2. The vehicular laminated glass according to claim 1 , wherein in the region B, with regard to a*, b*, and C* represented in CIE L*a*b* color space, a value a* is in a range of −55 to −5, a value b* is in a range of −30 to −3, and a value C* expressed by an Expression 1,

C *=√{square root over (( a *) 2 +( b *) 2 )}  (1)

is in a range of 20 to 60.

3. The vehicular laminated glass according to claim 2 , wherein a difference between a value C* in the region A and a value C* in the region B is 10 or less.

4. The vehicular laminated glass according to claim 1 , comprising two or more light scattering layers overlapping each other.

5. The vehicular laminated glass according to claim 1 , wherein in at least the region A, an anti-reflection coating is provided on a vehicle-inner side principal surface of one of the glass plates arranged at a vehicle-innermost side.

6. The vehicular laminated glass according to claim 1 , wherein the light scattering layer includes a first transparent layer, a reflection layer, and a second transparent layer, which are stacked in this order from a vehicle-outer side to the vehicle-inner side, the first transparent layer being formed with an uneven structure on a surface thereof, the reflection layer being formed on the uneven structure, and the second transparent layer being formed on the reflection layer.

7. The vehicular laminated glass according to claim 6 , wherein the uneven structure has an arithmetic mean height Sa of 0.1 μm to 20 μm and a maximum height Sz of 50 μm or less.

8. The vehicular laminated glass according to claim 1 , wherein the light scattering layer has a surface resistivity of 1 Ω/sq to 1×10 6 Ω/sq.

9. The vehicular laminated glass according to claim 1 , wherein:

the first region includes a region in which a visible light transmittance changes, and

the light scattering layer is not provided in the region in which the visible light transmittance changes.

10. The vehicular laminated glass according to claim 1 , wherein in the region A, a vehicle-outer side visible light diffuse reflectance is 30% or less.

11. The vehicular laminated glass according to claim 10 , wherein in the region A, the vehicle-inner side visible light diffuse reflectance is higher than the vehicle-outer side visible light diffuse reflectance.

12. The vehicular laminated glass according to claim 1 , wherein the colored layer comprises a dye which is at least one selected from the group consisting of azo dyes and phthalocyanine dyes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2019
From: TAO, YUKIHIRO; USUI, REO
To: AGC INC.
Reel/Frame 051213/0846 →
Priority Claims (1)
JP JP2017-144514 · Jul 26, 2017 · national
Continuity (2)
Continuation PCTJP2018027504 · Jul 23, 2018
Related Publication 20200114735A1 · Apr 16, 2020