Glass article

Patent metadata

Field	Value
Publication number	US-10576808-B2
Application number	US-201815948067-A
Country	US
Kind code	B2
Filing date	Apr 9, 2018
Priority date	Nov 20, 2015
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A glass article which has: a glass plate having a contour shape having an upper edge and a lower edge; a functional film formed on at least one of principal surfaces of the glass plate; and a holder having a recessed portion into which the lower edge of the glass plate is fitted, wherein the functional film has a first coverage area and a second coverage area, the second coverage area being formed in a manner to cover the principal surface, the first coverage area being formed on a lower side of the second coverage area, and a maximum film thickness of the first coverage area being smaller than a maximum film thickness of the second coverage area, and the holder is provided on a lower edge side of the glass plate, within the first coverage area of functional film, via an adhesive in the recessed portion.

First claim

What is claimed is:

1. A glass article comprising:
a glass plate having a contour shape having an upper edge and a lower edge;
a functional film formed on at least one of principal surfaces of the glass plate; and
a holder having a recessed portion into which the lower edge of the glass plate is fitted,
wherein the functional film has a first coverage area and a second coverage area, the second coverage area being formed in a manner to cover the principal surface extending from the upper edge toward the lower edge of the glass plate, the first coverage area being formed on a lower side of the second coverage area, along the lower edge, and a maximum film thickness of the first coverage area being smaller than a maximum film thickness of the second coverage area, and
the holder is provided on a lower edge side of the glass plate, within the first coverage area of functional film, via an adhesive in the recessed portion.

2. The glass article according to claim 1 ,
wherein the maximum film thickness of the first coverage area is smaller than a minimum film thickness of the second coverage area.

3. The glass article according to claim 2 ,
wherein the maximum film thickness of the first coverage area is 1.0 μm or less.

4. The glass article according to claim 3 ,
wherein the maximum film thickness of the first coverage area is 0.5 μm or less.

5. The glass article according to claim 1 ,
wherein a difference between the maximum film thickness and a minimum film thickness of the first coverage area is smaller than a difference between the maximum film thickness and the minimum film thickness of the second coverage area.

6. The glass article according to claim 1 ,
wherein the functional film is a functional film which absorbs ultraviolet ray or a functional film which absorbs ultraviolet ray and infrared ray.

7. The glass article according to claim 1 ,
wherein an ultraviolet transmittance Tuv 1 [%] measured based on ISO-9050 (year 1990) is 3.0[%] or less in a minimum film thickness portion of the second coverage area, and
an ultraviolet transmittance Tuv 2 [%] measured based on ISO-9050 (year 1990) is 4.0[%] or less, Tuv 2 is measured in a portion whose ultraviolet transmittance Tuv[%] measured based on ISO-9050 (year 1990) is 1.0[%] in the second coverage area after the portion is left for 1000 hours in a super xenon weather meter (SX75 by Suga Test Instruments Co., Ltd.) whose condition is set as 150 W/m 2 (300 to 400 nm) in irradiance, 83° C. in black panel temperature, and 50 RH % in humidity.

8. The glass article according to claim 1 ,
wherein a haze value (H 1 ) in the maximum film thickness portion of the second coverage area before an abrasion test of 1000 rotation to the functional film by a CS-10F abrasion wheel in accordance with JIS-R3212 (year 1998) is 1.0[%] or less, and
wherein a difference (ΔH) (ΔH=H 2 −H 1 ) between the haze value (H 1 ) before the abrasion test and a haze value (H 2 ) in the maximum film thickness portion after the abrasion test is 5.0[%] or less.

9. The glass article according to claim 1 ,
wherein the glass plate is a window glass mounted openably and closably by being lifted and lowered in a vertical direction in an opening portion of a window of an automobile vehicle, and
wherein, when the glass plate is lifted to close the opening portion, a main area of the second coverage area is provided to be placed in an opening area of the opening portion and a main area of the first coverage area is provided to be placed outside the opening area below the opening portion.

10. The glass article according to claim 1 ,
wherein the glass plate is the window glass mounted openably and closably by being lifted and lowered in the vertical direction in the opening portion of the window of the automobile vehicle,
wherein the glass plate is a curved glass plate which is curved to have a concave surface on an indoor side and a convex surface on an outdoor side of the automobile vehicle, and
wherein the functional film is formed in the concave surface.

Assignees

• Agc Inc

Inventors

• MORITA Shimpei
• Kodaira Hirokazu
• Yamazaki Masahiro
• Miyazaki Syo

Classifications

• E05Y2600/526

  Gluing or cementing · CPC title

• C03C2217/48

  having a specific function · CPC title

• B60J1/006 Primary

  characterised by fixation means such as clips, adhesive, etc. (incorporated in seal B60J10/70) · CPC title

• C03C2217/475

  Inorganic materials · CPC title

• E05F11/445

  for vehicle windows · CPC title