Glass panel unit

Patent metadata

Field	Value
Publication number	US-10619403-B2
Application number	US-201716089880-A
Country	US
Kind code	B2
Filing date	Mar 14, 2017
Priority date	Mar 31, 2016
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A glass panel unit according to an example of the present disclosure includes a first glass panel and a second glass panel disposed to face the first glass panel. The glass panel unit includes: a seal having frame shape and hermetically binding the first glass panel and the second glass panel together; and a depressurized space surrounded by the first glass panel, the second glass panel, and the seal. The glass panel unit includes spacers between the first glass panel and the second glass panel. The spacers include a macromolecular resin material including molecular chains. Of the molecular chains, the number of molecular chains oriented in an orthogonal direction is larger than the number of molecular chains oriented in a counter direction. The orthogonal direction is a direction orthogonal to the counter direction, which is a direction in which the first and second glass panels face each other.

First claim

The invention claimed is:

1. A glass panel unit, comprising:
a first glass panel including at least a glass pane;
a second glass panel disposed to face the first glass panel, the second glass panel including at least glass pane;
a seal having a frame shape and hermetically binding the first glass panel and the second glass panel together;
a depressurized space surrounded by the first glass panel, the second glass panel, and the seal; and
a spacer disposed between the first glass panel and the second glass panel, wherein
the spacer contains a macromolecular resin material including molecular chains, and
of the molecular chains, a number of molecular chains oriented in an orthogonal direction is larger than a number of molecular chains oriented in a counter direction, the orthogonal direction being orthogonal to the counter direction, the counter direction being a direction in which the first glass panel and the second glass panel face each other.

2. The glass panel unit according to claim 1 , wherein
the spacer is formed of a macromolecular film elongated in the orthogonal direction, a normal direction to a surface of the macromolecular film corresponding to the counter direction, an elongation ratio of the spacer in a first direction orthogonal to the counter direction being different from an elongation ratio of the spacer in a second direction orthogonal to the counter direction and the first direction.

3. The glass panel unit according to claim 1 , wherein
an elongation ratio of the spacer in at least one of a first direction and a second direction is larger than or equal to 5.

4. The glass panel unit accordingly to claim 2 , wherein
an elongation ratio of the spacer in at least one of a first direction and a second direction is larger than or equal to 5.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Abe Hiroyuki
• Uriu Eiichi
• Hasegawa Kazuya
• Nonaka Masataka
• Ishibashi Tasuku

Classifications

• C03C17/32

  with synthetic or natural resins (C03C17/30 takes precedence) · CPC title

• E06B3/6775

  Evacuating or filling the gap during assembly · CPC title

• E06B3/66342

  characterised by their sealed connection to the panes · CPC title

• E06B3/6612

  Evacuated glazing units · CPC title

• C03C27/06

  Joining glass to glass by processes other than fusing (fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66) · CPC title