Glass panel unit, glass window provided with same, and method for manufacturing glass panel unit
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsEiichi URIU, Hiroyuki ABE, Tasuku ISHIBASHI
Life of this patent
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Abstract
A glass panel unit includes: a first panel; a second panel facing the first panel; a sealing member bonded to respective facing peripheral portions of the first panel and the second panel; and at least one spacer provided in a reduced pressure space between the first panel and the second panel. The at least one spacer includes a resin body and at least one ultraviolet protective layer provided on a surface of the resin body.
Claims10
A glass panel unit comprising:
- a first panel including at least a first glass plate;
- a second panel facing the first panel and including at least a second glass plate;
- a sealing member formed in a frame shape and bonded hermetically to respective facing peripheral portions of the first panel and the second panel;
- and
- at least one spacer provided in an inner space between the first panel and the second panel,
- the inner space being a reduced pressure space,
- the at least one spacer including a resin body and at least one ultraviolet protective layer provided on a surface of the resin body.
A method for manufacturing a glass panel unit, comprising:
- a composite sheet forming step of forming an ultraviolet protective layer on at least one surface of a resin sheet;
- a spacer forming step of forming a plurality of spacers by punching a composite sheet including the resin sheet and the ultraviolet protective layer;
- a spacer arrangement step of arranging the plurality of spacers between a first substrate including at least a first glass substrate and a second substrate including at least a second glass substrate;
- a glass adhesive disposing step of disposing a glass adhesive in a frame shape between the first substrate and the second substrate;
- an evacuation step of evacuating a space located between the first substrate and the second substrate and surrounded with the glass adhesive;
- and
- a bonding step of bonding the first substrate and the second substrate together with the glass adhesive in the shape of the frame.
A method for manufacturing a glass panel unit, comprising:
- a composite sheet forming step of forming an ultraviolet protective layer on at least one surface of a resin sheet;
- a spacer forming step of forming a plurality of spacers by punching a composite sheet including the resin sheet and the ultraviolet protective layer;
- a step including disposing a glass adhesive in a frame shape on a peripheral portion of a surface of a first substrate including at least a first glass substrate, and arranging the plurality of spacers in a space surrounded with the glass adhesive;
- a substrate arrangement step of arranging a second substrate including at least a second glass substrate to allow the second substrate to face the surface of the first substrate on which the glass adhesive is disposed;
- an evacuation step of evacuating a space located between the first substrate and the second substrate and surrounded with the glass adhesive;
- and
- a bonding step of bonding the first substrate and the second substrate together with the glass adhesive in the shape of the frame.
Dependencies are inferred from the claim text.