Double glazing having improved sealing

Patent metadata

Field	Value
Publication number	US-2016290033-A1
Application number	US-201415038356-A
Country	US
Kind code	A1
Filing date	Dec 5, 2014
Priority date	Dec 12, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A double glazing having a first pane and a second pane, and a spacer between the first pane and the second pane is described. The spacer has a glazing interior surface, an external surface and two pane contact surfaces; a glazing interior bordered by the inner faces of the first pane and of the second pane and the glazing interior surface of the spacer; an external intermediate space between the panes adjacent to the first pane, the second pane, and the external surface.

First claim

1 .- 15 . (canceled)

16 . An insulating glazing unit comprising:
a first pane and a second pane, a spacer between the first pane and the second pane, the spacer comprising a glazing interior surface, an external surface, and two pane contact surfaces, a glazing interior bordered by inner faces of the first pane and of the second pane and a glazing interior surface of the spacer, an external interpane space adjacent the first pane, the second pane, and the external surface, a primary sealant fixed between one pane contact surface and the first pane as well as between the other pane contact surface and the second pane, a secondary sealant in the external interpane space, fixed between the first pane and the second pane adjacent the external surface, and a tertiary sealant in the external interpane space, fixed between the first pane and the second pane adjacent the secondary sealant.

17 . The insulating glazing unit according to claim 16 , wherein the secondary sealant and the primary sealant contain components selected from the group consisting of butyl rubber, polyisobutylene, polyethylene vinyl alcohol, ethylene vinyl acetate, polyolefin rubber, and/or copolymers.

18 . The insulating glazing unit according to claim 16 , wherein the tertiary sealant contains components selected from the group consisting of polysulfides, silicones, silicone rubber, polyurethanes, polyacrylates, and/or copolymers.

19 . The insulating glazing unit according to claim 16 , wherein a penetration index of the secondary sealant is less than a penetration index of the primary sealant.

20 . The insulating glazing unit according to claim 16 , wherein the penetration index of the primary sealant is between 45 and 100 and the penetration index of the secondary sealant is between 20 and 40.

21 . The insulating glazing unit according to claim 16 , wherein thickness of the secondary sealant is from 0.5 mm to 5 mm.

22 . The insulating glazing unit according to claim 16 , wherein thickness of the tertiary sealant is from 2 mm to 30 mm.

23 . The insulating glazing unit according to claim 16 , wherein the insulating glazing unit additionally includes at least a third pane.

24 . The insulating glazing unit according to claim 23 , wherein the third pane is situated between the first pane and the second pane.

25 . The insulating glazing unit according to claim 23 , further comprising an additional spacer fixed on the first pane and/or the second pane parallel to the spacer situated between the first pane and the second pane.

26 . The insulating glazing unit according to claim 16 , wherein the spacer contains polymers and/or metals.

27 . The insulating glazing unit according to claim 16 , wherein the first pane and/or the second pane contain glass and/or polymers.

28 . A method for producing an insulating glazing unit, comprising:
a) fixing a spacer on a first pane and a second pane by way of a primary sealant on each pane contact surface of the spacer thus forming an intermediate arrangement, the intermediate arrangement further comprising
a glazing interior bordered by inner faces of the first pane and of the second pane and a glazing interior surface of the spacer, and
an external interpane space adjacent the first pane, the second pane, and the external surface,

b) pressing the intermediate arrangement, c) filling a secondary sealant into the external interpane space, and d) filling a tertiary sealant into the external interpane space.

29 . The method according to claim 28 , wherein step a) and step c) are performed simultaneously and the secondary sealant and the primary sealant are applied simultaneously.

30 . A glazing comprising the insulating glazing unit of claim 16 , said glazing being a building interior glazing, a building exterior glazing, or a facade glazing.

Assignees

• Saint Gobain

Inventors

• Messere Rino

Classifications

• E06B3/66342 Primary

  characterised by their sealed connection to the panes · CPC title

• Y02B80/22

  Glazing, e.g. vaccum glazing · CPC title

• E06B3/6775

  Evacuating or filling the gap during assembly · CPC title

• E06B3/6733

  by applying, e.g. extruding, a ribbon of hardenable material on or between the panes · CPC title

• E06B3/673

  Assembling the units (E06B3/677 takes precedence {; making hollow glass sheets or bricks C03B23/24}) · CPC title