GB2324824A - Patterned and partially reflecting insulating glazing unit - Google Patents

Patterned and partially reflecting insulating glazing unit Download PDF

Info

Publication number
GB2324824A
GB2324824A GB9708878A GB9708878A GB2324824A GB 2324824 A GB2324824 A GB 2324824A GB 9708878 A GB9708878 A GB 9708878A GB 9708878 A GB9708878 A GB 9708878A GB 2324824 A GB2324824 A GB 2324824A
Authority
GB
United Kingdom
Prior art keywords
glass
glazing unit
patterned
pane
multiple glazing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9708878A
Other versions
GB9708878D0 (en
Inventor
Mervyn John Davies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilkington Group Ltd
Pilkington United Kingdom Ltd
Original Assignee
Pilkington United Kingdom Ltd
Pilkington PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pilkington United Kingdom Ltd, Pilkington PLC filed Critical Pilkington United Kingdom Ltd
Priority to GB9708878A priority Critical patent/GB2324824A/en
Publication of GB9708878D0 publication Critical patent/GB9708878D0/en
Publication of GB2324824A publication Critical patent/GB2324824A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • B32B17/10055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet with at least one intermediate air space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

A multiple glazed unit 1 has an outer pane 2 and an inner pane 4, held apart by a spacer bar 6 to form an insulating air gap 8. The outer pane 2 is a patterned glass, which may be formed as translucent shapes acid etched into its exposed surface. The inner pane 4 is a mirror glass, which may be laminated from a low emissivity glass 16 and an exposed mirror glass 18. The low emissivity glass 16 has an infrared reflecting coating 22 and the mirror glass 18 has a partially reflecting coating 24.

Description

INSULATING GLAZING UNITS The invention relates to insulating glazing units and particularly to units which comprise two or more panes of glass held spaced apart to form one or more insulating air gaps. Such glazing is commonly known as multiple glazing.
Many UK homes are fitted with multiple glazing. Also, many UK homeowners are now choosing to add conservatories or predominantly glazed extensions to their homes.
Conservatories are often fabricated from multiple glazed units. Each unit generally comprises two panes of glass held spaced apart by a metal or plastic spacer frame. One or two sealants are applied around the frame to hold the panes together and to hermetically seal the air gap. The insulating ability of the unit may be improved by replacing the air in the gap with a noble gas, such as argon, which makes a better thermal insulator. It is also known to use a low emissivity, infra red reflecting glass, rather than a clear annealed glass, as one of the panes of the unit (usually the inner), also to improve its insulating ability. The infra red reflecting coating reflects infra red radiation that would otherwise escape to atmosphere by reflecting it back into the conservatory.
The invention provides a multiple glazing unit having an outer pane, an inner pane and a spacer frame arrangement holding the two panes spaced apart, characterised in that the outer pane is patterned glass and the inner pane comprises a mirror glass.
The term patterned glass is used in the field of building glass to mean any glass which has a pattern applied to one or both major surfaces for example by rolling it with a patterned roller during the glass production process, by etching the surface with acid or alkaline or by screen printing it with ink. The patterning affects light transmission, and visibility through the glass varies according to the particular pattern applied. Thus, patterned glasses are installed in situations where limited visibility of varying degrees is required, say, for reasons of privacy.
The applicants offer a range of patterned glasses in the UK under the trade mark PILKINGTON TEXTURE GLASS.
The term mirror glass is used herein to mean any glass which has been treated so as to render it partially reflecting, that is to say, having visible light reflectance greater than that of clear annealed glass but without any form of opaque, for example, sprayed or painted backing layer, so as to retain the ability to transmit visible light. The treating may involve applying a visible light reflecting coating. The applicants offer such a mirror glass in the UK under the trade mark PILKINGTON MIRAGE GLASS which is a so-called front surface mirror glass (the reflective coating is applied to the surface which in use is the front) with a visible light reflectance of at least 70%. Unbacked rear surface mirrors are also suitable.
Preferably, the inner pane is a laminated glass comprising two or more sheets which are bonded together and the mirror glass is one of the sheets, usually the room-side sheet. The sheets are generally bonded together with a polymeric material, such as polyvinylbutyral (PVB).
Further preferably, a second of the sheets in the laminated glass is a sheet of low emissivity glass. The term low emissivity glass is used herein to mean any glass whose infra red reflecting capability is sufficiently greater than that of clear annealed glass and would therefore improve the insulating ability of a multiple glazed unit in which it was used. The infra red reflecting capability may be produced by coating the glass with an infra red reflecting coating. The applicants offer a low emissivity coated glass in the UK under the trade mark PILKINGTON K GLASS.
The invention is particularly intended for use in conservatories where in certain circumstances there is a demand for the following combination of features: The patterned glass offers limited visibility so as to restrict the view into the conservatory of inquisitive passers-by and/or to restrict the conservatory occupants view of unsightly objects outside; the mirror glass enhances the obscuration offered by the patterned glass from outside by reflecting the pattern (especially with an etched pattern), offers an illusion of increased space by making the interior of the conservatory appear to the occupants to be larger than it actually is and offers an attractive visual effect by providing the occupants with partial visibility of the patterned glass.
The inclusion of a low emissivity glass in a laminated inner pane increases the insulating power of the unit. In addition, units according to the invention can serve as heated glazing by having a coated low emissivity glass and using the coating as a resistive heating element. A voltage can be applied across the coating through bus bars at opposite edges.
The invention will now be described by way of example with reference to the sole drawing, figure 1, which is a cross-sectional view of a multiple glazing unit according to the invention.
A multiple glazing unit for a conservatory indicated generally at 1 has an outer pane 2 and an inner pane 4. The two panes 2, 4 are held spaced apart by an aluminium spacer bar 6 so as to form an insulating air gap 8. The spacer bar 6 is bent to form a rectangle Df corresponding shape, albeit slightly smaller than, the panes 2, 4. Beads of butyl sealant 10, 12 between the spacer bar 6 and the panes 2,4 respectively seal the air gap 8 against moisture ingress. A secondary sealant 14 bonds the two panes 2,4 together at their margins.
The outer pane 2 is a patterned glass having translucent leaf-like shapes (not shown) acid etched into its exposed surface. The translucent shapes limit the visibility through the pane 2.
The inner pane 4 is a laminated glass comprising a sheet of infra red reflecting low emissivity glass 16 and a sheet of mirror glass 18 bonded together with a sheet of PVB 20.
The sheets 16, 18 are laminated together using conventional techniques.
The low emissivity glass 16 is adjacent the air gap 12. The illustrated embodiment has a coated low emissivity glass 16 with an infra red reflecting coating 22 (thickness exaggerated in the figure for ease of understanding) of fluorine doped tin oxide. As is conventional, the coating 22 faces the air gap 8.
The mirror glass 18 is the exposed one of the two sheets 16, 18. The illustrated embodiment has a front surface mirror glass 18 of the type described in EP 0583871: The mirror glass 18 is coated on its front, exposed surface with a partially reflecting coating 24 (thickness exaggerated in the figure for ease of understanding) made up of alternate layers of silicon.

Claims (6)

Claims
1. A multiple glazing unit having an outer pane, an inner pane and a spacer frame arrangement holding the two panes spaced apart, characterised in that the outer pane is patterned glass and the inner pane comprises a mirror glass.
2. A multiple glazing unit according to claim 1 wherein the inner pane is a laminated glass comprising two or more sheets which are bonded together and the mirror glass is one of the sheets.
3. A multiple glazing unit according to claim 1 or claim 2 wherein a second of the sheets is a low emissivity glass.
4. A multiple glazing unit according to any of claims 1 to 3 wherein the patterned glass is an etched glass.
5. A multiple glazing unit according to any of claims 1 to 4 wherein the mirror glass is a front surface mirror glass or an unbacked rear surface mirror glass.
6. A multiple glazing unit substantially as herein described with reference to the sole drawing figure 1.
GB9708878A 1997-05-02 1997-05-02 Patterned and partially reflecting insulating glazing unit Withdrawn GB2324824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9708878A GB2324824A (en) 1997-05-02 1997-05-02 Patterned and partially reflecting insulating glazing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9708878A GB2324824A (en) 1997-05-02 1997-05-02 Patterned and partially reflecting insulating glazing unit

Publications (2)

Publication Number Publication Date
GB9708878D0 GB9708878D0 (en) 1997-06-25
GB2324824A true GB2324824A (en) 1998-11-04

Family

ID=10811659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9708878A Withdrawn GB2324824A (en) 1997-05-02 1997-05-02 Patterned and partially reflecting insulating glazing unit

Country Status (1)

Country Link
GB (1) GB2324824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2489422A (en) * 2011-03-25 2012-10-03 Fendor Holdings Ltd Security window assembly
EP3006204A1 (en) * 2014-10-10 2016-04-13 Lammin Ikkuna Oy Window pane and window

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219015A (en) * 1967-03-17 1971-01-13 Libbey Owens Ford Company Form Heat reflecting window
US3935351A (en) * 1972-05-12 1976-01-27 Ppg Industries, Inc. Multiple glazed windows including selective reflecting metal/metal oxide coatings
GB1507465A (en) * 1974-06-14 1978-04-12 Pilkington Brothers Ltd Coating glass
GB2095738A (en) * 1981-03-27 1982-10-06 Glaverbel Hollow glazing panels
WO1987001970A1 (en) * 1985-10-07 1987-04-09 Libbey-Owens-Ford Company Continuous vapor deposition method for producing a coated glass article
US4883721A (en) * 1987-07-24 1989-11-28 Guardian Industries Corporation Multi-layer low emissivity thin film coating
US4914877A (en) * 1987-08-11 1990-04-10 Bennett-Ringrose-Wolfsfeld-Jarvis-Gardner, Inc. Translucent glass curtain wall
EP0583871A1 (en) * 1992-07-11 1994-02-23 Pilkington Glass Limited Method for preparing reflecting coatings on glass and mirrors prepared thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219015A (en) * 1967-03-17 1971-01-13 Libbey Owens Ford Company Form Heat reflecting window
US3935351A (en) * 1972-05-12 1976-01-27 Ppg Industries, Inc. Multiple glazed windows including selective reflecting metal/metal oxide coatings
GB1507465A (en) * 1974-06-14 1978-04-12 Pilkington Brothers Ltd Coating glass
GB2095738A (en) * 1981-03-27 1982-10-06 Glaverbel Hollow glazing panels
WO1987001970A1 (en) * 1985-10-07 1987-04-09 Libbey-Owens-Ford Company Continuous vapor deposition method for producing a coated glass article
US4883721A (en) * 1987-07-24 1989-11-28 Guardian Industries Corporation Multi-layer low emissivity thin film coating
US4914877A (en) * 1987-08-11 1990-04-10 Bennett-Ringrose-Wolfsfeld-Jarvis-Gardner, Inc. Translucent glass curtain wall
EP0583871A1 (en) * 1992-07-11 1994-02-23 Pilkington Glass Limited Method for preparing reflecting coatings on glass and mirrors prepared thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2489422A (en) * 2011-03-25 2012-10-03 Fendor Holdings Ltd Security window assembly
EP3006204A1 (en) * 2014-10-10 2016-04-13 Lammin Ikkuna Oy Window pane and window

Also Published As

Publication number Publication date
GB9708878D0 (en) 1997-06-25

Similar Documents

Publication Publication Date Title
US4069630A (en) Heat reflecting window
EP1030023B1 (en) Glass panel
US8633426B2 (en) Electrically heatable sheet of glass, method for production thereof and also window
EP2456728B1 (en) Electrochromic device
US5834124A (en) Impact resistant laminated glass windows
JP2777045B2 (en) Window glass that can electrically control sunlight
US7754336B2 (en) Carbon nanotube glazing technology
EP2583135B1 (en) Laminated glazing with a reduced coloration in reflection
CA2349843A1 (en) Electrochromic structures
EP1514451B1 (en) Heatable glazing panel
US20030121218A1 (en) Spandrel construction
AU2002322509A1 (en) Energy-free refrigeration door and method for making the same
CN111566060B (en) Multi-layer insulating glass units including low CTE glass layers
DE69907774T2 (en) Translucent glass pane with sun protection properties and laminated glass pane with transparent sun protection coating
EP0303411B1 (en) Glazing units
US4000593A (en) Insulating spandrel glazing unit
US7278241B2 (en) Window assembly
JP2002226237A (en) Double-layered glass with heat screening film
GB2324824A (en) Patterned and partially reflecting insulating glazing unit
US20040202803A1 (en) Spandrel panel with low visible light transmittance pane
WO2019176862A1 (en) Insulating glass panel
Groth et al. Gold coated glass in the building industry: The design of interference systems for heat reflection
WO2004083585A2 (en) Glazing unit
CA2071682A1 (en) Heat insulating double-pane glass
LRe et al. The ESSENTIAL

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)