WO2019130285A1 - Stratifié doté d'une résistance élevée à l'abrasion et aux intempéries - Google Patents

Stratifié doté d'une résistance élevée à l'abrasion et aux intempéries Download PDF

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Publication number
WO2019130285A1
WO2019130285A1 PCT/IB2018/060745 IB2018060745W WO2019130285A1 WO 2019130285 A1 WO2019130285 A1 WO 2019130285A1 IB 2018060745 W IB2018060745 W IB 2018060745W WO 2019130285 A1 WO2019130285 A1 WO 2019130285A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
laminate
windshield
layer
lime
Prior art date
Application number
PCT/IB2018/060745
Other languages
English (en)
Inventor
Mario Arturo MANNHEIM ASTETE
Juan Pablo Suarez
Original Assignee
Agp America S.A.
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 Agp America S.A. filed Critical Agp America S.A.
Publication of WO2019130285A1 publication Critical patent/WO2019130285A1/fr

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Classifications

    • 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
    • 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
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10091—Properties of the bulk of a glass sheet thermally hardened
    • 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
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
    • 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
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10137—Chemical strengthening
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
    • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band

Definitions

  • the invention relates to the field of automotive laminated glazing.
  • the main cameras require a high, forward looking field of view and hence it is typically mounted on the windshield and in the area cleared by the wipers.
  • Camera based systems are used to provide a wide array of safety functions including adaptive cruise control, obstacle detection, lane departure warning and support for partial and full autonomous operation. Many of these applications require the use of multiple cameras.
  • a clear undistorted field of view, with minimal double imaging, a high level of light transmission with unaltered natural color is especially critical for camera-based systems to perform as intended. It is essential for these systems to be able to quickly differentiate between objects, capture text, identify signage, and operate with minimal lighting. Further, as the resolution of the cameras increases, the need for a clear distortion free field of view increases.
  • the optical quality of windshields is based upon the requirements for human vision.
  • the human eye can analyze and filter an image far better than a computer even though today’s cameras have far greater resolution.
  • the requirements for human vision are not the same as for a camera system.
  • the optical requirements are more similar to that of a precision lens system and a human eye. This may change in the future but for now and the foreseeable future, the optical quality of windshield will need to be better than required for just human vision.
  • Soda-lime glass is made from sodium carbonate (soda), lime (calcium carbonate), dolomite, silicon dioxide (silica), aluminum oxide (alumina), and small quantities of substances added to alter the color and other properties.
  • One of the drawbacks of glass is that it is a brittle material that fails under relatively low loading when placed in tension.
  • the cold bent glass will remain in tension and tend to distort the shape of the bent layer that it is bonded to. Therefore, the bent layer must be compensated to offset the tension.
  • the flat glass may need to be partially thermally bent prior to cold bending.
  • the glass to be cold bent is placed with a bent to shape layer and with a bonding layer placed between the glass to be cold bent and the bent glass layer.
  • the assembly is placed in what is known as a vacuum bag.
  • the vacuum bag is an airtight set of plastic sheets, enclosing the assembly and bonded together it the edges, which allows for the air to be evacuated from the assembly and which also applies pressure on the assembly forcing the layers into contact.
  • the assembly in the evacuated vacuum bag, is then heated to seal the assembly.
  • the assembly is next placed into an autoclave which heats the assembly and applies high pressure. This completes the cold bending process as the flat glass at this point has conformed to the shape of the bent layer and is permanently affixed.
  • the cold bending process is very similar to a standard vacuum bag/autoclave process, well known in the art, except for having an unbent glass layer added to the stack of glass.
  • Hard coats are durable and can be exposed to weather and touch.
  • Soft coats are easily damaged by touch and exposure.
  • Soft coats are generally protected by applying to one of the enclosed surfaces of an insulated glass unit or, in a laminate, to one of the major faces adjacent to the plastic bonding layer.
  • a windshield comprising a 2.1 mm outer layer 201 of borosilicate glass and an inner layer 202 of 0.7 chemically tempered aluminosilicate glass.
  • the outer glass layer 201 is press bent to shape.
  • the inner glass layer 202 is cold bent.
  • a single 0.76 mm solar absorbing plastic bonding layer 4 is used.
  • a black organic paint 6 is applied to surface four 104 of glass.
  • a windshield comprising a 2.1 mm outer layer 201 of solar green soda- lime glass and an inner layer 202 of 2.1 mm solar green soda-lime glass.
  • a hard coat of sapphire is applied to surface one 101 of glass by the MSVD process. The glass layers are gravity bent to shape. A single 0.76 mm plastic bonding layer 4 is used.
  • a black frit 6 is applied to surface four 104 of glass.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

Au fur et à mesure que l'industrie automobile progresse vers des véhicules autonomes, l'une des technologies de pointe sur le point d'émerger est une vision basée sur une caméra. L'emplacement idéal pour les caméras principales est proche du centre supérieur du pare-brise. Ceci permet d'obtenir un large champ de vision vers l'avant et les systèmes d'essuie-glace et de dégivrage existants peuvent être utilisés pour maintenir le champ de vision dégagé. Cependant, la qualité optique du pare-brise typique à base de soude-chaux se dégrade au cours du temps puisque la surface du verre réagit avec les éléments et est abrasée par les essuie-glaces, la poussière et les débris. Une petite puce, qui ne devrait normalement pas poser de problème à un autre emplacement dans le pare-brise, nécessite un remplacement ou une réparation du pare-brise si elle se trouve dans la zone de la caméra. Le stratifié selon la présente invention remplace la couche de verre externe par un verre qui est sensiblement plus résistant à l'abrasion et aux intempéries que le verre à base de soude-chaux standard, ce qui permet d'obtenir une durabilité optique améliorée.
PCT/IB2018/060745 2017-12-31 2018-12-31 Stratifié doté d'une résistance élevée à l'abrasion et aux intempéries WO2019130285A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762612567P 2017-12-31 2017-12-31
US62/612,567 2017-12-31

Publications (1)

Publication Number Publication Date
WO2019130285A1 true WO2019130285A1 (fr) 2019-07-04

Family

ID=63286947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/060745 WO2019130285A1 (fr) 2017-12-31 2018-12-31 Stratifié doté d'une résistance élevée à l'abrasion et aux intempéries

Country Status (2)

Country Link
CO (1) CO2018006232A1 (fr)
WO (1) WO2019130285A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021102163A1 (fr) * 2019-11-21 2021-05-27 Tesla, Inc. Verre durable pour véhicule
DE102022122843A1 (de) 2021-09-09 2023-03-09 Schott Ag Chemisch gehärtete Glasscheibe und Herstellungsverfahren für diese
EP4148025A1 (fr) 2021-09-09 2023-03-15 Schott Ag Feuille de verre chimiquement renforcée et son procédé de production
EP4166519A1 (fr) 2021-10-14 2023-04-19 Schott Ag Vitre comprenant au moins un revêtement appliqué dans au moins une zone d'au moins une face de la vitre, pâte pour la fabrication d'une telle vitre et composite comprenant une telle vitre
DE102021126693A1 (de) 2021-10-14 2023-04-20 Schott Ag Glasscheibe umfassend wenigstens eine in wenigstens einem Bereich wenigstens einer Seite der Glasscheibe aufgetragene Beschichtung, Paste zur Herstellung einer solchen Glasscheibe und Verbund umfassend eine solche Scheibe sowie dessen Verwendung
DE102022111945A1 (de) 2022-05-12 2023-11-16 Schott Ag Glasscheibe umfassend wenigstens eine in wenigstens einem Bereich wenigstens einer Seite der Glasscheibe aufgetragene Beschichtung, Paste zur Herstellung einer solchen Glasscheibe und Verbund umfassend eine solche Scheibe sowie dessen Verwendung
US11951713B2 (en) 2020-12-10 2024-04-09 Corning Incorporated Glass with unique fracture behavior for vehicle windshield

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943484A (en) * 1986-08-20 1990-07-24 Libbey-Owens-Ford Co. Solar control glass assembly and method of making same
US20110318578A1 (en) * 2009-03-06 2011-12-29 Bridgestone Corporation Solar control laminate and solar control laminated glass using the same
US20160263969A1 (en) * 2013-10-23 2016-09-15 Saint-Gobain Glass France Thin laminated glass
WO2016203869A1 (fr) * 2015-06-16 2016-12-22 日本電気硝子株式会社 Élément dur
WO2017159997A1 (fr) * 2016-03-14 2017-09-21 주식회사 고려이노테크 Film de revêtement dur af hautement fonctionnel
WO2017188686A1 (fr) * 2016-04-26 2017-11-02 주식회사 엘지화학 Verre feuilleté et procédé de fabrication de verre feuilleté

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943484A (en) * 1986-08-20 1990-07-24 Libbey-Owens-Ford Co. Solar control glass assembly and method of making same
US20110318578A1 (en) * 2009-03-06 2011-12-29 Bridgestone Corporation Solar control laminate and solar control laminated glass using the same
US20160263969A1 (en) * 2013-10-23 2016-09-15 Saint-Gobain Glass France Thin laminated glass
WO2016203869A1 (fr) * 2015-06-16 2016-12-22 日本電気硝子株式会社 Élément dur
WO2017159997A1 (fr) * 2016-03-14 2017-09-21 주식회사 고려이노테크 Film de revêtement dur af hautement fonctionnel
WO2017188686A1 (fr) * 2016-04-26 2017-11-02 주식회사 엘지화학 Verre feuilleté et procédé de fabrication de verre feuilleté

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021102163A1 (fr) * 2019-11-21 2021-05-27 Tesla, Inc. Verre durable pour véhicule
US11511523B2 (en) 2019-11-21 2022-11-29 Tesla, Inc. Durable glass for vehicle
US11806968B2 (en) 2019-11-21 2023-11-07 Tesla, Inc. Durable glass for vehicle
US11951713B2 (en) 2020-12-10 2024-04-09 Corning Incorporated Glass with unique fracture behavior for vehicle windshield
DE102022122843A1 (de) 2021-09-09 2023-03-09 Schott Ag Chemisch gehärtete Glasscheibe und Herstellungsverfahren für diese
EP4148025A1 (fr) 2021-09-09 2023-03-15 Schott Ag Feuille de verre chimiquement renforcée et son procédé de production
EP4166519A1 (fr) 2021-10-14 2023-04-19 Schott Ag Vitre comprenant au moins un revêtement appliqué dans au moins une zone d'au moins une face de la vitre, pâte pour la fabrication d'une telle vitre et composite comprenant une telle vitre
DE102021126693A1 (de) 2021-10-14 2023-04-20 Schott Ag Glasscheibe umfassend wenigstens eine in wenigstens einem Bereich wenigstens einer Seite der Glasscheibe aufgetragene Beschichtung, Paste zur Herstellung einer solchen Glasscheibe und Verbund umfassend eine solche Scheibe sowie dessen Verwendung
DE102022111945A1 (de) 2022-05-12 2023-11-16 Schott Ag Glasscheibe umfassend wenigstens eine in wenigstens einem Bereich wenigstens einer Seite der Glasscheibe aufgetragene Beschichtung, Paste zur Herstellung einer solchen Glasscheibe und Verbund umfassend eine solche Scheibe sowie dessen Verwendung

Also Published As

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