EP3720702A1 - Verfahren zur herstellung einer verbundscheibe - Google Patents

Verfahren zur herstellung einer verbundscheibe

Info

Publication number
EP3720702A1
EP3720702A1 EP18807342.3A EP18807342A EP3720702A1 EP 3720702 A1 EP3720702 A1 EP 3720702A1 EP 18807342 A EP18807342 A EP 18807342A EP 3720702 A1 EP3720702 A1 EP 3720702A1
Authority
EP
European Patent Office
Prior art keywords
film
edge
laminating
disc
composite
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Withdrawn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
EP18807342.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Uwe Van Der Meulen
Stephan GIER
Richard BROCKER
Robert Besler
Rene Bischof
Stefan Lücke
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3720702A1 publication Critical patent/EP3720702A1/de
Withdrawn legal-status Critical Current

Links

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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • 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
    • B32B17/10293—Edge features, e.g. inserts or holes
    • 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
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • 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
    • B32B17/10605—Type of plasticiser
    • 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
    • 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
    • B32B17/10779—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 polyester
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B32B37/182—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only one or more of the layers being plastic
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/08—Windows; Windscreens; Accessories therefor arranged at vehicle sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/18—Windows; Windscreens; Accessories therefor arranged at the vehicle rear
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B32B2037/1223—Hot-melt adhesive film-shaped
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/04—4 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/05—5 or more layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2274/00—Thermoplastic elastomer material
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/422—Luminescent, fluorescent, phosphorescent
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2419/00—Buildings or parts thereof
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings

Definitions

  • the invention relates to a method for producing a composite pane, a composite pane produced thereby and their use.
  • the composite disk usually comprises a PET film enclosed between two laminating films and two outer rigid disks made of glass or plastic.
  • the outer laminating films are made of polyvinyl butyral (PVB) and serve as adhesive layers to make the connection to the two rigid disks.
  • the PET film is usually provided with an infrared-reflecting electrically conductive coating, which is formed as a thin film and serves as a heat reflector, so that the composite pane has a very low heat transmission.
  • DE 199 02 471 A1 discloses a curved, transparent composite pane comprising a laminate of a thin film-provided carrier foil and outer adhesive layers.
  • the composite pane has an edge strip made of an opaque material, wherein the carrier foil extending over the visible surface is cut to such an extent that its visible edges are just barely covered by the edge strip in a viewing direction.
  • EP 0 371 949 A1 discloses a laminated glass pane having a sunscreen coating which comprises two laminating films and an intermediate carrier film with a metallic and a dielectric layer.
  • the method for producing such a disk involves, in a first step, the production of a trilayer of laminating films and coated carrier film, the carrier film being inserted between the laminating films. This has the advantage that the scratch-sensitive surface of the coating is protected by a laminating film.
  • DE 195 03 510 A1 discloses a method for producing an edge-sealed IR-reflecting laminated glass pane.
  • the laminated glass sheet comprises a thermoplastic polymer laminate comprising a support film having an IR reflective metal layer.
  • the infrared-reflecting electrically conductive coating is usually transparent and can optionally also be arranged on one of the inner sides of the rigid disks.
  • Such coatings comprise electrically conductive layers, in particular silver-based, and are suitable for reducing unwanted heating of an interior space. This type of coating is known, for example, in WO 03/024155 A2.
  • Such discs are preferably used in the automotive sector as a roof or windshield.
  • the aesthetic demands on vehicles are also increasing. This creates a growing demand for visually appealing composite disks. These often have complex geometries. These include both conventional disc formats with exceptionally strong bends and panorama glass panes. However, especially panorama windows lead to a strong warming of the vehicle interior due to the large Einstrahl Type.
  • the present invention has for its object to provide a method for producing a composite disk, as well as a composite disk, in which the wrinkling is avoided and the production of the composite disk is simplified.
  • the invention relates to a method for producing a composite pane, in which: a first laminating film, a carrier film and a second laminating film are provided and joined to a pre-bond, wherein the first laminating film, the carrier film and the second laminating film have the same film thickness,
  • a compensating film and the pre-composite is arranged to a layer stack between a first disc and a second disc, wherein in each case a strip-shaped edge foil is arranged parallel to two side edges of the layer stack and the compensating foil is provided to compensate for an offset between the pre-composite and the edge foils,
  • first laminating film and the second laminating film contains a plasticizer content of less than 15 wt .-%, preferably less than 10 wt .-%, more preferably less than 5 wt .-% and is preferably free from plasticizer.
  • the first laminating film, the carrier film and the second laminating film have approximately the same film thickness. This will increase the stiffness of the Carrier film positively influenced.
  • Laminating film can better adapt to the complex shape of the rigid discs, thus greatly reducing the wrinkling of the films.
  • a pre-bond, a so-called trilayer, of the first laminating film, the carrier film and the second laminating film is first created.
  • the carrier film is equipped with thermal insulation properties, for example, with an infrared-reflective coating.
  • the carrier foil is arranged between the first laminating foil and the second laminating foil.
  • the pre-composite may have a length of approximately 1.4 m (longitudinal direction) (140 cm) and a width of approximately 1 m (100 cm).
  • the precompound may have an embossment which improves the adhesion of the trilayer.
  • Such a trilayer can be further processed without special precautions and is particularly insensitive in handling.
  • the layer stack of laminating film, a carrier film, a second laminating film and leveling foil can be prefixed selectively in its edge regions with a soldering iron by punctual welding. The prefixing takes place before the lamination. It also enables a virtually wrinkle-free film in the composite pane even with complex curved pane geometry.
  • the first laminating film and the second laminating film preferably contain substantially no plasticizers, i. the content of plasticizers in the laminating films is very low, so that a degradation of the carrier film by diffusing plasticizer molecules practically does not take place.
  • the films have a plasticizer content of less than 15 wt .-%, preferably less than 10 wt .-%, more preferably less than 5 wt .-%.
  • the carrier film has a rather high rigidity and the compensating foil has a comparatively low rigidity.
  • the first or second laminating film has a very low (less than 15 wt .-%, preferably less than 10 wt .-%, more preferably less than 5 wt .-%) content of plasticizers. This results in a rigidity of the laminating films which is less than the stiffness of the carrier film but stiffer than the stiffness of the
  • the laminating films contain at least one thermoplastic polymer, preferably
  • EVA Ethylene vinyl acetate
  • PVB polyvinyl butyral
  • PU polyurethane
  • the thickness of the laminating films is preferably from 25 ⁇ m to 250 ⁇ m (microns), more preferably 50 ⁇ m.
  • the carrier film preferably contains at least polyethylene terephthalate (PET), polyethylene (PE) or mixtures or copolymers or derivatives thereof.
  • PET polyethylene terephthalate
  • PE polyethylene
  • the carrier film preferably has a thickness of 25 ⁇ m to 250 ⁇ m (microns), particularly preferably 50 ⁇ m.
  • the edge foil is arranged parallel to a longitudinal edge of the precombustion extending in the longitudinal direction of the precombustion.
  • the width of the pre-composite may be about 10 times the width of the edge foil.
  • the laminating film, a carrier film, a second laminating film and compensating film may each be integrally formed, while the edge film is formed from at least two strip-shaped pieces, one edge film of the layer stack (of laminating film, a carrier film, a second laminating film and compensating film) and the second edge film juxtaposed between the rigid discs are arranged.
  • two further strip-shaped edge foil can be arranged on two further edges of the pre-composite, so that the edge foils surround the pre-composite on four sides like a frame.
  • the edge films preferably have a thickness of 0.38 mm.
  • the laminating films and the carrier films have a significantly thinner film thickness. This results in an offset.
  • the compensating film can be used as a balance between the pre-bond and the edge foils
  • the first pane and the second pane are connected via the precoat, the leveling foil and the edge foils.
  • the pre-association, the The leveling foil and the edge foils are subjected to strong deformations in an autoclave. Despite the effect of tensile forces becomes a wrinkle free and to the geometry of the
  • Composite disc adapted composition of the composite disc ensures.
  • thermoplastic connecting film can be arranged between the compensating film and the first pane.
  • a second thermoplastic connecting film is arranged between the pre-composite and the second pane.
  • Both the compensating film, the first thermoplastic compound film and the second thermoplastic compound film contain a thermoplastic polymer, preferably ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, more preferably polyvinyl butyral.
  • the thickness of the first thermoplastic compound foil is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1 mm, for example 0.5 mm.
  • the thickness of the compensating film is determined by the difference in thickness between the frame film and the so-called trilayer.
  • the pre-composite can be provided with an incision in an edge region, preferably perpendicular to an edge film, before the lamination.
  • the depth of the incision is greater than the thickness of the first laminating film and the carrier film.
  • Border area is defined as the portion of the film located within a distance to the peripheral edge of the disks.
  • the distance is usually between 3 mm and 350 mm.
  • the value is not only dependent on the application and shape of the disc (for example, side window, rear window or windshield), but also varies within a composite disc.
  • a relatively large pruning occurs (for example between 200mm and 350mm) at the engine edge of the disc, while at the roof edge (e.g., 20mm) and at the side A-spars (e.g., 10mm) a much smaller pruning occurs.
  • the edge region is due to its small width readily obscured by an opaque screen printing, as is common in the prior art. The transition between the edge region and the remaining disc is thus covered by screen printing and not visible as a visually disturbing edge.
  • the incision fills completely with the material of the laminating film, so that after the lamination the incision is closed again.
  • the edge of the carrier film is isolated from the environment of the composite disk.
  • the pre-bond may, for example, the so-called trilayer or alternatively
  • the quadrolayer comprises a trilayer and a leveling foil, i. the compensating film with the first laminating film, the carrier film and the second laminating film form the quadrolayer.
  • the pre-composite designed as a trilayer or quadrolayer, is preferably produced at a temperature of up to 100.degree.
  • the pre-bond has a
  • the infrared-reflecting functional layer can in particular be an infrared-reflecting
  • the infrared-reflecting coating can be contacted in an electrically conductive manner.
  • infrared-reflecting coating is an electrically conductive
  • Coating used which is connected via bus bars to an external voltage source, so that a current between the bus bars through the conductive
  • the coating can additionally function as a heating layer and be used to heat the composite pane, for example, to deice the pane or to remove moisture from the fitting.
  • the inventive method is basically with all functional layers
  • the functional layer can be for example an SPD (suspended particle devise) layer or a PDLC (polymer dispersed liquid crystal) layer.
  • SPD single particle devise
  • PDLC polymer dispersed liquid crystal
  • the invention further comprises a composite disc obtainable by the method according to the invention.
  • the composite pane comprises at least one surface arranged one above the other:
  • first laminating film (4), the second laminating film (6) and the carrier film (5) have the same film thickness.
  • the composite disk produced by the method according to the invention can be used as a vehicle windshield, ship's window or aircraft windscreen, as structural glazing or Architectural glazing, preferably as a vehicle window, particularly preferably as
  • the outer pane and / or the inner pane preferably contains glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass or plastics, preferably rigid plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and / or mixtures or copolymers thereof.
  • the thickness of the first disc and / or the second disc can vary widely and so perfectly adapted to the requirements in each case.
  • the thicknesses of the outer pane and the inner pane are from 0.5 mm to 10 mm and preferably from 1.4 mm to 3 mm, very particularly preferably 2.1 mm.
  • the first disc and the second disc may have any three-dimensional shape and, for example, a length of about 1, 6 m and a width and about 1, 3 m.
  • the discs are slightly or strongly bent in one direction or in several directions of the space.
  • the first disc and the second disc may be arbitrarily complex spherical, e.g. be bent conically or parabolically.
  • the first pane, the second pane, the first laminating film, the second laminating film or the thermoplastic film may be clear and colorless, but also tinted, cloudy or colored.
  • the first disc and the second disc may be non-preloaded, partially preloaded or biased glass.
  • a reduction in wrinkling results in a reduced level of rejects in the manufacture of a composite disk, especially when the composite disk is domed or highly curved.
  • the inventive method is much more economical to manufacture.
  • the summarized process steps can be done in any order.
  • the laminated glass is produced by lamination by conventional methods known per se to the person skilled in the art, for example autoclave methods, vacuum bag methods, vacuum ring methods, calendering methods, vacuum laminators or combinations thereof.
  • the connection of the first disk and the second disk usually takes place under the action of heat, vacuum and / or pressure.
  • FIG. 2 shows a composite pane according to the invention with edge area
  • FIG. 3 shows a cross section through a further embodiment of a structure of a composite pane according to the invention in front of a
  • FIG. 4 shows a cross section through a further embodiment of a structure of a composite pane according to the invention in front of a
  • FIG. 5 shows a flow chart of a method according to the invention for
  • FIG. 1 shows a cross-section of a construction of a composite pane 1 according to the invention, here before the lamination process.
  • the composite disk 1 consists of a first disk 2 made of soda lime glass with a thickness of 1.4 mm and a second disk 3 made of soda lime glass with a thickness of 2.1 mm. Between the first pane 2 and the second pane 3, a first laminating film 4, a carrier film 5 with an infrared-reflecting coating, a second laminating film 6 and a compensating film 7 are arranged.
  • the laminating films 4 and 6 are essentially plasticizer-free PVB films with a very high small thickness of about 50 pm.
  • the laminating films 4 and 6 and the carrier film 5 have approximately the same film thickness.
  • the carrier film 5 may be, for example, a PET film having a thickness of 50 ⁇ m.
  • Two strip-shaped edge films 9 each extend at two opposite longitudinal edges of the first and second disks 2 and 3.
  • the compensating film 7 is placed centrally on one side of the first disk 2.
  • the shape of the compensation foil 5 corresponds approximately to the shape of the first disc 2, wherein on two opposite sides of a strip-shaped edge region A of the first disc 2 is not covered by the compensating foil.
  • the edge region A represents the maximum occurring at the wheel edge distance between the window edge and compensating film 7.
  • a so-called trilayer 8 is placed on the compensating sheet 7.
  • the trilayer 8 contains at least the first laminating film 4, the carrier film 5 and the second laminating film 6, the carrier film 5 having been previously bonded to the trilayer 9 with the first and second laminating films (4 and 6) at a temperature of up to 100 ° C , In this processing step, the carrier film 5 is embedded between the two laminating films (4 and 6), so that it is protected from environmental influences and is particularly easy to handle during further processing.
  • the shape and size of the trilayer 8 corresponds approximately to the shape and size of the compensating film 7, so that a layer stack of compensating film 7 and trilayer 8 is formed. Parallel to the two side edges of the layer stack, the strip-shaped edge foil 9 is arranged on the first disc 2, thereby completely filling the free edge region A between the first disc 2 and the second disc 3.
  • the trilayer 8 is thinner than the edge films 9, which is why an offset would occur during the transition from edge film 9 to trilayer 8.
  • the leveling foil 7 has a thickness which fills this empty space. Ideally, the edge films and the layer stack consisting of compensating film 7 and trilayer 8 should have the same thickness.
  • the leveling foil 7 and the edge foils 9 are, for example, PVB foils, the edge foils 9 having a thickness of 0.38 mm.
  • the first disc 2 is bent together with the second disc 3 before a lamination process, so that the first disc 2 and the second disc 3 are formed spherically.
  • the first disk 2 and the second disk 3 can be bent arbitrarily complex spherical, for example conical or parabolic.
  • the vaults of the Slices 2 and 3 may, for example, have a cylindrical curvature with a bending radius R1 and / or a second curvature with a radius R2, where R1 is not equal to R2.
  • the composite pane 1 between the leveling foil 7 and the first pane 2 may contain a first thermoplastic compound foil 10 (FIG. 3).
  • a second thermoplastic connecting film 11 can be arranged between the pre-composite and the second pane (FIG. 4).
  • Both the first and second thermoplastic compound films 10 and 11 may be PVB films having a film thickness of 0.38 mm and completely covering the first and second disks 2 and 3, respectively.
  • the first and second thermoplastic compound films 10 and 11 serve as adhesive layers and constitute the connection to the first and second disks 2 and 3, respectively.
  • the composite pane 1 can be provided, for example, as a roof panel of a vehicle.
  • FIG. 2 shows a plan view of the composite pane 1 according to the invention prior to lamination with edge foils 9 in the edge area A.
  • the composite pane 1 here has two additional edge foils 9 in edge areas B and C of the composite pane 1, so that the precoat 8 is surrounded by the edge foils 9 like a frame is.
  • FIG. 3 shows a cross section through a second embodiment of the layer stack according to the invention.
  • the composite pane 1 here comprises a first thermoplastic compound foil 10, which is arranged between the first pane 2 and the compensating foil 7 or the edge foil 9 before lamination.
  • FIG. 4 shows a further embodiment of the layer stack according to the invention.
  • the composite pane 1 here additionally comprises a second thermoplastic compound foil 1 1 which is arranged between the second pane 3 and the first laminating foil 4 or the edge foil 9 before the lamination.
  • FIG. 5 shows a flow chart of a preferred embodiment of the method according to the invention for producing a composite pane 1.
  • the process steps shown in FIG. 3 are as follows: I Providing a first laminating film 4, a carrier film 5 and a second laminating film 6 and joining the first laminating film 4, the carrier film 5 and a second laminating film 6 to a pre-bond (trilayer)
  • V placing a second disc 3 on the pre-bond, wherein one side of the second disc 3 rests flat on the trilayer 8 and edge foils 9 and this completely covered
  • the pre-composite may consist of the first laminating film 4, the carrier film 5, the second laminating film 6 and the compensating film 7.
  • the pre-bond may have an embossment which improves the adhesion of the pre-bond.
  • the layer stack of laminating film, carrier film, second laminating film and compensating film can be prefixed point by point in its peripheral areas with a soldering iron by spot welding.
  • the pre-bond is subjected to strong deformations in an autoclave. Despite the effect of heat and tensile forces on the pre-bond, a wrinkle-free composite disk can be guaranteed. Since the very thin carrier film 5 is embedded in a first step between two equally thin laminating films 4 and 6 with a very low content of plasticizers, their rigidity in subsequent manufacturing processes does not affect Disturbing and defects due to wrinkling in the Verbundulationi can thereby be significantly reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
EP18807342.3A 2017-12-05 2018-11-27 Verfahren zur herstellung einer verbundscheibe Withdrawn EP3720702A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17205405 2017-12-05
PCT/EP2018/082693 WO2019110376A1 (de) 2017-12-05 2018-11-27 Verfahren zur herstellung einer verbundscheibe

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EP3720702A1 true EP3720702A1 (de) 2020-10-14

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EP (1) EP3720702A1 (ko)
JP (1) JP6997318B2 (ko)
KR (1) KR102441324B1 (ko)
CN (1) CN110177684A (ko)
BR (1) BR112020010118A2 (ko)
MA (2) MA50984A (ko)
MX (1) MX2020005854A (ko)
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Publication number Priority date Publication date Assignee Title
EP4041545A1 (de) * 2019-10-10 2022-08-17 Saint-Gobain Glass France Verfahren zur herstellung einer verbundscheibe mit funktionselement
CN112677573A (zh) * 2020-12-08 2021-04-20 福耀玻璃工业集团股份有限公司 一种柔性中间膜及夹层玻璃

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU27898A1 (ru) 1930-11-12 1932-09-30 Государственное всесоюзное электротехническое объединение "ВЭО" Приспособление дл изменени пропорциональности шкалы в электрических измерительных приборов
FR2390882A1 (fr) 1977-05-09 1978-12-08 Sierracin Corp Terminaison de barre omnibus pour glaces electriquement conductrices
US4973511A (en) 1988-12-01 1990-11-27 Monsanto Company Composite solar/safety film and laminated window assembly made therefrom
US5147485A (en) * 1990-10-29 1992-09-15 Ford Motor Company Lamination of semi-rigid material between glass
US5208080A (en) * 1990-10-29 1993-05-04 Ford Motor Company Lamination of semi-rigid material between glass
DE19503510C2 (de) * 1995-02-03 1996-12-19 Sekurit Saint Gobain Deutsch Verfahren zur Herstellung einer IR-reflektierenden Verbundglasscheibe für Kraftfahrzeuge
DE19534420C2 (de) * 1995-09-16 1999-05-12 Flachglas Automotive Gmbh Verfahren zur Herstellung einer von verwerfungsbedingten optischen Störungen freien Verbundsicherheitsglasscheibe, Verwendung einer Trägerfolie und Trägerfolie
DE19711459A1 (de) * 1997-03-19 1998-09-24 Flachglas Automotive Gmbh Verfahren zur Herstellung einer gebogenen Verbundsicherheitsglasscheibe
DE19902471C2 (de) * 1999-01-22 2003-07-17 Saint Gobain Sekurit D Gmbh Verbundscheibe
MXPA02006825A (es) * 2000-01-13 2004-04-05 Vetro Sivs P A Soc It Paneles de vidrio.
US6734396B2 (en) 2001-09-07 2004-05-11 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Heatable vehicle window with different voltages in different heatable zones
DE20220494U1 (de) 2002-04-16 2003-10-16 Saint Gobain Sekurit D Gmbh Folienlaminat und Verbundscheibe mit diesem Folienlaminat
GB0607746D0 (en) * 2006-04-20 2006-05-31 Pilkington Plc Glazing
GB0607743D0 (en) * 2006-04-20 2006-05-31 Pilkington Plc Laminated glazing
DE102009025886A1 (de) * 2009-05-29 2010-12-02 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Verfahren zur Herstellung einer Verbundglasscheibe
MX2016014407A (es) * 2014-05-06 2017-01-20 Saint Gobain Cristal de vidrio compuesto con un sello de borde y metodo para producir el mismo.
KR101986031B1 (ko) * 2015-01-20 2019-06-04 쌩-고벵 글래스 프랑스 용량성 스위칭 영역을 갖는 복합 판유리
JP2016204222A (ja) * 2015-04-24 2016-12-08 旭硝子株式会社 合わせガラス
EP3095601B1 (en) * 2015-05-22 2023-07-05 Kuraray Europe GmbH Penetration resistant laminated glass manufactured with interlayer film layers having reduced adhesion and low plasticizer content
EP3365174B1 (de) * 2015-10-23 2023-10-25 Saint-Gobain Glass France Verfahren zur herstellung einer verbundscheibe mit infrarotreflektierender beschichtung auf einer trägerfolie
WO2017094453A1 (ja) * 2015-11-30 2017-06-08 コニカミノルタ株式会社 合わせガラス
RU2704080C1 (ru) 2016-03-17 2019-10-23 Сэн-Гобэн Гласс Франс Ветровое стекло с электрически регулируемым солнцезащитным экраном
EP3225393A1 (en) * 2016-04-01 2017-10-04 Asahi Glass Company, Limited Laminated glass for vehicle
FR3051726B1 (fr) 2016-05-26 2019-07-12 Saint-Gobain Glass France Toit vitre feuillete lumineux de vehicule, vehicule l'incorporant et fabrication
EP3535121B1 (de) * 2016-11-02 2023-10-25 Saint-Gobain Glass France Verfahren zur herstellung einer verbundscheibe mit funktionselement

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CN110177684A (zh) 2019-08-27
BR112020010118A2 (pt) 2020-11-10
US20200338864A1 (en) 2020-10-29
US11207868B2 (en) 2021-12-28
MA50984A (fr) 2020-10-14
MX2020005854A (es) 2020-09-09
KR20200085913A (ko) 2020-07-15
MA50983A (fr) 2021-03-17
JP6997318B2 (ja) 2022-01-17
JP2021505511A (ja) 2021-02-18
WO2019110376A1 (de) 2019-06-13
KR102441324B1 (ko) 2022-09-07
RU2745956C1 (ru) 2021-04-05

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