US20110023548A1 - Glass substrate comprising an edge web portion - Google Patents

Glass substrate comprising an edge web portion Download PDF

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Publication number
US20110023548A1
US20110023548A1 US12/511,167 US51116709A US2011023548A1 US 20110023548 A1 US20110023548 A1 US 20110023548A1 US 51116709 A US51116709 A US 51116709A US 2011023548 A1 US2011023548 A1 US 2011023548A1
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US
United States
Prior art keywords
glass substrate
glass
ribbon
coating
flexible
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.)
Abandoned
Application number
US12/511,167
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English (en)
Inventor
Sean M. Garner
Gary E. Merz
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.)
Corning Inc
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Corning Inc
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 Corning Inc filed Critical Corning Inc
Priority to US12/511,167 priority Critical patent/US20110023548A1/en
Assigned to CORNING INCORPORATED reassignment CORNING INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GARNER, SEAN M., MERZ, GARY E.
Priority to PCT/US2010/043627 priority patent/WO2011014606A2/en
Priority to KR1020127005106A priority patent/KR101817368B1/ko
Priority to CN201610375119.6A priority patent/CN106079747B/zh
Priority to EP10805018.8A priority patent/EP2459494B1/en
Priority to KR1020157020346A priority patent/KR101594749B1/ko
Priority to KR1020167002777A priority patent/KR101735253B1/ko
Priority to TW099125121A priority patent/TWI477469B/zh
Priority to CN201080037933.8A priority patent/CN102482135B/zh
Priority to JP2012523021A priority patent/JP5806665B2/ja
Publication of US20110023548A1 publication Critical patent/US20110023548A1/en
Priority to US13/529,200 priority patent/US9017759B2/en
Priority to US14/671,152 priority patent/US9604808B2/en
Priority to JP2015174427A priority patent/JP6128571B2/ja
Priority to US15/351,956 priority patent/US10183826B2/en
Priority to JP2017075048A priority patent/JP6278545B2/ja
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/02—Forming molten glass coated with coloured layers; Forming molten glass of different compositions or layers; Forming molten glass comprising reinforcements or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • 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
    • B32B17/064—
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B37/142—Laminating of sheets, panels or inserts, e.g. stiffeners, by wrapping in at least one outer layer, or inserting into a preformed pocket
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/145—Reel-to-reel type web winding and unwinding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/20—Advancing webs by web-penetrating means, e.g. pins
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
    • 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
    • B32B2250/02—2 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
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2405/00—Adhesive articles, e.g. adhesive tapes
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/404—Products with identification marks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature

Definitions

  • This invention is directed to a thin glass substrate comprising a web portion extending beyond at least one of the edges of the glass substrate to facilitate handling and/or conveying and/or positioning the substrate.
  • Thin glass substrates can be used in a variety of applications, including so-called “e-paper” and touch sensors.
  • the glass for such substrates can be quite thin, typically less than about 0.3 mm.
  • the processing of the substrates can be performed on an individual glass sheet basis, or most efficiently by conveying the substrate as a long glass ribbon wound on a roll.
  • the method includes dispensing the ribbon from one roll, processing the dispensed portion, then winding the ribbon onto a take-up roll.
  • a glass substrate includes a coating material disposed thereon that extends from at least one edge of the substrate as a web portion that facilitates handing and/or conveying of the substrate without damage.
  • the web portion of this handling coating is preferably flexible, and can be used to hold and/or convey and/or align the glass substrate for processing in a manufacturing step without the need to directly contact interior non-coated portions of the substrate.
  • a method for holding, conveying and/or aligning the glass ribbon is also described.
  • a glass substrate comprising first and second major surfaces and first and second edges, the first and second edges separated by a width W.
  • the first and second edges are preferably substantially parallel with each other.
  • the glass substrate includes a flexible coating disposed over at least a portion of the first and second major surfaces, and the coating comprises web portions extending from at least one of the first or second edge a distance of at least 1 mm.
  • the glass substrate may be in the form of a glass ribbon, or an individual glass sheet and preferably has a thickness equal to or less than 0.3 mm.
  • the coating also comprises a web portion extending from the first edge of the glass substrate a distance of at least 1 mm and a web portion extending from the second edge a distance of at least 1 mm.
  • the flexible coating may coat only a portion of either or both of the first and second major surfaces, or the flexible coating may extend across the entire width W of the glass substrate on either one or the other, or both of the major surfaces of the substrate.
  • the web portion extending from the at least one of the first or second edge of the glass substrate may comprise perforations for engaging with a sprocket or other toothed member.
  • the toothed member may instead be a track that engages with the web portion.
  • a surface of the flexible coating that coats at least a portion of the first major surface of the glass substrate may include a non-planar shape complimentary to a non-planar shape of a surface of the flexible coating that coats at least a portion of the second major surface.
  • an upper portion of the coating on one side of a layer of glass may have a shape that is complimentary to the lower portion of the coating on another, adjacent layer of glass that aligns the glass layers, and preferably prevents the glass of one layer from contacting the glass of another adjacent layer.
  • the flexible coating may be adhered to the first and/or second major surfaces with an adhesive disposed between the coating and the glass substrate.
  • the coating may further comprise strengthening members, such as fibers.
  • the web and non-web portions of the coating may include registration markings to aid in alignment or positioning of the glass substrate.
  • one or both of the first and second major surfaces of the glass substrate may include one or more layers of a laminating or deposited material.
  • the glass substrate may be coated with another material prior to the application of the web coating material.
  • the other material may be a laminating material such as a barrier layer to prevent leaching of the glass.
  • additional materials may be formed on the substrate, such as, for example, electrically functional materials that may comprise an electronic device (e.g. a semiconductor device).
  • an electrically functional device includes organic or inorganic semiconductor and/or conductor materials.
  • a glass ribbon comprising first and second major surfaces and first and second edges and a polymer coating disposed over the first and second major surfaces and extending beyond the first and second edges a distance of at least 1 mm to form flexible web portions.
  • the flexible web portions may comprise perforations that can be used to engage with teeth in a roller (sprocket) or a track.
  • the flexible web portion(s) or non-web portions of the coating may comprise registration markings such as lines or symbols for aligning the glass ribbon.
  • a method of conveying a glass ribbon comprising dispensing a length of a glass ribbon from a first spool, the glass ribbon comprising a coating including a web portion extending from an edge of the ribbon at least 1 mm, engaging the web portion with a feed apparatus to convey the ribbon, the feed apparatus comprising a roller or track for engaging with the web portion, and collecting the dispensed ribbon by winding the dispensed ribbon onto a take-up spool.
  • the web portion may comprise perforations, for engaging with the feed apparatus.
  • the feed apparatus may comprise sprockets, wherein the teeth of the sprocket engage with the perforations to transport the glass ribbon.
  • the feed apparatus is not limited to sprockets, but may further include rollers or tracks for engaging with the web portion.
  • pinch rollers may be used to engage with the web and/or non-web portion of the handling coating.
  • the coating may include registration indicia
  • the method further comprises detecting the indicia and positioning the ribbon in response to the detected indicia.
  • the detecting can be performed by any suitable machine vision system as is known in the art for performing such tasks.
  • the method may further comprise depositing an electrically functional material on at least a portion of the dispensed length prior to the collecting. For example, the glass ribbon is rolled off a first spool, the desired components are deposited on ribbon, and then the ribbon is collected by rolling the ribbon onto a second spool. The web portions may be removed from the ribbon after the depositing, leaving the interior portions of the ribbon undamaged.
  • FIG. 1 a perspective view of a “roll-to-roll” process for conveying a glass ribbon.
  • FIG. 2A-2B are cross sectional views of a glass substrate (glass sheet or glass ribbon) comprising a coating that includes a web portion along an edge of the substrate.
  • FIGS. 3A-3B are cross sectional views of a glass substrate (glass sheet or glass ribbon) comprising a coatings that includes web portions along two edges of the substrate.
  • FIG. 4 depicts a cross sectional view of a glass substrate fully encapsulated by a coating that comprises two web portions along two edges of the substrate.
  • FIG. 5 is a cross sectional view of a stack (or roll) of glass sheets (or a rolled ribbon of glass) illustrating the formation of a gap between the layers that prevents contact between the glass layers.
  • FIG. 6 is a cross sectional view of a stack (or roll) of glass sheets (or a rolled ribbon of glass) illustrating complimentary features in the upper and lower surfaces of the coating that facilitate mating and alignment of the layers.
  • FIG. 7 is a top view of a portion of a glass substrate comprising a coating that includes web portions, wherein the web portions comprise perforations and indicia markings.
  • FIG. 8 is a side view showing sprockets being used to convey a glass substrate comprising a coating with web portions, wherein teeth of the sprocket engage with perforations in the web portions.
  • FIG. 9 is a cross sectional view of a glass substrate being conveyed by pinch rollers that engage web portions of the coating.
  • FIG. 10 is a side view of a glass ribbon being conveyed by tractor assemblies that engage with the web portions of a coating on the ribbon, including a payoff roll and a take up roll.
  • glass is known as a brittle material, inflexible and prone to scratching, chipping and fracture, in glass having a thin cross section can in fact be quite flexible.
  • glass can be wound and un-wound from rolls, much like paper or plastic film.
  • glass can be made flexible, it retains its brittle characteristic, and can be damaged by contact.
  • visual defects can be distracting (e.g. display applications)
  • Even minor, seemingly cosmetic defects are unacceptable.
  • defects even less than 1 um can limit the mechanical reliability of the glass article.
  • handling of the sheets in a manufacturing process for example the depositing of thin film devices on the sheet, can become a source of loss and high cost.
  • glass can be processed on an individual sheet basis, a method contemplated herein, a more efficient method involves starting with a thin ribbon of glass wound on a roll as illustrated in FIG. 1 .
  • the un-wound or dispensed portion 14 can be processed, and then re-wound on a second “take-up” roll 16 .
  • the term “processed” can include any step subsequent to the formation of the glass, including but not limited to grinding, polishing, cleaning, or the deposition of additional layers and/or components (e.g. electrical/electronic components or portions thereof) on the glass.
  • additional layers and/or components e.g. electrical/electronic components or portions thereof
  • the transport of the glass ribbon through the processing equipment can require precise positioning of the ribbon.
  • the formation of thin film devices may require the ribbon to position, or index, between multiple stations or equipment placement, and require exacting registration from position to position. Performing this form of conveyance on a ribbon of glass less than 0.3 mm or less than 0.1 mm or less than 0.05 mm in thickness is difficult enough. Once the devices are formed, there is the problem of stacking or re-winding the ribbon for later use, perhaps in a subsequent manufacturing process, without damage to glass ribbon or the devices formed on one or both surfaces of the ribbon.
  • thin film devices e.g. transistors, electroluminescent layers, etc.
  • FIG. 2A illustrates an edge view of an embodiment of the present invention comprising glass substrate 10 (e.g. glass sheet or glass ribbon 10 ) shown extending into the figure) including a first major surface 18 and a second opposing major surface 20 .
  • the glass substrate is further bounded by first edge 22 a and second edge 22 b .
  • coating 24 that includes a section 24 a that coats at least a portion of first major surface 18 and also a web portion 24 b that extends from first edge 22 a a minimum of at least 1 mm, preferably at least 2 mm, and more preferably at least 3 mm.
  • the web portion or portions may extend up to 1 cm or more from the edge of the glass substrate.
  • Web portion 24 b thus provides a handling surface that can be contacted by handing equipment, such as rollers, without the need to physically contact the glass itself, and may further be used as an alignment aid should alignment with processing equipment be desired.
  • a glass substrate includes a coating or film that extends from an edge of the ribbon, and the extended portion of the coating or film can be used to support or convey the glass substrate without contact or damage to the substrate.
  • the extended portion of the coating can be gripped by rollers, engaged with sprockets, clamped or any other method of securing the extended portion of the coating.
  • the glass substrate edges 22 a and 22 b need not be planar features as shown in FIG. 2A but may have out-of-plane features such as rounded edge bead features.
  • the coating web portion 24 b could also possess non-planar features.
  • a portion of both major surfaces 18 and 20 of the glass substrate are coated with coating 24 .
  • Conveying the glass substrate may include gripping the extended portion of the coating 24 b as well as the coating portion 24 a above the glass substrate.
  • glass coating 24 may be applied to glass ribbon 10 so that a portion ( 24 a ) of coating 24 is applied to at least one major surface of glass ribbon 10 (e.g. surface 18 ), and another portion ( 24 b ) of coating 24 extends from edges 22 a , 22 b , respectively, by at least 1 mm.
  • coating 24 may be applied to at least a portion of both major surfaces of ribbon 10 and the two web portions 24 b extend from each of the first and second edges by at least 1 mm.
  • the coating material may be desirable that extend completely over the entirety of a least one (first or second) major surface. In this way, surfaces of adjacent glass layers are prevented from having direct contact with each other, and at least one extended portion (web) can be used to position or convey the glass as previously described.
  • the glass may be encapsulated by a coating that extends from one or both edges, and which coating may cover one or both major sides of the glass.
  • glass substrate 10 encapsulated by coating material 24 that covers both major surfaces 18 , 20 with a first coating portion 24 a .
  • the glass substrate is flanked by two extended coating web portions 24 b that may be handled in a manner similar to the preceding embodiments.
  • the thickness of the coatings can be selected to form a gap 26 between successive layers to prevent one layer of glass substrate to overlie another layer of glass substrate without allowing any one layer of glass to physically contact another layer of glass.
  • thin glass panels may then be stacked one on top of another, and the thickness of the coating at the edges of the glass creates a gap between the glass panels so that the glass from one panel does not contact the glass of an adjacent panel.
  • the glass ribbon can be wound with similar effect—the glass from one layer of the wind can be prevented from contact the glass of a preceding layer of the wind. The winding may impart a bend radius of less than about 10 cm on the glass ribbon.
  • surfaces of the coating can be molded to include physically complementary features, as depicted in FIG. 6 .
  • these complimentary features function to prevent contact between layers of glass, either in sheet or ribbon form, but these complimentary features can be used to align one layer of the ribbon over a previous layer during stacking or winding.
  • Such complimentary features would typically comprise protrusions and complimentary indentations configured to receive the protrusions.
  • a protrusion 28 on the exposed surface on the upper surface of the substrate and a complimentary indentation 30 on the exposed surface of coating applied to a lower surface of the ribbon allow the substrate to be stacked or wound such that the complimentary features engage and help align the substrate during the stacking or winding process.
  • a web portion may include perforations 32 that allow engagement with a sprocket wheel, as shown in FIGS. 7 and 8 .
  • FIG. 8 illustrates the teeth of sprocket wheels 36 engaged with web portions 24 b .
  • a web portion may also include registration indicia 34 , such as printed or machined markings (lines, circles or the like) that indicate specific locations along the ribbon and preferably are readable by machine vision systems.
  • the perforations themselves may be utilized as indicia.
  • the use of indicia need not be limited to a web portion, and may be placed on any portion of the coating to indicate position not only in a length-wise fashion, but across the width of the ribbon if so desired. That is, an indicia line can run transverse or parallel with the ribbon.
  • perforations and indicia is not limited to the use of glass ribbons, but may be employed as well with individual glass sheets or panels.
  • FIGS. 9 and 10 illustrate several alternative conveyance methods.
  • FIG. 9 shows the substrate being conveyed by pinch rollers 38 , 40 wherein upper rollers 38 and lower rollers 40 pinch web portions 24 b between the two roller sets.
  • FIG. 10 shows a side view of two tractor assemblies 42 that comprise belts 44 that pinch the web portions of the substrate between the belts.
  • FIG. 10 depicts glass ribbon 10 that is undergoing winding from first roll 12 to a second roll 16 .
  • the coating can be applied as a liquid to the glass (ribbon or sheet) or as a pre-formed film.
  • Suitable pre-formed films can be polymers, for example, silicone or polyimide. The choice of material can be selected to be compatible with the contemplated processing.
  • a metal coating may also be used, either separately or in combination with a polymer.
  • the coating may be a laminated coating.
  • Pre-formed films or coatings may be applied with an adhesive, such as an acrylic adhesive.
  • the web portions may include strengthening members.
  • a preformed tape may include glass or polymer fibers (e.g. Kevlar® fibers to provide additional strength to the coating material.
  • the glass substrate may be laminated or coated with a laminating or deposited material prior to the application of the web and non-web portions of the handling coating.
  • a barrier or other protective layer may be applied to the substrate prior to the application of the handling or conveyance coating 24 .
  • the laminating or coated material may be an organic material or an inorganic material, as needed.
  • the substrate may be in the form of a glass ribbon comprising handing coating 24 wound on a first spool (see FIG. 1 ).
  • the glass ribbon is unwound from the first spool and conveyed in a manner as described above (see FIGS. 7-10 for example).
  • the ribbon is then collected and wound onto a second spool.
  • the dispensed portion of the ribbon between the first and second spools may be further processed, such as by the deposition of one or more electrically functional materials onto the ribbon.
  • Such deposition may be accomplished by conventional methods (e.g. a photolithography method).
  • FIG. 9 shows ribbon 10 having electrically functional material 46 deposited thereon.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
  • Electroluminescent Light Sources (AREA)
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  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
US12/511,167 2009-07-29 2009-07-29 Glass substrate comprising an edge web portion Abandoned US20110023548A1 (en)

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US12/511,167 US20110023548A1 (en) 2009-07-29 2009-07-29 Glass substrate comprising an edge web portion
JP2012523021A JP5806665B2 (ja) 2009-07-29 2010-07-29 エッジウエブ部を有するガラス基板
KR1020167002777A KR101735253B1 (ko) 2009-07-29 2010-07-29 유리 물품 및 유리 리본 가공 방법
CN201080037933.8A CN102482135B (zh) 2009-07-29 2010-07-29 包括边缘网状部分的玻璃基片
CN201610375119.6A CN106079747B (zh) 2009-07-29 2010-07-29 包括边缘网状部分的玻璃基片
EP10805018.8A EP2459494B1 (en) 2009-07-29 2010-07-29 Glass substrate comprising an edge web portion
KR1020157020346A KR101594749B1 (ko) 2009-07-29 2010-07-29 에지 웹부를 포함하는 유리기판
PCT/US2010/043627 WO2011014606A2 (en) 2009-07-29 2010-07-29 Glass substrate comprising an edge web portion
TW099125121A TWI477469B (zh) 2009-07-29 2010-07-29 包含邊緣網狀部分的玻璃基板
KR1020127005106A KR101817368B1 (ko) 2009-07-29 2010-07-29 에지 웹부를 포함하는 유리기판
US13/529,200 US9017759B2 (en) 2009-07-29 2012-06-21 Glass substrate comprising an edge web portion
US14/671,152 US9604808B2 (en) 2009-07-29 2015-03-27 Glass substrate comprising an edge web portion
JP2015174427A JP6128571B2 (ja) 2009-07-29 2015-09-04 エッジウエブ部を有するガラス基板
US15/351,956 US10183826B2 (en) 2009-07-29 2016-11-15 Glass substrate comprising an edge web portion
JP2017075048A JP6278545B2 (ja) 2009-07-29 2017-04-05 エッジウエブ部を有するガラス基板

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US14/671,152 Expired - Fee Related US9604808B2 (en) 2009-07-29 2015-03-27 Glass substrate comprising an edge web portion
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US15/351,956 Active 2029-08-20 US10183826B2 (en) 2009-07-29 2016-11-15 Glass substrate comprising an edge web portion

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JP2015511204A (ja) * 2011-11-30 2015-04-16 コーニング インコーポレイテッド 可撓性ガラス基板を搬送するための方法及び装置
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TWI610870B (zh) * 2011-11-30 2018-01-11 康寧公司 用於運輸彈性玻璃基板的方法及設備
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KR101817368B1 (ko) 2018-01-11
US9017759B2 (en) 2015-04-28
US20120258584A1 (en) 2012-10-11
JP2017178778A (ja) 2017-10-05
TW201121912A (en) 2011-07-01
KR20150092352A (ko) 2015-08-12
JP6278545B2 (ja) 2018-02-14
JP2013500923A (ja) 2013-01-10
EP2459494A2 (en) 2012-06-06
KR101735253B1 (ko) 2017-05-12
US9604808B2 (en) 2017-03-28
KR20160020579A (ko) 2016-02-23
WO2011014606A3 (en) 2011-05-12
TWI477469B (zh) 2015-03-21
US20170057770A1 (en) 2017-03-02
US20150197407A1 (en) 2015-07-16
KR20120046759A (ko) 2012-05-10
US10183826B2 (en) 2019-01-22
WO2011014606A2 (en) 2011-02-03
EP2459494B1 (en) 2018-11-21
JP5806665B2 (ja) 2015-11-10
JP2016041652A (ja) 2016-03-31
CN102482135B (zh) 2016-07-06
CN106079747A (zh) 2016-11-09
KR101594749B1 (ko) 2016-02-16
JP6128571B2 (ja) 2017-05-17
CN102482135A (zh) 2012-05-30
CN106079747B (zh) 2018-05-08

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