Glass substrate comprising an edge web portion

Abstract

A glass ribbon coated with a flexible material, the flexible coating forming a flexible web portion that extends from an edge of the glass ribbon at least one millimeter. The flexible web portion can be used to facilitate handling of the glass ribbon in a manufacturing process, and may include registration markings, or perforations, that further facilitate precise positioning of the ribbon.

1 . A glass substrate comprising:
 first and second major surfaces and first and second edges, the first and second edges separated by a width W;   a flexible coating disposed over at least a portion of the first and second major surfaces, the coating comprising web portions extending from at least one of the first or second edge a distance of at least 1 mm.   
     
     
         2 . The glass substrate according to  claim 1 , wherein the glass substrate is a glass ribbon. 
     
     
         3 . The glass substrate according to  claim 1 , wherein the glass substrate is a glass sheet. 
     
     
         4 . The glass substrate according to  claim 1 , wherein the flexible coating comprises a web portion extending from the first edge a distance of at least 1 mm and a web portion extending from the second edge a distance of at least 1 mm. 
     
     
         5 . The glass substrate according to  claim 1 , wherein a thickness of the glass substrate is equal to or less than 0.3 mm. 
     
     
         6 . The glass substrate according to  claim 1 , wherein the flexible coating coats the first and second major surfaces across the entire width W of the glass substrate. 
     
     
         7 . The glass substrate according to  claim 1 , wherein the web portion extending from the at least one of the first or second edge of the glass substrate comprises perforations. 
     
     
         8 . The glass substrate according to  claim 1 , wherein a surface of the flexible coating that coats at least a portion of the first major surface of the glass substrate has 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. 
     
     
         9 . The glass substrate according to  claim 1 , wherein the flexible coating is adhered to the first and second major surfaces with an adhesive disposed between the coating and the glass substrate. 
     
     
         10 . The glass substrate according to  claim 1 , wherein the flexible coating comprises strengthening fibers. 
     
     
         11 . The glass substrate according to  claim 1 , wherein the flexible coating comprises registration markings. 
     
     
         12 . The glass substrate according to  claim 1 , wherein one or both of the first and second major surfaces include one or more layers of a laminating or deposited material. 
     
     
         13 . A glass ribbon comprising:
 first and second major surfaces and first and second edges;   a flexible 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.   
     
     
         14 . The glass ribbon according to  claim 13 , wherein the flexible web portions comprise perforations. 
     
     
         15 . The glass ribbon according to  claim 13 , wherein the flexible polymer coating comprises registration markings. 
     
     
         16 . 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 roller to convey the ribbon; and   collecting the dispensed ribbon by winding the dispensed ribbon onto a take-up spool.   
     
     
         17 . The method according to  claim 16 , wherein the web portion comprises perforations, and the roller comprises teeth that engage with the perforations. 
     
     
         18 . The method according to  claim 16 , wherein the coating comprises registration indicia, and the method further comprising detecting the indicia and positioning the ribbon in response to the detected indicia. 
     
     
         19 . The method according to  claim 16 , further comprising depositing an electrically functional material on at least a portion of the dispensed length prior to the collecting. 
     
     
         20 . The method according to  claim 19 , further comprising removing the web portion after the depositing.