US 11,964,895 B2
Apparatus for, and method of, roll forming sheets of high refractive index glass
Douglas Dale Bressler, Julian, PA (US); David Alan Deneka, Corning, NY (US); Michael Charles Gerrish, Corning, NY (US); Douglas Hull Jennings, Corning, NY (US); Miki Eugene Kunitake, Elmira, NY (US); William Edward Lock, Horseheads, NY (US); Shyam Prasad Mudiraj, Valley Cottage, NY (US); Neil Eugene Partridge, Avoca, NY (US); Jeremy Nathan Payne, Corning, NY (US); Eugene Roland Proulx, II, Addison, NY (US); Ryan Christopher Sutton, Corning, NY (US); and Steven Howard Tarcza, Painted Post, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Mar. 9, 2023, as Appl. No. 18/119,570.
Application 18/119,570 is a continuation of application No. PCT/US2021/058551, filed on Nov. 9, 2021.
Application PCT/US2021/058551 is a continuation of application No. 17/521,364, filed on Nov. 8, 2021, granted, now 11,629,087.
Claims priority of provisional application 63/113,507, filed on Nov. 13, 2020.
Prior Publication US 2023/0212052 A1, Jul. 6, 2023
Int. Cl. C03B 17/06 (2006.01)
CPC C03B 17/067 (2013.01) [C03B 17/068 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of forming a ribbon of glass comprising:
supplying molten glass into a gap separating a pair of forming rollers,
the molten glass having a viscosity of 0.01 Poise to 3000 Poise, and
each of the pair of forming rollers having an outer diameter of 20 mm to 80 mm;
forming the ribbon of glass from the molten glass; and
(i) reducing a rate of temperature decrease of the ribbon of glass vertically before the ribbon of glass cools to a glass transition temperature, and/or (ii) increasing the rate of temperature decrease of the ribbon of glass vertically after the ribbon of glass has cooled to the glass transition temperature.