Archive for the ‘Corning Glass’ Category

Business Insider: Glass Tupperware better than Plastic Tupperware

June 24, 2015

Yes, it is advertising, but those of us who love glass objects know that glass is better than plastic for many food-related needs!   “…not all reusable containers are created equal: Plastics varieties are prone to odors, stains, and warping, whereas nonporous glass pieces are able to withstand the general wear and tear of reheating, baking, freezing, and more.

Pyrex’s glass containers set the bar high for competitors — they’re safe for use in the oven, microwave, refrigerator, freezer, and dishwasher and they’re easy on the eyes, too. To be fair, though, the Tupperware pioneer has spent the last 90 years perfecting its model.

Pyrex, first developed at Corning Glass Works has been manufactured for almost 100 years.  It found its way into the kitchen when Bessie Littleton, wife of a Corning scientist, asked her husband to bring home some glass to use in place of a broken casserole dish. He gave her the sawed-off bottoms of some battery jars.  She baked a cake, an iconic brand was born and, as they say, the rest was history.
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Glass Factory Featured – and the 2013 Glass Factory Directory is here!

October 22, 2013

Willow Glass, a thin flexible glass material, was featured in the “All Tech Considered” 10/21/2013 segment of NPR’s “All Things Considered” broadcast. Willow Glass is related to “Gorilla Glass” (both made at Corning’s Harrodsburg, Ky. plant). Willow Glass will be introduced as the protection for faceplates of smart phones, tablets and other electronic devices later this year.


The 2013 Glass Factory Directory of North America is now available, as a .pdf, in a print edition or as an electronic data base.  The Directory is updated annually.  More information is available at:

The Market for Strong Glass Grows

March 31, 2011

The strong “Chemcor” glass developed at Corning almost 50 years ago is now sold as “Gorilla Glass” for use as screens on personal electronic devices using touch screen technology.

Today this glass is made by Corning using a fusion-draw process  in Harrodsburg, Ky., and is an alumino-silicate glass, not the everyday soda-lime glass.  In the fusion-draw process hot glass is pumped into a suspended trough and allowed it to overflow and run down either side. The glass flows then meet under the trough and fuse seamlessly into a smooth, hanging sheet of glass.  Fusion-draw glass is tempered in a chemical bath, and does not use heat-tempering as many sheet glasses do.  The resulting liquid-crystal glass can be made very thin and is very strong.  More than 100-plus handheld devices use this glass.

Gorilla Glass LCD television screens will be available from some manufacturers this year.  Sony showed Bravia  model televisions with these screens at the 2011 Consumer Electronic Show in January.  With production going full-tilt in Harrodsburg, Ky., Corning  is converting part of a second factory in Shizuoka, Japan, to fill the growing orders.

Glass Researcher Shares 2009 Nobel Prize for Physics

October 20, 2009

Charles K. Kao was named one of three winners of the Nobel Prize in Physics 2009 “for groundbreaking achievements concerning the transmission of light in fibers for optical communication.”   Kao won one-half of the 2009 Prize for his discovery of how to transmit light signals over long distances through glass fibers as thin as a human hair.  His 1966 breakthrough led to the creation of modern fiber-optic communication networks that carry voice, video and high-speed Internet data around the world.

As detailed in the Nobel Committee scientific information, “An intense search for suitable transmission media in the optical domain began at the beginning of the 1960s. The optical fiber was, however, mostly set aside because of its high attenuation…The attenuation of the first optical fibers was  typically 1000 dB/km, implying that only 1% of light got transmitted in twenty meters of fiber.”

“…Charles K. Kao was a young engineer at Standard Telecommunications Laboratories (ITT) working on optical communication.   He started under the direction of Karbowiak, and then became in charge of a small group…They investigated in detail the fundamental properties of optical fibers with respect to optical communication.  In particular, they did not consider the physics of waveguides only…but also the material properties.  Their conclusions were presented by Kao in London in the beginning of 1966…”

“The most important result was that losses in dielectric media were mostly caused by absorption and scattering. The predicted attenuation of a few dB/km was found to be much less than that measured at the time.  Consequently, the latter was predominantly caused by impurities, in particular iron ions. Fibers with glass of higher purity could be a good candidate for optical communication.  Damping caused by bending and waveguide imperfections, as well as  propagation and radiation losses were also analyzed and found to be small.  Single mode fibers were presented as the best transmission medium for optical communication.”

“What the wheel did for transport, the optical fiber did for telecommunications,” said Richard Epworth, who worked with Kao at Standard Telecommunications Laboratories in Harlow, England in the 1960s.  “Optical fiber enables you to transmit information with little energy over long distances and to transmit information at very high rates.”

Kao was awarded the 1999 Charles Stark Draper Prize by the National Academy of Engineering (U.S.) along with Robert D. Maurer (Corning Glass)  and John B. MacChesney (Bell Laboratories) who did subsequent work in fiber optic technology.