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CORNING ACHIEVES MAJOR CATALYTIC CONVERTER ADVANCES FOR 1997 AUTOMOBILES

CORNING ACHIEVES MAJOR CATALYTIC CONVERTER ADVANCES FOR 1997 AUTOMOBILES
 CORNING, N.Y., April 22 /PRNewswire/ -- Corning Incorporated (NYSE: GLW) announced today that it has made major advances in the development of its electrically heated catalytic converter, which recently beat California's toughest 1997 automobile emissions regulations in independent laboratory tests. The company's newest prototype has cleared technical hurdles that hampered an earlier prototype introduced by Corning in February.
 The new prototype began converting emissions in half the time required by the earlier prototype and uses one-third the energy to accelerate the conversion process. The prototype began converting emissions at levels below California's 1997 standards for ultra-low emissions vehicles (ULEV) after a five-second pre-ignition warm-up, down from 12 seconds in earlier tests. In contrast, today's converters require approximately two minutes to warn up after ignition before they can begin converting emissions.
 Corning was able to beat the ULEV standards using less than one- third the energy required by the earlier prototype in large part by reducing the mass of the converter's heating element by two-thirds. Further tests will be needed to determine if the converter will require a dedicated battery.
 "The results of the recent tests are very promising," according to Corning's director of new products, David H. Fuller. "We have proven the converter's technical feasibility and are well on our way to proving its practicality."
 The converter easily beat the regulations for all three pollutants addressed by the ULEV standards in tests conducted at the Southwest Research Institute of San Antonio, Texas. Its best results were achieved with non-methane hydrocarbons, which react to form ozone. The converter beat the regulations by more than 50 percent.
 The electrically heated catalyst is being developed at Corning's research laboratory to help reduce "cold start" emissions in the first two minutes of operation, when most of an automobile's pollutants are emitted unchecked. Exhaust gases enter the converter and are preheated by a metal substrate extruded from a patented powdered-metal composition. The bulk of the emissions are then converted to non-toxic emissions by a catalyzed ceramic substrate. Both substrates are coated with precious-metal catalysts.
 The company presented the test results today at a clean-air conference sponsored by the U.S. Environmental Protection Agency being held near Washington.
 Corning suppliers all major automotive manufacturers with ceramic substrates used at the core of the catalytic converter.
 -0- 4/22/92
 /CONTACT: R.W. DeMallie, 607-974-8778, for Corning/
 (GLW) CO: Corning Incorporated ST: New York IN: AUT SU:


KD-CK -- NY003 -- 1061 04/22/92 08:59 EDT
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Publication:PR Newswire
Date:Apr 22, 1992
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