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Non-CFC insulation used in Hussmann display units.

Non-CFC Insulation Used In Hussmann Display Units

A polyurethane foam insulation that is made without chlorofluorocarbons (CFCs) that damage the Earth's atmospheric ozone layer has been developed by Flexible Products Co., Marietta, Ga., and is already being used in refrigerated retail display cabinets made by Hussmann Corp., Bridgeton, Mo., the largest U.S. cabinet manufacturer.

"As a leader in refrigeration technology, we encourage any innovation which improves the way we conduct our business, and this innovation is fully supported by Hussmann," commented Dr. Edgar Brolls, technical director of the company's Scottish parent Hussmann/Craig Nicol. Adoption of the non-CFC insulation was announced at the Food Marketing Institute show in Chicago earlier this year.

The foam insulation products -- Flexipol and Delta-Therm -- were conceived more than two years ago, and reached the market in 1989. Roger Ervast, research and development director at Flexible Products, and father of the new insulation, said it allows case manufacturers to enhance their products without significantly compromising the K-factor. "In a supermarket open case application, there is a very marginal difference in increased power consumption," he said.

Quite aside from eliminating CFC use, Ervast said, the new materials actually increase the structural strength of the cases. "Inside the case, the foam is as important for structural reasons as for insulation," he said. About a dozen polyols, catalysts and expanding agents that offer expansion, adhesion and insulation properties similar to CFCs are used in the manufacture of the insulation being commercialized by Hussmann.

PHOTO : At Hussmann cabinet display (l to r): Frank Mutranowski, regional sales mgr., Flexible Products; Ralph Britton, Corp. director of materials and processes, Hussmann; Roger Rhodes, national sales mgr., Flexible; and Pete Likes, vice president of government and trade relations, Hussmann.
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Title Annotation:chlorofluorocarbon, polyurethane foam insulation
Publication:Quick Frozen Foods International
Date:Oct 1, 1990
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