Lubricant for compression refrigerating machine and refrigerating apparatus using the same
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United States of America Patent
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Apr 2, 2013
Grant Date -
Feb 4, 2010
app pub date -
Sep 25, 2007
filing date -
Sep 29, 2006
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Abstract
The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, and an organic carboxylic acid alkali metal salt. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and excellent in wear resistance and storage stability under carbon dioxide atmosphere.
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