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US 4,309,296 AGranted
Refrigerant mixture
AssigneeDaikin Kogyo Co., Ltd.
InventorsNaonori Enjo, Hideki Aomi
Life of this patent
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Abstract
A refrigerant comprising a mixture of chlorodifluoromethane and diffluoromethane.
Claims2
A refrigerant consisting essentially of a mixture of chlorodifluoromethane and difluoromethane, the proportion of difluoromethane being 5 to 25% by weight based on the amount of the refrigerant.
Dependencies are inferred from the claim text.