| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent refrigerant leakage without applying a special artificial repairing process in a refrigerant pipe carrying a high pressure refrigerant such as a heat exchanger heat transfer pipe of a refrigeration system such as an air conditioner since sometimes a minute crack or a pinhole occurs in a pipe wall portion due to usage, and there is risk of refrigerant leakage. Ž<P>SOLUTION: In the refrigeration system sealing the high pressure refrigerant and lubricating oil in an interior, by adding at least a monomer for synthesizing polymer resin in the refrigerant or the lubricating oil, in a process of the monomer for synthesizing polymer resin passing through a minute gap such as a pinhole or a crack, a polymerization reaction is carried out by predetermined catalytic action to form a polymer resin layer, and the minute gap such as the pinhole or the crack is closed by the polymer resin layer. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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