| abstract |
[PROBLEMS] To provide a high-pressure hose suitable for refrigerant transportation and the like, in which permeation (loss) of a fluid such as a refrigerant is remarkably reduced, is excellent in flexibility and workability by sufficient vulcanization, and can be easily manufactured. To provide. The following equation (1) R 1 R 2 R 3 R 4 —N + · X − (1) (Wherein R 1 , R 2 , R 3 and R 4 are hydrocarbon groups, of which 3 or more have 1 to 5 carbon atoms and X − is an anion) A high-pressure hose comprising a tubular rubber layer formed from a rubber composition containing a layered mineral filler treated with an ammonium salt and rubber. [Selection] Figure 1 |