| 摘要 |
<p>A flexible hose (10, 20) for use in heating systems has an aluminum barrier layer (14, 24) for preventing ingestion of oxygen. The aluminum barrier layer (14, 24) is securely bonded between two adhesion tubes (12, 22; 16, 26) which are vulcanized in place against the aluminum. Vulcanization is performed in the presence of peroxide. Principal active ingredients of the adhesion tubes (12, 22; 16, 26) are ethylene propylene diene polymethylene and polybutadiene-maleic anhydride adduct resin. <IMAGE></p> |
