| 摘要 |
There is disclosed a hose comprising first and second layers (10, 12) in direct mutual contact. The first layer (12) comprises a thermoplastic quadpolymer derived from tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, and a perfluorovinyl ether. The second layer (10) comprises: 100 parts by weight of an acrylonitrile-butadiene rubber (NBR), said acrylonitrile rubber comprising from 20 to 65 percent by weight of bound acrylonitrile; from 3 to 20 parts by weight, per 100 parts by weight of the NBR, of at least one acid acceptor; from 1 to 10 parts by weight, per 100 parts by weight of the NBR, of at least one organophosphonium salt; and from 0.25 to 10 parts by weight, per 100 parts by weight of the NBR, of at least one amidine. |
