| 摘要 |
<p>The invention concerns a joint for a valve or a pump designed to be urged in contact with a product, such as a propellant or a solution such as water/ethanol, capable of extracting compounds contained in said joint, said joint comprising a matrix containing polluting compounds. The invention is characterised in that said matrix is made of a flexible material forming a joint, and is coated with a layer forming a barrier preventing or at least limiting the polluting compounds from being extracted by the propellant.</p> |
