| 摘要 |
Tubing comprising an inner layer, an outer layer and a middle layer, wherein the inner and outer layers comprise a polyurethane and the middle layer comprises an ethylene ethyl acrylate copolymer or an ethylene methyl acrylate copolymer or an anhydride grafted ethylene methyl acrylate copolymer, a copolymer of two or more of the acrylate copolymers or a mixture of two or more thereof. |
