| 摘要 |
<p>A multi-layer tubing (10) composed of a first layer (12), a second layer (14) and an intermediate layer (16) interposed between the first layer (12) and the second layer (14). The first layer (12) contains a first melt-processible thermoplastic such as polyamides, thermoplastic elastomers, and mixtures such materials. The second layer (14) contains a second melt-processible thermoplastic chemically dissimilar form the melt-processible thermoplastic employed in the first layer. The intermediate layer (16) is made of a solidified melt-processible thermoplastic solution which contains the first melt-processible thermoplastic and the second thermoplastic such that the first thermoplastic and the second thermoplastic exist as discretely discernable components dispersed relative to one another in an essentially non-homogenous manner.</p> |
