| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer tube which has durability and can inhibit the permeation of an organic substance. SOLUTION: The multilayer tube comprises: the first layer containing a first melt-processible thermoplastic resin such as a polyamide, thermoplastic elastomer, and a mixture of them; the second layer formed with a second-processible thermoplastic resin which is chemically different from the first melt-processible thermoplastic resin which is used in the first layer; and an intermediate layer located between the first layer and the second layer. The intermediate layer comprises a melt-processible thermoplastic solution which is solidified containing the first melt-processible thermoplastic resin and the second thermoplastic resin, wherein in this solution the first thermoplastic resin and the second thermoplastic resin exist as individually identifiable components dispersed relative to one another in an essentially non-homogenous manner. COPYRIGHT: (C)2006,JPO&NCIPI |
