| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an insulated pipe and a method for preparing the same. <P>SOLUTION: An insulated pipe-in-pipe assembly is provided which includes: (a) at least one inner pipe; (b) an outer pipe disposed around the at least one inner pipe so as to create an annular space between the outer and inner pipes; (c) porous, resilient, compressible material disposed in the annular space; and (d) a remnant of a container that previously is positioned in the annular space and previously hold the compressible material in a volume less than the volume of the compressible material in the annular space. Moreover, the method for preparing the insulated pipe-in-pipe assembly is provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
