Resin tube
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United States of America Patent
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Issued Date -
Mar 10, 2005
app pub date -
Sep 7, 2004
filing date -
Sep 8, 2003
priority date (Note) -
Abandoned
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Abstract
A resin tube has a multilayer resin structure. A first resin layer contains polybutylene naphthalate. Second and third resin layers are layers containing copolymer of polybutylene naphthalate and polytetramethylene glycol. The second resin layer is on an outer side of the first resin layer, and the third resin layer is on an inner side of the first resin layer. A fourth resin layer contains polybutyene terephthalate.
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