X-RAY OPAQUE FILAMENT, X-RAY OPAQUE COVERED FILAMENT AND FIBER STRUCTURE USING SAID X-RAY OPAQUE FILAMENT AND/OR X-RAY OPAQUE COVERED FILAMENT
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Apr 26, 2006
filing date -
Apr 26, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An X-ray opaque filament is provided, which is constituted of a filament formed of a thermoplastic resin containing an X-ray opaque agent and has a dry heat shrinkage of 3.5 to 0% at 130° C. An X-ray opaque covered filament is provided, which is formed by covering the periphery of the X-ray opaque filament with a covering fiber. Furthermore, an X-ray opaque filament is provided, which is constituted of a fiber formed of a thermoplastic resin containing an X-ray opaque agent and has an oil containing an ionic surfactant in a ratio of 0 to 10% by mass added thereto. An X-ray opaque covered filament is provided, which has a covering fiber formed of a thermoplastic resin having a lower melting point than the thermoplastic resin constituting the X-ray opaque filament. A fiber structure is provided which includes the X-ray opaque filament and/or the X-ray opaque covered filament.
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