Tube provided with a white bismuth salt containing bismuth compound mixture as X-ray opaque agent
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United States of America Patent
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-
Feb 4, 1992
Grant Date -
N/A
app pub date -
Apr 17, 1990
filing date -
Apr 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tube comprises a wall formed from thermoplastic material. The wall is provided with an X-ray opaque agent comprised of a white bismuth compound mixture of bismuth oxide and a white bismuth salt such as bismuth nitrate and bismuth sulfate, the bismuth compound mixture having a bismuth content of 83 to 88% by weight.
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