Compositions – Getters or gas or vapor generating materials for electric... – Metal or metal compound containing
Reexamination Certificate
2006-02-21
2006-02-21
Anthony, Joseph D. (Department: 1714)
Compositions
Getters or gas or vapor generating materials for electric...
Metal or metal compound containing
C252S181100, C252S181200, C252S181700, C252S194000, C252S184000, C423S248000
Reexamination Certificate
active
07001535
ABSTRACT:
This invention describes a solution to the particular problem of liquid water formation in hydrogen getters exposed to quantities of oxygen. Water formation is usually desired because the recombination reaction removes hydrogen without affecting gettering capacity and the oxygen removal reduces the chances for a hydrogen explosion once free oxygen is essentially removed. The present invention describes a getter incorporating a polyacrylate compound that can absorb up to 500% of its own weight in liquid water without significantly affecting its hydrogen gettering/recombination properties, but that also is insensitive to water vapor.
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Anthony Joseph D.
Evans Timothy P.
Sandia National Laboratories
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